When a Person Is Standing with Their Elbow Bent, and Someone

question 51

Multiple Choice

When a person is standing with their elbow bent, and someone grabs their arm and yanks, the biceps will contract and the triceps relax in order to produce a reflexive pull back against the movement. How is this muscle control achieved?

• A) spinal interneurons release excitatory neurotransmitters on the motor neurons of effector muscles
• B) sensory neurons release excitatory neurotransmitters on the motor neurons of effector muscles
• C) sensory neurons release inhibitory neurotransmitters on the motor neurons of antagonist muscles
• D) All of the choices are correct.

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Definitions:

Educational Psychologists

Professionals who study how people learn and retain knowledge, often focusing on developing educational materials and practices.

Mental Abilities

The cognitive functions and processes related to understanding, reasoning, problem-solving, and decision-making.

Aptitude

A natural ability or talent for learning or skill in a particular area.

Cultural Psychologists

Researchers who study how cultural practices shape psychological processes and vice versa.