Adrenal Cortex Mineralocorticoids

Question 1

Mineralocorticoids regulate ______ concentrations in extracellular fluids

Answer 1

electrolyte

Question 2

Mineralocorticoids are important because Na+ concentration changes. this causes the movement of ____ witch affects blood _____, witch effects blood pressure

K+ concentration changes leading to resting _____ _____

Answer 2

movement of water,
volume
membrane potential

Question 3

The primary Mineralocorticoid is?

Answer 3

Aldosterone

Question 4

What does Aldosterone stimulate?

___ reabsorption and _____ water retention, saliva, _____ _______, K+ _________

Answer 4

Na+ reabsorption and kidney water retention, saliva, gastric juices, K+ excretion

Question 5

Mineralocorticoids: What does Aldosterone synthesize and activate?

Answer 5

The NA+ -K+ pump

Question 6

Mineralocorticoids: The name of the Aldosterone regulation mechanism?

Answer 6

Renin-Angiotensin-Aldosterone mechanism

Question 7

Mineralocorticoids: Renin-Angiotensin-Aldosterone mechanism influences blood volume and pressure by regulating the release of aldosterone it does this by regulating ___ AND____ _______ by kidney’s

Answer 7

NA+ and water reabsorption

Question 8

What are the Renin-Angiotensin-Aldosterone mechanism’s triggers?

Answer 8

Decreased blood volume
high potassium
Extreme stress
increased blood volume/pressure

Question 9

Mineralocorticoids: Primary Regulators of Aldosterone: a _______ in blood volume/pressure
an increase in _____ in blood

Answer 9

decrese

K+

Question 10

Other factors (regulators) of Aldosterone are: \_\_\_\_\_\_
and increase in\_\_\_\_\_\_ \_\_\_\_\_\_/volume

Answer 10

stress

blood pressure

Question 11

Mineralocorticoids: What is the primary pathway of Aldosterone? 1. A decrease in _______ or ______ signals the kidney to release ______. the release of the former triggers Angiotensin 2. this targets the kidneys tubules this then 3. results in Absorption of ____ and water and increased ___ excretion 4. blood volume/ pressure ______
(OR SKIP 1-3 and have just higher K+ in blood and skip to

Answer 11

blood pressure or volume
renin

of NA
K+
increases

Question 12

Mineralocorticoids: Explain the the secondary pathway in Aldosterone:
1. Stress triggers the _________to secrete CRH. this simulates the anterior pituitary to release ______ to the adrenal cortex. this causes the Absorption of NA and water and K+ secretion witch leads to ______ ______ _____

Answer 12

hypothalamus
ACTH
high blood pressure