Question

1. if one had to pick the region of polarity that causes the beginning of ovarian and menstrual cycles, it is likely a) body fat composition b) hypothalamus c) gnrh causing the release of growth hormone d) lh causing changes in fsh/acth e) fsh causing the release of lh 15. t or f estradiol acts in a positive manner on the hypothalamic release of gnrh a) true b) false 16. generally speaking, lipid - soluble hormones bind to a) have you heard the he aint heavy hes my brother at the diamond deli... dont it b) plasma membrane receptors c) nuclear receptors d) they do not preferentially bind to any receptors 17. all of the following are signal transduction pathways in the human body except a) spontaneous phosphorylation b) skeletal muscle cell use of mechanistic receptors c) voltage - gated channels on excitatory tissues d) nervous system use of neurotransmitters e) endocrine system use of hormone 18. hypothalamic/anterior pituitary hormone regulation occurs via the use of a) positive feedback d) portal circulation (capillary beds in series) b) an intricate series of gutterial/flatulent sounds e) para sympathetic nerve activity c) neural activity 19. ______ is responsible for the secretory phase of the endometrium during the menstrual cycle. a) estrogen b) progesterone c) lh d) fsh e) dr. js famous chicken wing sauce (ancient filipino secret ;)) 20. the role of any physiological system in the human body is to ______ a) decrease activity d) increase function b) find the remote e) maintain homeostasis c) increase metabolism

Explanation:

1. The hypothalamus releases GnRH in a pulsatile manner in females. So the statement is True.
2. Lipid - soluble hormones bind to nuclear receptors.
3. Spontaneous phosphorylation is not a typical signal - transduction pathway in the human body among the given options.
4. Hypothalamic/Anterior Pituitary hormone regulation occurs via portal circulation (capillary beds in series).
5. Progesterone is responsible for the secretory phase of the endometrium during the menstrual cycle.
6. The role of any physiological system in the human body is to maintain homeostasis.

Answer:

1. a) True
2. c) nuclear receptors
3. a) spontaneous phosphorylation
4. d) portal circulation (capillary beds in series)
5. b) Progesterone
6. e) maintain homeostasis