Chapter 18
Practice quiz
1. T F The endocrine and nervous systems share some of the same mediators.
2. T F Bradykinin and gastrin both have autocrine forms of release.
3. T F Paracrine mode of release is always into the interstitial fliud.
4. T F Thyroid hormones are a modification of dipeptide.
5. T F Steroid hormones display cytoplasmic but not nuclear receptors.
6. T F Melatonin is an amine hormone.
7. T F Peptide hormones are 50 amino acids or more long.
8. T F The typical free fraction is typically between 0.01 and 0.1% of the total hormone concentration in the blood.
9. T F Lipid soluble hormones typically utilize plasma membrane receptors.
10. T F Adenylate cyclase is responsible for the conversion of cAMP into ATP.
11. T F Thyroid and growth hormone would act in an agonistic manner.
12. All of the following
are functions of the endocrine system except:
A. increase or decrease secretion
B. increase or decrease permeability
C. increase or decrease the release of other hormones
D. increase or decrease protein synthesis
E. All of the above are possible
13. The posterior pituitary
secretes:
A. TSH
B. FSH
C. OT
D. T3
E. none of the above
14. Diabetes insipidis is
due to the hyposecretion of:
A. insulin
B. glucagon
C. T3
D. calcitonin
E. none of the above
15. The hormone responsible
for milk "let down"
A. prolactin
B. FSH
C. estrogen
D. progesterone
E. none of the above
16. All of the following
are secretions of the anterior pituitary except:
A. prolactin
B. growth hormone
C. ACTH
D. TSH
E. OT
17. Insulin-like growth
factors are secreted from all of the following except:
A. pancreas
B. liver
C. bone
D. cartilage
E. muscles
18. Estrogens are responsible
for all of the following except:
A. primary sexual characteristics
B. secondary sexual characteristics
C. lower blood cholesterol
D. milk production
E. fluid balance
19. The hormone responsible
for the formation of gentitals in males is:
A. growth hormone
B. testosterone
C. DHT
D. estrogen
E. FSH
20. Sulfonyurea brings about:
A. hypoglycemia
B. increased insulin secretion
C. hyperglycemia
D. glucagon secretion
E. both A and B