AA&P part 7

Question 1

Zona
glomerulosa

Answer 1

Secretes hormones called mineralglucocorticoids
Used to regulate mineral homeostasis. Increase blood levels of Na and water, decreases blood level of k+

Question 2

Zona fasciculata

Answer 2

Secretes glucocorticoids that affect glucose homeostasis

Question 3

Zona reticularis

Answer 3

Secretes weak androgenic (hormones with masculinizing effects)

Question 4

Aldosterone

Answer 4

-major mineral corticosteroids secreted by adrenal glands
-helps regulate sodium and potassium homeostasis

Question 5

Renin-angiotesin- aldosterone (RAA) pathway

Answer 5

Controls secretion of aldosterone

Question 6

Secretion of glucocorticoids are regulated by negative feedback. The help control

Answer 6

• protein breakdown
• glucose formation
• lipolysis
• resistance to stress
  -inflammation
  -immune response

Question 7

Protein breakdown example

Answer 7

Cortisone

Question 8

Glucose formation ex.

Answer 8

Prednisone

Question 9

Lipolysis ex

Answer 9

Triamcinolone (skin conditions)

Question 10

DHEA

Answer 10

In males-has no effect because testosterone is stronger
Females- promotes libido and are converted to estrogens

Question 11

Adrenal medulla

Answer 11

Stimulated by pregangangolic neurons of ANS

Chromafin cells- secrete epinephrine and norepinephrine involved in fight or flight

Question 12

Pancreas is located

Answer 12

In the curve of duodenum
- both an endocrine and exorcrine gland

Question 13

Acini

Answer 13

Excited cells arranged in clusters

Question 14

Pancreatic islets(islets of langerhans)

Answer 14

Clusters of endocrine tissue among the acini
- contain secreting cells

Question 15

Alpha(A) cells

Answer 15

Glucagon

Question 16

Beta (B) cells

Answer 16

Insulin

Question 17

Delta(D) cells

Answer 17

Somatostatin

Question 18

F cells

Answer 18

Pancreatic polypeptide