Which statement about CSF is correct?
a. It is produced in the brain and spinal cord.
b. It is produced by meningeal cells.
c. It provides for exchange of materials between the blood and brain interstitial fluid.
d. It flows between the pia mater and the brain's surface.
e. It does not flow through the meningeal layers.
C
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Which is a function of LH?
A. It inhibits GnRH secretion by the hypothalamus during ovulation. B. It stimulates production of inhibin by theca cells. C. It stimulates androgen production by theca cells. D. It stimulates the growth of granulosa cells. E. It stimulates estrogen production by theca cells.
We enjoy sunbathing because it stimulates keratinocytes to release
A. keratin. B. collagen. C. beta endorphin. D. carotene.
The zona glomerulosa of the adrenal cortex secretes
a. aldosterone. b. cortisol. c. androgens and estrogens. d. both (b) and (c) above. e. all of these answers.
The combination of a pseudostratified columnar epithelium, a lamina propria of loose connective tissue, and a layer of smooth muscle is found in which respiratory structure?
a. Bronchus b. Larynx c. Pulmonary alveolus d. Bronchiole e. Trachea