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Flashcards in endocrine system Deck (9):
1

ADH

what is it

how does it function

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

2

aldosterone

what does it do

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

3

angiotensin 1 released
1. when
2. where
3.stimulate what

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

4

how is Angiotensin 1 converted

Angiotensin 1 converted in the lungs by ACE to Angiotensin 2

5

4 effects of Angiotensin 2

1. release aldosterone from adrenal cortex

2. vasoconstriction

3. increase thirst

4. increase strength of cardiac contractions

6

hypervolemic

hypertension

7

hormone to decrease blood pressure

atrial natiuretic peptide

8

atrial natriuretic petptide released from
when

atrial myocytes
BP high
sympathetic stimulation
angiotensin 2
cardiac distention

9

atrial natriuretic petptide causes

inhibition of renin secretion
vasodilation