Adrenal Glands Flashcards
How many adrenal glands?
2
What are the two tissues each adrenal gland has?
Inner medulla
Outer cortex
What hormones does inner medulla produce ?
Catecholamines
Epinephrine
Norepinephrine
Dopamine
When does inner medulla produce hormones ?
In stress situations
What does adrenal cortex secrete ?
Steroids hormones that are essential to life
What are the three zones of outer cortex ?
Zona glomerulosa (ZG)
Zona fasciculata (ZF)
Zona reticularis (ZR)
What steroids hormone does the adrenal gland secrete ?
Glucocorticoids (Cortisol)
Mineralocorticoid (Aldosterone)
What is the action of Glucocorticoids (Cortisol) on carbohydrate metabolism?
Increasing gluconeogenisis
Increases glucose levels
Increases glycogen storage in the liver
What is the action of Glucocorticoids (Cortisol) on protein metabolism?
Accelerates protein catabolism breakdown
What is the action of Glucocorticoids (Cortisol) on fat metabolism?
Lipolysis leading to increase fatty acids in the blood
What is the action of Glucocorticoids (Cortisol) on blood cells and lymphatic organs?
What is the action of mineralocorticoid ?
Acts mainly at the distal renal tubes in the kidneys where it increases Na+ reabsorption in exchange for K+ or H+ secretion
