The Function of Upper Motor Neurons Is to

question 134

Multiple Choice

The function of upper motor neurons is to

• A) directly excite skeletal muscle cells.
• B) excite or inhibit skeletal muscle cells.
• C) excite or inhibit lower motor neurons.
• D) excite motor portions of the thalamus.
• E) excite or inhibit motor portions of the cerebral cortex.

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Definitions:

Aerobic Exercise

Physical exercise of low to high intensity that depends primarily on the aerobic energy-generating process, such as running or cycling.

Lean Body Weight

The weight of the body after the exclusion of body fat; often used in calculating drug dosages and nutritional needs.

Body Fat

The portion of the human body that consists of adipose tissue, serving as energy storage and insulation.

Isotonic Exercise

Exercise that requires the contraction of muscles and the movement of joints, as in weight lifting.