Skeletal muscles are voluntarily controlled by the
A. central nervous system
B. somatic nervous system
C. parasympathetic nervous system
D. sympathetic nervous system
The word anencephaly means：
A. below the cerebrum
B. absence of a cerebellum
C. absence of a brain
D. membrane of a brain
The cells involved in most nervous system tumors are called
A. motor neurons
B. sensory neurons
C. interneurons
D. neuroglia
The “fight-or-flight” response is promoted by the
A. sympathetic nervous system
B. parasympathetic nervous system
C. somatic nervous system
D. reflex arc
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