Select the Best Description of the Ciliary Ganglia

question 17

Multiple Choice

Select the best description of the ciliary ganglia:

• A) carry parasympathetic impulses to terminal ganglia in most organs of the ventral cavity
• B) send impulses via parasympathetic postganglionic axons to the parotid glands
• C) receive sympathetic preganglionic axons via thoracic splanchnic nerves
• D) innervate the smooth muscle of the eyeball via parasympathetic axons
• E) send postganglionic parasympathetic axons to the lacrimal glands

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Definitions:

Muscle Contraction

The process where muscle fibers shorten or lengthen to produce movement or maintain posture.

Contraction Cycle

The series of events in muscle fibers that lead to shortening and generating force, crucial for movement.

Myofibril

A basic rod-like unit of a muscle cell, composed of long proteins including actin, myosin, and others, responsible for muscle contraction and relaxation.

Muscle Fiber

A single muscle cell, typically cylindrical in shape, that contracts in response to stimulation and is essential for producing bodily movements.