The ________ Muscle Is the Most Active Muscle of the Pectoral

question 50

Multiple Choice

The ________ muscle is the most active muscle of the pectoral girdle because it can move the scapula in nearly any direction, depending on the active region and the state of other muscles.

• A) deltoid
• B) levator scapulae
• C) rhomboid major
• D) trapezius
• E) latissimus dorsi

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Definitions:

Observational Learning

A learning process that occurs through observing the behavior of others and the outcomes of those behaviors.

Operant Conditioning

A method of learning that employs rewards and punishments for behavior, which was developed by B.F. Skinner.

Learned Helplessness

A condition in which a person suffers from a sense of powerlessness, arising from a traumatic event or persistent failure to succeed, theorized to lead to depression and other mental illnesses.

Psychopathology

The scientific study of mental disorders, including their symptoms, etiology (causes), and treatment.