Lack of sunlight will directly affect the formation of vitamin D. This implies that the specific cell type required for vitamin D synthesis using sunlight energy is the ___________.
a) keratinocyte
b) chondroblast
c) intestinal epithelial cell
d) osteocyte
Answer: a) keratinocyte
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Blood vessels that absorb strong pressure pulses contain more of this type of tissue
A) collagen fibers B) endothelium C) smooth muscle and elastic
This type of fascicle arrangement has the fascicles spread over a broad area and converges at a thick central tendon
a) triangular b) pennate c) circular d) fusiform e) multipennate
The _________ of a muscle refers to the identity of the nerve that stimulates it.
Fill in the blank(s) with the appropriate word(s).
___________ targets osteoclasts when blood calcium levels are too low, thus causing an increase in the concentration of calcium in the blood?
a. Aldosterone b. Thyroid hormone c. Cortisol d. Parathyroid hormone e. Calcitonin