The Middle Layer of the Heart Is The

question 37

Multiple Choice

The middle layer of the heart is the:

• A) endocardium.
• B) epicardium.
• C) myocardium.
• D) pericardium.

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Definitions:

Myelin

A fatty substance that surrounds and insulates the axons of many neurons, enhancing the speed of electrical impulses.

Pudendal Nerve

A nerve in the pelvic region that carries sensory and motor information to and from the genitalia and surrounding areas.

Spinal Nerves

Nerves that branch out from the spinal cord, transmitting motor, sensory, and autonomic messages between the body and the spinal cord.

Cranial Nerves

Twelve pairs of nerves that emerge directly from the brain, not the spinal cord, serving head and neck functions.