What are oropharynx receptors, which hormone do they suppress, and how is it known that they exist? If a person stranded on a desert island drank seawater to try to quench his thirst, how would this affect the oropharynx receptors?
What will be an ideal response?
Oropharynx receptors inhibit the sense of thirst when they come in contact with cool water. They also inhibit
secretion of vasopressin (ADH). They have not been identified anatomically, but presence of even a small amount of
cold water in the throat is known to satisfy thirst even if the water is not absorbed and thus does not actually
alleviate dehydration. Presence of receptors that inhibit the thirst sensation are the best guess as to how this works.
Presumably drinking seawater would temporarily reduce the sense of thirst by the same proposed mechanism.
You might also like to view...
The stomach absorbs a significant amount of digested food.
Answer the following statement true (T) or false (F)
The dural sinuses are found between the ____________________.
Fill in the blank(s) with the appropriate word(s).
Embryonic stem cells are derived from the
A) trophoblast. B) outer cell mass of the morula. C) inner cell mass of the blastocyst. D) middle layer of the zygote.
The largest and most superior of the cartilages in the larynx is the
A. thyroid cartilage. B. cricoid cartilage. C. arytenoid cartilage. D. cuneiform cartilage. E. corniculate cartilage.