Jasmin is thirsty so she drinks some water. How would she know when to stop drinking water?
A) She will stop once the water reaches her hypothalamus and inhibits the neurons in the OVLT.
B) She will stop drinking once the water enters her bloodstream and signals to her OVLT.
C) She will stop drinking after a short period (about a minute) as just the activity of drinking calms nerves in the subfornical organ.
D) She will stop drinking once her mouth feels warmer than her core temperature.

Question

Quizplus · Accepted Answer

The correct option is C. According to research, the activity of drinking itself can calm the nerves in the subfornical organ, which controls thirst. It takes about a minute of drinking for this to occur, so Jasmin will stop drinking naturally after about a minute. Options A and B are incorrect as they refer to specific areas in the brain that are not directly involved in determining when to stop drinking water. Option D is also incorrect as it is not a reliable indicator of thirst.

Jasmin Is Thirsty So She Drinks Some Water