When There Is a Resistance to the Movement Produced by a Given

question 38

Multiple Choice

When there is a resistance to the movement produced by a given limb muscle,

• A) gamma motor neurons are inhibited by higher brain centers.
• B) there is a decrease in the amount of force generated by extrafusal muscle fibers.
• C) the muscle involved in the movement immediately shortens when stimulated.
• D) intrafusal fibers receive fewer action potentials from the gamma motor neurons.
• E) muscle tone is increased and more motor units are recruited to the contraction.

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Definitions:

Adrenal Glands

Small, triangular glands located on top of the kidneys; they produce hormones that help regulate metabolism, immune system, blood pressure, and stress responses.

Gonads

The primary reproductive organs, ovaries in females and testes in males, producing gametes and sex hormones.

Blood Cells

The cells that circulate in the blood, including red blood cells, white blood cells, and platelets.

Cardiovascular

Pertaining to the heart and blood vessels, and the circulation of blood throughout the body.