Thirst an ADH

Question 1

what is the primary regulator of water intake?

Answer 1

thirst

Question 2

why do we get thirsty?

Answer 2

sometimes our bodies experience unanticipated decreases of blood volume or increases in osmolarity that alert the body to take corrective action (ex, when u eat salty food, the thirst mechanism prompts u to drink more)

Question 3

what is the function of the ADH (vasopressin) mechanism?

Answer 3

ADH is made in the hypothalamus but STORED in the posterior pituitary
- ADH acts on the kidney tubules to retain water (antidiuretic) and increases blood volume and reduces serum osmolality

Question 4

when the hypothalamus senses low blood volume or increased osmolality, where does it send signals too?

Answer 4

it sends signals to the posterior pituitary to release ADH

Question 5

when does the cycle of the feedback loop stop?

Answer 5

once the hypothalamus gets the message