Which type of descending motor pathway conveys nerve impulses that originate in the cerebral cortex and are destined to cause precise, voluntary movements of skeletal muscles?
a) Indirect pathway
b) Direct pathway
c) Reflex arc
d) Somatic arc
e) Muscle spindle
b
Anatomy & Physiology
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A posterior and anterior root of each spinal segment unite to form a
A) cervical enlargement. B) lumbar enlargement. C) spinal nerve. D) spinal meninx. E) spinal ganglion.
Anatomy & Physiology
Action potentials are generated by the opening of ________ gated channels and they occur on the ________.
A. chemically, dendrite B. voltage-, dendrite C. voltage-, axon D. chemically, axon
Anatomy & Physiology
Which bones form the floor of the eye orbits and extend inferiorly to form the upper jaw?
A) maxillary B) nasal C) zygomatic D) lacrimal
Anatomy & Physiology
Fats should provide no more than what percentage of a person's daily caloric intake??
A) ?10 percent B) ?20 percent C) ?30 percent D) ?40 percent
Anatomy & Physiology