When a cell is immersed in a hypotonic solution, the volume of the cell will rise as it will cause will be a net inflow of water inside the cell. If the concentration of solutes outside the cell is lower as compared to inside the cell and when the solutes are not able to cross the membrane, then the solution is called hypotonic to the given cell.
The ability of an extracellular solution to induce water to osmotically enter or depart a cell is known as tonicity.
Three terms—hypertonic, hypotonic, and isotonic—are employed in order to evaluate if a solution would cause water to move into or out of a cell:
If a cell is immersed in a hypertonic solution, it will lose volume because there will be a net flow of water out of the cell.A cell will shrink if it is submerged in a hypertonic solution because water will escape the cell. Since there is no net water movement in an isotonic environment, the cell's size remains constant. A cell will absorb water and swell when it is exposed to a hypotonic environment.Learn more about osmosis here:
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Explain the role of lipids, carbohydrates, and proteins in the cell membrane.
Ready? Enter your answer here.
III
The role of lipids, carbohydrates and proteins in the cell membrane will be structural, cell communication and protection.
What will be the role of lipids, proteins and carbohydrates in the cell membrane?The cell membrane is composed of different components, among them are carbohydrates, proteins and lipids that allow its complete formation and that give different properties to the membrane. The membrane is mainly composed of a lipid bilayer that gives it the shape it has, having its hydrophobic heads outwards and its hydrophilic legs inwards of the bilayer, causing the membrane to discriminate certain types of elements due to their hydrophilic nature or their electrical charge.
It will also be composed of proteoglycans, generating a layer called glycocalyx that will give a protective layer to the cell membrane towards the outside, protecting it from substances that can destroy or damage it. Also in the membrane itself there will be protein channels that allow the passage of molecules that cannot pass through the membrane by simple diffusion.
Therefore, we can confirm that the role of lipids, carbohydrates and proteins in the cell membrane will be structural, cell communication and protection.
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explain how membrane receptors transmit massages across the cell membrane
Answer: The receptor opens up and allows certain ions in through it's receptor channel into the cell (sodium, potassium, etc.)
One primary advantage of light microscopy over electron microscopy is that ________.
One primary advantage of light microscopy over electron microscopy is that light microscope can be used to view live specimens.
What is light microscopy?Light microscopy is the scientific instrument which provides a magnified view of very small objects that are illuminated with visible light which then passes through optical lenses.
On the other hand, the electron microscope is any of theseveral forms of microscope that use a beam of electrons, rather than one of light, and thus has a much greater resolving power.
The electron microscope is known to be way better at viewing structures than the light microscope. However, one major downside of the electron microscope is that it cannot be used to view live specimens unlike the light microscope.
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characteriza-tion of a 50-kda polypeptide in cytoplasmicdynein preparations reveals a complex withp150gluedand a novel actin.
hCaracteriza-tion of a 50-kda polypeptide in cytoplasmicdynein preparations reveals a complex withp150gluedand a novel actin
a group of auxiliary polypeptides with molecular hundreds of a hundred and fifty, seventy four, 59, 57, 55, 53, 50, and 45 kDa have been determined to copurify with cytoplasmic dynein. in the modern-day observe, a specific monoclonal antibody used to immunoprecipitate the 50-kDa polypeptide from the cytosol of the bovine mind discovered coprecipitating additives of 150, a hundred thirty five, 62, and forty five kDa that had been fully distinct from the polypeptides immunoprecipitated with an antibody to the 74-kDa cytoplasmic dynein subunit. The mammalian equivalent of the Drosophila Glued gene, p150Glued, became reactive with the one hundred fifty- and a hundred thirty five-kDa polypeptides. The primary forty five-kDa aspect of the complicated was identified as the alpha-isoform of contractin, a new form of actin, with the aid of N-terminal microsequencing of tryptic peptides. while contractin, p50, and p150Glued have been immunoblotted from sucrose gradient-fractionated mind cytosol, they have been determined to cosediment entirely at 20 S. using an antibody to p150Glued, immunofluorescence microscopy confirmed centrosomal staining, which microtubule depolymerization eliminated. these findings put together display that the 50-kDa polypeptide is part of a cytosolic complicated that is unique from cytoplasmic dynein. but according to the immunolocalization information, there may be a connection to microtubule minus ends, which raises the possibility of cellular-dynein touch.To learn more about cytoplasmic dynein here:-
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ASAP. Will mark Brilliantest
Alex poured some pond water into three beakers. She then put waterweed into each beaker. She put the beakers in different places.
a.The waterweed in the box changed from dark green to pale yellow. Why did this happen?
Answer:
This happen because the box has blocked the sunlight from the waterweed and it has stopped photosynthesizing.
An atom of a certain element has 36 proton,36 electrons and a mass number of 84.at room temperature this element is a very stable gas.how many neutrons are in this atom
Answer:
b^2+c^2+a^2 pretty easy
a property that is common to all microbial cells is . evolution communication between cells differentiation genetic exchange between cells motility
A property that is common to all microbial cells is evolution
What is Evolution ?In other words, descent with modification, evolution can be defined as any net directional change or cumulative change in the traits of organisms or populations over many generations. It specifically takes both the beginning and the spread of alleles, variations, trait values, or character states into account.
Because it explains how life developed on Earth and how the many species are related, evolution is crucial. The linkages in evolution contribute to the understanding of many biological issues, including the diversity of life.It's general knowledge that Charles Darwin is credited with "discovering" evolution. However, the historical record reveals that between 1748 and 1859, the year when Darwin published On the Origin of Species, around 70 distinct authors wrote works on the subject of evolution.Learn more about Evolution here:
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question 6 (true/false worth 2 points) (04.03 lc) during cellular respiration, chemical energy is converted to cellular energy. true false
It is true that during cellular respiration, chemical energy is converted to cellular energy.
What is cellular respiration?Cellular respiration is a series of metabolic reactions that convert chemical potential energy stored in organic matter (such as glucose) into a form (cellular energy, which is ATP, means adenosine triphosphate) that can be directly used by the cell for a variety of activities.
It is also a process of oxidizing glucose to produce a large amount of energy, as well as carbon dioxide and water.
Thus, it can be concluded that the given statement is true.
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vander’s human physiology, 15th ed. by eric widmaier, hershel raff, kevin strang publisher: mcgraw hill online pdf
Vander’s human physiology, 15th ed. by eric widmaier, hershel raff, kevin strang publisher: mcgraw hill is a textbook on human physiology easily available on amazon or flipkart. You can also try to find this book in online free libraries.
What are the contents in the book?Chapter 1 Homeostasis: A Framework for Human PhysiologyChapter 2 Chemical Composition of the BodyChapter 3 Cellular structure, proteins, and MetabolismChapter 4 Movement of Molecules Across Cell MembranesChapter 5 Control of Cells by Chemical MessengersChapter 6 Neuronal Signaling and the Structure of the Nervous SystemChapter 7 Sensory PhysiologyChapter 8 Consciousness, the Brain, and BehaviorChapter 9 MuscleChapter 10 Control of Body MovementChapter 11 The Endocrine SystemChapter 12 Cardiovascular PhysiologyChapter 13 Respiratory PhysiologyChapter 14 The Kidneys and Regulation of Water and Inorganic IonsChapter 15 The Digestion and Absorption of FoodChapter 16 Regulation of Organic Metabolism and Energy BalanceChapter 17 ReproductionChapter 18 Defense Mechanisms of the BodyChapter 19 Medical Physiology: Integration Using Clinical CasesTo learn more about human physiology visit:
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if a molecule is too big to move in or out of a cell on its own, but uses a protein channel to move, without additional energy, what type of transport is this?
Facilitated transport is the type of transport way which does require protein channel but not any ATP (energy).
Facilitated Transport- Facilitated transport is one way to move such materials without utilizing cellular energy. During assisted transport, materials are traveling down a concentration gradient. They are, in other words, passively diffusing from an area of high concentration to an area of low concentration.
Without the use of energy, chemicals simply migrate passively from a region of higher concentration to a region of lower concentration.
Example, A case of facilitated diffusion is glucose transfer.
ATP- Basic Unit of Energy Molecule to perform any function
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Natural selection can affect gene frequencies by introducing new alleles to a population. True or false?.
The statement 'Natural selection can affect gene frequencies by introducing new alleles to a population' is False about this process.
What is Natural selection?Natural selection is an evolutionary process associated with differential survival and reproduction of the more adapted organism, which depends on alleles and genotypes that carry such individuals.
In conclusion, the statement 'Natural selection can affect gene frequencies by introducing new alleles to a population' is False about this process.
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how do you distinguish between the bonds that compose the hydrophobic hydrocarbon tail of a lipid molecule versus the forces that drivelipid droplet formation (the hydrophobic effect)?
The difference between the bonds that compose the hydrophobic hydrocarbon tail of a lipid molecule versus the forces that drive lipid droplet formation (the hydrophobic effect) is hydrophobic hydrogen tail of a lipid molecule is the non water loving lipid whereas hydrophobic is the effect which is known as non water loving effect.
What is hydrophilic meant?If a molecule is the “water-loving”, it is known as the ‘hydrophile’ (noun) that possesses a hydrophilic nature. In the contrast, if a molecule doesn’t like water (h2o) i.e. repel the water, it is known as the ‘hydrophobic‘. The terms hydrophilic and the hydrophobic are used to describe the molecules or the substances based on how they react to the water molecules. The degree or the extent to which a molecule or a surface attracts water is known as the ‘hydrophilicity‘ of that molecule. Some of most common examples of the hydrophilic substances are sugar, salt, starch, and cellulose.
The tail of the phospholipid is the hydrophobic because it is composed of carbon and hydrogen atoms. If a molecule is made up of mostly of carbon and hydrogen atoms, it is a nonpolar or hydrophobic molecule. Carbon and hydrogen have the similar electronegativities, so they share the electrons equally resulting in the nonpolar bond. Because the tail of the phospholipid is the nonpolar, it does not interact with the water, whereas, Hydrophobic effect is just a tendency of non-polar molecules to come together so that they can avoid the water from their surface area as much as they can.
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transcription factor irf4 promotes cd8( ) t cell exhaustion and limits the development of memory-like t cells during chronic infection.
Chronic stimulation results in an exhausted phenotype in CD8+ T lymphocytes that is defined by the production of inhibitory receptors, down-modulation of effector function, and metabolic abnormalities. T cell fatigue restricts the removal of virus-infected or tumour cells but protects against severe immunopathology.
What is Transcription factor ?A transcription factor is a molecule that regulates a gene's function by deciding whether its DNA (deoxyribonucleic acid) is converted into RNA (ribonucleic acid). Using the DNA of the gene as a template, the enzyme RNA polymerase catalyses the chemical processes that result in the synthesis of RNA.
The SRY protein is another illustration of a transcription factor that participates in development. For sex differentiation to occur during human development, the SRY protein is required. The SRY protein activates genes involved in the development of the male reproductive system.Learn more about Transcription factor here:
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masso, m., accurate and efficient structure-based computational mutagenesis for modeling fluorescence levels of aequorea victoria green fluorescent protein mutants. protein eng des sel 2020, 33.
Accurate and efficient structure-based computational mutagenesis for modeling fluorescence levels of aequorea victoria green fluorescent protein mutants is a research paper by Masso M.
What is the abstract?Recently, experimental researchers determined the functional impacts (fluorescence levels) of over 46,000 single and multiple amino acid variations of the Aequorea victoria green fluorescent protein (GFP), and to characterize these effects, computational mutagenesis was applied. For each GFP mutant, the method produced a single score that reflected the overall shift in sequence-structure compatibility in comparison to native GFP as well as a vector of environmental perturbation (EP) scores that described the effects at each GFP residue location. By contrasting the sequence-structure compatibility scores with the functional data, a significant (P 0.0001) link between GFP structure and function was shown. Then, using random forest (RF) classification and tree regression machine learning methods, generated vectors for GFP mutants were utilized to construct predictive models of fluorescence.
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in the chapter, "the awakening," what is the one thing that elana’s father says that a maturing species must have?
In the chapter, "the awakening," the one thing that Elana’s father says that a maturing species must have IS Independence.
The Awakening examines a woman's quest to discover and embrace her authentic self. Her dedication to that goal strains her relationships with her family and friends and clashes with the cultural norms of the time. The plot of Edna Pontellier's novel is set in upper-class Creole society in Louisiana in the 1890s.
The concept of self-ownership is the main point of Kate Chopin's poem The Awakening. The book was created at a time when women were mostly seen as property, first the property of their fathers and then their husbands. Edna Pontellier discovers self-ownership in The Awakening through her sexual awakening.
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deep vein thrombosis in mice is regulated by platelet hmgb1 through release of neutrophil-extracellular traps and dna
Deep vein thrombosis in mice is regulated by platelet hmgb1 through release of neutrophil-extracellular traps and dna
Venous thromboembolic (VTE) disease, consistS of deep venous thrombosis (DVT) and pulmonary embolism (PE) is a major cause of morbidity and mortality. recently prophylactic measures are not sufficient to prevent all occurrence in part due to an incomplete understanding of the underlying pathophysiology. sufficient evidence indicates interplay between activation of the innate immune system and thrombus development. Recent work has illustrated that platelet release of HMGB1 leads to increase in microvascular complications following injury. Additionally, platelet HMGB1 was found to enhance DVT and elevated the formation of neutrophil extracellular traps (NETs), although the role of HMGB1 induced NET release in thrombosis remains unexplored.
Utilizing a transgenic mouse lacking HMGB1 particularly from platelets and megakaryocytes it is illustrated the specific role of platelet-derived HMGB1 in acute and subacute/chronic venous thrombosis.
HMGB1 is elevated following DVT and contributes to thrombus formation.HMGB1 release from platelets promotes acute and subacute/chronic DVT formationTo know more about Platelets visit : https://brainly.com/question/11333832
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The nerves that make up the spinal cord carry commands between the __________ and the brain.
Answer: Peripheral nerves
Explanation:
all other factors (concentration, solute size, etc.) being equal, which type of solute does a cell tend to pull inside?
Answer: Positively-charged solutes
Explanation:
The excess of negative charge on the cytosolic side of the plasma membrane tends to pull positively charged solutes into the cell. Specifically, a variety of negatively charged inorganic and organic ions (anions), including nucleic acids, proteins, and many cell metabolites, maintain this relatively constant "positive pull" at the surface of the cell.
What is the function of carbohydrates?
A. To store energy
B. To help animals stay warm
C. To absorb the sun's energy
D. To store hereditary information
Answer:A
Explanation:
arrange the process of hemostasis in sequence. (separate letters by a comma and space [ex. a, b, c,…])
The sequence for the process of hemostasis is A, F, B, C, D, E.
What is Hemostasis?Your body's natural response to an injury, hemostasis, stops the bleeding and repairs the damage. This skill typically works to your advantage by preserving blood and avoiding infections. The process can occasionally malfunction, leading to issues with excessive or insufficient clotting. There are four distinct steps to the hemostasis mechanism.
1) Blood vessel constriction.
2) The development of a transient "platelet plug."
3) The coagulation cascade is activated.
4) The last clot, or "fibrin plug," forms.
A series of enzymatic activations that result in the development of a clot containing platelets and fibrin polymer are made easier by hemostasis. While the process of tissue regeneration is taking place, this clot plugs the wounded area, manages the bleeding, and stops further bleeding.
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I understand that the question you are looking for is "Arrange the process of hemostasis in sequence. (Separate letters by a comma and space as follows: A, B, C, D)
A. Kidneys release erythropoietic factor
B. Increase in red blood cell production
C. Enzyme stimulates red bone marrow
D. Oxygen delivery increased to the tissues
E. Oxygen delivery decreased to the tissues
F. Decrease in red blood cell production"
Which experiment would most likely contain experimental bias?
A.
A chemistry class performs an experiment in which each reaction has the same amount of starting material and begins at the same temperature.
B.
A company that makes pain relief medication tests the effectiveness of their own medicine compared to that of three other brands.
C.
A student tests the attraction of bees to flowers by placing four different flowers in the same location and counting how many bees visit each.
D.
A lab performs a test by giving bacterial colonies the same amount of different antibiotics and growing them under the same conditions.
Answer:
B.
Explanation:
The company wants people to buy the product, so they would avoid any negative result that may come from the experiment.
Spontaneous movement of molecules and ions from an area of high concentration to an area of low concentration.
Spontaneous movement of molecules and ions from an area of high concentration to an area of low concentration is diffusion.
It is due to the concentration gradient that develops between two areas, that molecules move into or out of an area.
In the field of science, diffusion can be described as a process in which molecules tend to move from a region that has a higher concentration of molecules to an area that has a lower concentration of molecules. Such a process occurs along the concentration gradient and hence does not require energy.
The process of diffusion is utterly important in everyday life activities such as the exchange of gases between blood and alveoli occurs due to diffusion. A tea bag immersed in water is able to spread its colour due to diffusion.
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Read the paragraph from the section "Shellfish."
Lower pH values occur naturally on the West Coast during upwelling events, but recent observations indicate that CO2 originating from human activities is contributing to seasonal aragonite undersaturation. Scientists suspect that low pH may be a factor in the oysters' reproductive failure. More research is needed to disentangle potential acidification effects from other risk factors. Nonetheless, acidification is a potential factor in the current crisis to the multi-million-dollar oyster industry. The potential role of ocean acidification is encouraging new collaborations and accelerated research on ocean acidification and its biological impacts.
Which of the following can be inferred from the selection above?
A
Human activities are the primary cause of the aragonite undersaturation during upwelling events.
B
While some marine organisms are harmed by ocean acidification, others are helped by the lower pH levels in the ocean.
C
Collaborators are more motivated to study ocean acidification because of the economical impact it has on the oyster industry.
D
Ocean acidification is not to blame for the oysters' reproductive failure because lower pH values are natural during upwelling events.
Human activities are the primary cause of aragonite undersaturation during upwelling events.
What is an oyster?Oysters are bivalve mollusks that obtain their food by filtering seawater for microscopic algae (phytoplankton), as well as some organic debris.
Marine life is getting affected because of the Increase in carbon levels and global warming. An increase in carbon level increases the solubility of water.
The oxygen level in the marine water decrease and the carbon dioxide level increases. The increase in solubility of carbon dioxide in water leads to a decrease in water pH level.
Therefore, Human activities are the primary cause of aragonite undersaturation during upwelling events.
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a cell has 6 pairs of homologous chromosomes. following mitosis and cytokinesis how many chromosomes will each daughter cell contain? chegg
if the cell has 6 pairs of homologous chromosomes. following the mitosis and cytokinesis the result are Each daughter cell will have the half of the original 46 chromosomes, or the 23 chromosomes. Each chromosome has consists of 2 sister chromatids.
The Homologous Chromosomes are made of the chromosomal pairs of the same length and the centromere positions for the genes which corresponding to the same loci. Typically one of the most chromosomes is inherited by from the father and to the other from the mother. Diploid organisms, like the humans, that carry two copies of the genome in each of one of their cells. Having two copies of the each chromosome, called as homologous chromosomes, which helps increase the both the variety and the stability of a species
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microorganisms play key roles in the cycling of important nutrients in plant nutrition, particularly those of microorganisms play key roles in the cycling of important nutrients in plant nutrition, particularly those of carbon. nitrogen. carbon and nitrogen sulfur. carbon, nitrogen, sulfur, and phosphorus.
Microorganisms play key roles in the cycling of important nutrients in plant nutrition, particularly those of microorganisms play key roles in the cycling of important nutrients in plant nutrition, particularly those of carbon, nitrogen and sulfur.
What is Microorganisms?
Microorganisms, often known as microbes, are minute organisms that can be single cells or colonies of cells.
Ancient texts like the Jain scriptures from India's sixth century BC raised the specter of the potential existence of invisible microscopic life. In the 1670s, Anton van Leeuwenhoek used a microscope to observe microorganisms, which marked the beginning of the scientific study of microbes. Louis Pasteur disproved the hypothesis of spontaneous generation in the 1850s by discovering that bacteria were to blame for food degradation. Robert Koch determined in the 1880s that bacteria were to blame for tuberculosis, cholera, diphtheria, and anthrax.
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evaluation of the respective influence of thyroid hormonesand tsh on blood coagulation parameters after total thyroidec-tomy
This prospective investigation demonstrates that significantly reduced levels of VWF:Ag, VWF:CBA, and FVIII:C are linked to severe short-term hypothyroidism. Exogenous TSH administration has no impact on the coagulation parameters. According to these results, thyroid hormone insufficiency is probably the key factor contributing to coagulation changes in hypothyroid patients.
What is Thyroid hormone ?Triiodothyronine and thyroxine are the two hormones known as thyroid hormones that the thyroid gland produces and secretes. They are tyrosine-based hormones whose main function is to control metabolism. Iodine makes up a portion of the molecules T3 and T4.
Iodine shortage may be the cause of thyroid issues. Inflammation can result from autoimmune illnesses when the thyroid is attacked by the immune system, causing either hyperthyroidism (caused by Graves' disease) or hypothyroidism (induced by Hashimoto's disease) (which may or may not cause pain),Learn more about Thyroid hormone here:
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sort each process into the appropriate bin according to whether it contributes to heredity only, genetic variation only, or both. (note that a bin may be left empty.)
DNA replication, anaphase I, II, and metaphase II are heritable exclusively.
solely including genomic variation: crossing over, metaphase 1 and
fertilizations
Hereditary only: Only enough DNA is duplicated to supply the daughter cells.
Chromosomes in anaphase I and II are migrating to daughter cells to be passed on.
Chromosomes in metaphase II were randomly arranged in metaphase I and will only align to travel to each daughter cell.
Only genetic variation: as chromosomes cross over, they exchange information, which explains DNA variety.
Random chromosomal distribution during metaphase I will also produce variability.
Both: the newly created zygote has unique information from both parents during fertilisation (genetic variation), and this information is transmitted down to the following generation.
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A student adds 10 drops of a copper sulfate and sodium hydroxide solution to a test tube containing chicken broth. The solution undergoes a color change from blue to purple.
The presence of which organic molecule is indicated by the color change of the solution?
glycogen
protein
nucleosome
fatty acids and glycerol
The molecule whose presence is indicated is protein.
What is the food test?The food test refers to the chemical methods that we could use to obtain the kind of food substance that we have in a sample. Let us recall that food is a chemical substance hence it is capable of chemical interaction with other chemicals.
One of the kind of food tests is the tests for proteins in which copper sulfate and sodium hydroxide solution is used. In this test, the color of the solution turns from blue to purple.
Hence the molecule whose presence is indicated is protein.
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Why aren't viruses alive?
each of the following is a branch of the mandibular division of the trigeminal nerve that supplies the temporomandibular joint except one
Nasopalatine Nerve
The trigeminal nerve's maxillary branch includes the nasopalatine nerve as a subdivision. The trigeminal nerve is a sensory nerve, and so is the nasopalatine nerve. The pterygopalatine ganglion is where it enters the sphenopalatine foramen after coursing into the nasal cavity. It travels beneath the ostium of the sphenoid sinus to the septum, where it lies between the periosteum and the mucous membrane and gives the septum feeling. The nasopalatine canal, which connects the nasal and oral chambers, is where it travels from here before proceeding inferiorly to breach the hard palate anteriorly. This canal also contains the palatine glands, a little amount of fat, and the terminal branch of the nasopalatine artery.
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