The Pectoralis Major Muscle Inserts on the Greater Tubercle of the Humerus

question 80

Multiple Choice

The pectoralis major muscle inserts on the greater tubercle of the humerus. When it contracts, it produces

• A) flexion.
• B) medial rotation.
• C) adduction.
• D) all of the above
• E) none of the above

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Definitions:

Menarche

The first occurrence of menstruation in a female, marking the onset of reproductive capability.

Menopause

Permanent cessation of the menstrual cycle.

Climacteric

A phase of aging in both sexes marked by reduced fertility and the decrease of reproductive hormones.

Genetic Variation

The diversity in gene frequencies within a population, which contributes to differences among individuals.