What type of tissue are neurons?
a. epithelial tissue
b. connective tissue
c. muscle tissue
d. nervous tissue
d. nervous tissue
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When epinephrine combines with alpha adrenergic receptors on smooth muscle in intestinal blood vessels, the blood vessels ________; however, when epinephrine binds to beta-2 adrenergic receptors on certain skeletal muscle blood vessels, the vessels ________.
Fill in the blank(s) with the appropriate word(s).
Which condition occurs when the vertebrae fail to develop a complete neural arch and part of the spinal cord is exposed?
A. Anencephaly B. Microcephaly C. Multiple sclerosis D. Spina bifida E. Spinal meningitis
As part of which nervous system do preganglionic neurons synapse with postganglionic neurons going to many different efferent organs?
a. parasympathetic nervous system b. sympathetic nervous system c. both the parasympathetic and sympathetic nervous systems
A burn classified as partial thickness could be ________.
A. second or third degree B. first or second degree C. thin or deep D. epidermal or dermal