Which of the following is not true of the crista ampullaris?
A. It is an organ of dynamic equilibrium.
B. It is located within a semicircular duct of the inner ear.
C. The cupula is the gelatinous cap over the hair cell cilia.
D. Its sensory information is carried on neurons of the cochlear nerve.
E. All of these are true of the crista ampullaris.
Answer: D
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The part of the peripheral nervous system that carries sensory information to the CNS is designated
A) motor. B) afferent. C) efferent. D) autonomic. E) somatic.
After axonal injury, regeneration in peripheral nerves is guided by ________
A) Schwann cells B) Wallerian cells C) Golgi organs D) dendrites
An inhaler used to treat airway constriction in asthma or allergy might contain a drug that
A) activates ?1 adrenergic receptors. B) activates ?2 adrenergic receptors. C) blocks muscarinic cholinergic receptors. D) activates ?1 or ?2 adrenergic receptors. E) activates ?2 adrenergic receptors or blocks muscarinic cholinergic receptors.
Nearly all the somatosensory input to the cerebrum passes by way of synapses in which region of the brain?
A) Epithalamus B) Hypothalamus C) Cerebellum D) Thalamus E) Reticular formation