The vertebral arch is formed by the pedicles and the

A) transverse spinous processes.
B) dorsal spinous processes.
C) laminae.
D) costal facets.
E) intervertebral disc.


C

Anatomy & Physiology

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Membrane proteins that bind to signals by which cells communicate are called ________

A) receptors B) cell-identity markers C) enzymes D) carriers E) cell-adhesion molecules

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Autonomic _________ are collections of sympathetic postganglionic axons and parasympathetic preganglionic axons, as well as some visceral sensory axons

Fill in the blank with correct word.

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Which of the following is involved in muscle relaxation?

a. Acetylcholinesterase removes ACh and the muscle cell returns to resting potential. b. Ca2+ is actively taken up by the lateral sacs when there is no longer an action potential. c. The cross bridges pull the filaments back to their original resting positions. d. Both a and b e. Both b and c

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Which body region is controlled by the largest area of the motor cortex?

A. Trunk B. Toes C. Neck D. Shoulder E. Fingers

Anatomy & Physiology