The main region of the brain that adjusts sympathetic output to the arterioles is the cardiovascular control center in the __________ of the brain stem
Fill in the blank(s) with correct word
medulla
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Meiosis is necessary because
A. otherwise the fertilized ovum will have too much genetic material. B. otherwise reproduction would have to be asexual. C. otherwise the fertilized ovum will have too little genetic material. D. otherwise too many mutations will occur.
The portion of the nasal cavity contained within the flexible tissues of the external nose is the
A) nasopharynx. B) vestibule. C) internal chamber. D) conchae. E) nasal septum.
Preganglionic fibers leave the CNS and then synapse on
A) postganglionic fibers. B) visceral reflex responses. C) motor neurons. D) ganglionic neurons. E) sensory neuron neurons.
Which of the following movements is a good example of abduction?
A) opening the mouth B) turning the hand palm upward C) extreme backward bending of the head D) moving the hand toward the shoulder E) spreading the fingers