endocrine system

Question 1

ADH

what is it

how does it function

Answer 1

anti diuretic hormone
secreted from anterior pituitary when blood pressure is low
functions on kidney to stimulate water reabsorption in collecting ducts

Question 2

aldosterone

what does it do

Answer 2

released from adrenal cortex when blood pressure is low

stimulates kidney collecting ducts to increase secretion of NA into blood and decrease K+ in blood.

causing blood pressure to increase

Question 3

angiotensin 1 released

1. when
2. where
3. stimulate what

Answer 3

when baroreceptors in heart are stretched indicating low BP

sympathetic NS stimulates granular cells to release renin

renin stimulate conversion of angiotensinogen present in the liver to angiotensin 1

Question 4

how is Angiotensin 1 converted

Answer 4

Angiotensin 1 converted in the lungs by ACE to Angiotensin 2

Question 5

4 effects of Angiotensin 2

Answer 5

1. release aldosterone from adrenal cortex
2. vasoconstriction
3. increase thirst
4. increase strength of cardiac contractions

Question 6

hypervolemic

Answer 6

hypertension

Question 7

hormone to decrease blood pressure

Answer 7

atrial natiuretic peptide

Question 8

atrial natriuretic petptide released from

when

Answer 8

atrial myocytes
BP high
sympathetic stimulation
angiotensin 2
cardiac distention

Question 9

atrial natriuretic petptide causes

Answer 9

inhibition of renin secretion

vasodilation