Topic 18: Endocrine System - Tissues

Question 1

What are endocrine tissues?

Answer 1

• endocrine function in organs that have other functions as well

Question 2

what are the pancreatic islets of Langerhans? ie. what are the cell types (2)

Answer 2

• 4 cell types (we cover 2)
• a-cells
• b-cells

Question 3

What do a-cells produce? (2)

Answer 3

• glucagon
  increases blood glucose

Question 4

What do b-cells produce? (2)

Answer 4

• insulin
  decreases blood glucose

Question 5

what is the function of the hypothalamus?

Answer 5

Regulate anterior pituitary

Question 6

via which hormones does the hypothalamus regulate the anterior pituitary?

Answer 6

1. GHRH (GH releasing hormone)
2. GHIH (GH inhibiting hormone)
3. GnRH (Gonadotropin releasing hormone)
   - FSH + LH

Question 7

Which cells produce testosterone?

Answer 7

Leydig cells in testes

Question 8

Which cells produce estrogen in the ovaries? (3)

Answer 8

• cells of secondary oocytes
• vesicular follicles
• corpus luteum

Question 9

Which cells produce testosterone in the ovaries?

Answer 9

• corpus luteum

Question 10

What hormone does the duodenum secrete?

Answer 10

secretin

Question 11

What hormone does the kidney secrete?

Answer 11

renin

Question 12

What hormone does the skin secrete?

Answer 12

Vitamin D

Question 13

What hormone does the heart secrete?

Answer 13

atrial natriuretic peptide (ANP)