The Accessory Nerve

question 146

Multiple Choice

The accessory nerve

• A) has fibers that join the vagus nerve.
• B) has both a cranial and a spinal component.
• C) provides innervation to the trapezius and sternocleidomastoid muscles.
• D) is cranial nerve XI.
• E) All of the choices are correct.

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Definitions:

Set Point

The point at which an individual’s “weight thermostat” is supposedly set. When the body falls below this weight, an increase in hunger and a lowered metabolic rate may act to restore the lost weight.

Body Weight

The quantitative measurement of the mass or heaviness of an individual's body, often used as an indicator of health status.

Lateral Hypothalamus

A region of the brain that plays a key role in hunger regulation and the initiation of eating behaviors as part of the hypothalamus.

Basal Metabolic Rate

The body's resting rate of energy expenditure.