Parasympathetic system dilates blood vessels going to this structure
a. sweat glands
b. brain
c. eye.
d. liver.
e. erectile tissues.
E
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A person who makes anti-B antibodies cannot safely accept any blood types in which erythrocytes display B antigens
Indicate whether the statement is true or false
The heart muscle is said to have automaticity, which means that ________
A) the nerves that innervate the heart cause the heart to beat automatically B) the heart has a built-in automatic nerve C) the heart muscle depolarizes and contracts spontaneously without external stimulation D) the heart muscle beats in a regular rhythm
Cholecystokinin is produced by endocrine cells of the
A. stomach. B. small intestine. C. pancreas. D. large intestine. E. liver.
The bones of the spine are examples of:
a. a short bone b. a long bone c. a flat bone d. an irregular bone