Endocrinology Review Quiz

1. An endocrine gland is a ductless gland that secretes substances that have effects elsewhere in the body.
True
False
2. A hormone is a substance that is released from an endocrine gland and acts as a catalyst.
True
False
3. The function of the endocrine system is to integrate body functions over minutes, hours or days.
True
False
4. Identify which of the following endocrine glands are located in the head. (select all that apply)
Choice 1 pineal
Choice 2 anterior pituitary
Choice 3 thyroid
Choice 4 pancreas
Choice 4 ovary
Choice 4 uterus
Choice 4 hypothalamus
Choice 4 posterior pituitary
5. Which of the following hormones are proteins or glycoproteins? (select all that apply)
Choice 1 GnRH
Choice 2 LH
Choice 3 FSH
Choice 4 prolactin
Choice 4 estradiol
Choice 4 testosterone
Choice 4 progesterone
Choice 4 inhibin
Choice 4 HCG
6. Which of the following hormones are steroids?
Choice 1 GnRH
Choice 2 LH
Choice 3 FSH
Choice 4 prolactin
Choice 4 estradiol
Choice 4 testosterone
Choice 4 progesterone
Choice 4 inhibin
Choice 4 HCG
7. In terms of its activity, HCG is similar to LH and eCG is similar to FSH.
True
False
8. Which of the following are functions of testosterone? (select all that apply)
Choice 1 inhibits FSH release from the anterior pituitary without affecting LH
Choice 2 maintains function of the epididymis
Choice 3 has negative feedback on the release of GnRH from the hypothalamus
Choice 4 conversion to DHT leads to development of male secondary sex characteristics
Choice 4 stimulates spermatogenesis
9. Which of the following are functions of estradiol? (select all that apply)
Choice 1 increases the contractility of the uterus
Choice 2 development of female secondary sex characteristics
Choice 3 stimulates GnRH release in the female
Choice 4 inhibits GnRH release in male and female
10. Which of the following are functions of progesterone? (select all that apply)
Choice 1 prepares the uterus for implantation
Choice 2 development of the alveoli in the mammary gland
Choice 3 inhibits release of GnRH
Choice 4 inhibits the rise in LH that causes ovulation
Choice 4 causes regression of the CL
11. Which of the following are functions of PGF2alpha. (select all that apply)
Choice 1 vasoconstriction
Choice 2 CL regression
Choice 3 ovulation
Choice 4 parturition
Choice 4 sperm transport
12. A function of HCG in the human is to maintain the CL during pregnancy.
True
False
13. The function of eCG in the mare is to cause formation of accessory CL.
True
False
14. Placental lactogen causes growth and increased lactation from the mammary gland during the current pregnancy.
True
False
15. GnRH is released by the hypothalamus into the blood stream where it travels first to the heart and then back through arteries to the anterior pituitary gland to have its effect.
True
False
16. While testosterone is the most common sex steroid in the male, estradiol is also present. Progesterone is not present in the systemic circulation of the male however to any sizeable amount.
True
False
17. Inhibin is produced by sertoli cells in the male and granulosa cells in the female. In both sexes, inhibin decreases FSH release from the anterior pituitary without effecting LH.
True
False
18. Relaxin is produced by the corpus luteum of pregnancy and causes the relaxation of the pubic ligaments and dilation of the cervix.
True
False
19. Which of the following hormones have a cAMP second messenger molecular mechanism of action?
Choice 1 GnRH
Choice 2 LH
Choice 3 FSH
Choice 4 Prolactin
Choice 4 estradiol
Choice 4 testosterone
Choice 4 PGF2alpha
20. Which of the following hormones have a calcium second messenger molecular mechanism of action.
Choice 1 GnRH
Choice 2 LH
Choice 3 FSH
Choice 4 Prolactin
Choice 4 estradiol
Choice 4 testosterone
Choice 4 PGF2alpha
21. Which of the following hormones have a molecular mechanism of action that involves the binding of the hormone to its receptor in the nucleus of the target cell.
Choice 1 GnRH
Choice 2 LH
Choice 3 FSH
Choice 4 prolactin
Choice 4 estradiol
Choice 4 testosterone
Choice 4 PGF2alpha