The type of muscle that is found in blood vessel walls is __________ muscle
A. skeletal
B. cardiac
C. smooth
C
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Most postganglionic fibers of the sympathetic nervous system secrete the neurotransmitter __________.
Fill in the blank(s) with the appropriate word(s).
Production of __________ cells, which doubles or triples in pregnancy, suppress maternal cytotoxic T cells that might target the fetus
Fill in the blank(s) with correct word
Which two types of secretory cells make up the salivary glands?
A) cuboidal epithelial cells and ciliated columnar cells B) goblet cells and squamous epithelial cells C) parietal cells and glial cells D) serous cells and mucous cells
The pancreas and liver are referred to as 'accessory' organs because
A. food does not pass through them. B. they do not produce digestive enzymes. C. they are not needed for digestion. D. All apply.