A trauma to which of the following brain regions would result in the most severe increase in thirst and water intake?

Question

Quizplus · Accepted Answer

The subfornical organ (SFO) and the median preoptic nucleus (MnPO) are both involved in the regulation of thirst and water intake. The SFO and OVLT are circumventricular organs that lack a blood-brain barrier, allowing them to detect changes in blood osmolality directly. The MnPO receives input from these organs and plays a crucial role in integrating signals related to body fluid homeostasis and then influencing thirst and water intake. Trauma to these areas would disrupt this regulatory mechanism, potentially causing a severe increase in thirst and water intake.

A Trauma to Which of the Following Brain Regions Would