the osmotic pressure of body fluids, vascular volume and angiontensin
HYPOTHALAMUS
A poorly localized area of the hypothalamus called the "thirst center" is stimulated by a dry mouth as well as body dehydration, Projections from the thirst center to the thalamus and then to the conscious cortex inform us that we need water.This triggers the sensation of thirst and initiates the conscious desire for water. The hypothalamus also takes subconscious steps to correct dehydration.
Can a brain lesion cause excessive thirst even if the pituitary gland is normal? Also where would the lesion be located?
The hypothalamus controls body temperature, hunger, important aspects of parenting and attachment behaviors, thirst, fatigue, sleep, and circadian cycles.
Yes
The "thirst center" in humans is actually the hypothalamus, which is located in the brain and is responsible for maintaining the homeostasis (the balance of all the body's functions). Water is the second most important nutrient after oxygen that the body needs to function.
Since the hypothalamus is involved in thirst, it will have a part in the production of urine.
Hypothalamus
The hypothalamus regulates body temperature, hunger and thirst, and the release of hormones from the pituitary gland.
The Hypothalamus controls body temperature, thirst, fatigue etc.
The nervous system, in particular a part of the brain called the hypothalamus, controls thirst.
controls body temperature, hunger, thirst, fatigue.