Which of the following is NOT a process of respiration?
A. Systemic respiration
B. Ventilation
C. Transport of blood gases in the blood
D. Pulmonary respiration
E. Voice production
Answer: E
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Damaged nerve fibers in the CNS cannot regenerate due to an absence of which of the following?
A. An axolemma B. An epineurium C. An endoneurium D. A neuroglia E. A myelin sheath
Define optic radiation
A) Optic radiation refers to the bundles of commissural fibers linking the visual cortex on the left side of the cerebrum with the visual cortex on the right side of the cerebrum. B) Optic radiation refers to the bundles of association fibers linking the visual cortex with the visual association area on the same side of the cerebral cortex. C) Optic radiation refers to bundles of projection fibers linking the lateral geniculate bodies of the thalamus with the visual cortex in each cerebral hemisphere. D) Optic radiation refers to bundles of projection fibers linking the basal nuclei of the cerebrum with the visual association areas. E) Optic radiation refers to bundles of association fibers linking the visual cortex with the visual association area in each cerebral hemisphere.
A nerve impulse travels fastest along ________ axons of ______ diameter
A. myelinated, small B. unmyelinated, small C. myelinated, large D. unmyelinated, large
Tissue responses to neurotransmitters
A) are always excitatory. B) vary depending upon the response of the membrane receptor to the presence of the neurotransmitter. C) result from the formation of second messengers. D) are always inhibitory. E) result from opening ion channels.