Which of the light micrographs in the figure below shows the type of epithelial tissue whose functions include filtration, diffusion, osmosis, and secretion in serous membranes?
a) A
b) B
c) C
d) D
e) E
Answer: a
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The internal acoustic meatus is located in which bone?
A) occipital B) ethmoid C) sphenoid D) temporal E) parietal
The first step of hemostasis is
A) coagulation. B) agglutination. C) clot retraction. D) vascular spasm. E) platelet phase.
Melanocytes and keratinocytes work together in protecting the skin from UV damage when keratinocytes ________
A) maintain the appropriate pH in order for the melanocyte to synthesize melanin granules B) maintain the appropriate temperature so the product of the melanocyte will not denature C) accumulate the melanin granules on their superficial portion, forming a UV-blocking pigment layer D) provide the melanocyte with nutrients necessary for melanin synthesis
The outermost layer of the heart is called the:
a. epicardium b. endocardium c. visceral pericardium d. both A and C above