Pectoralis Major Originates on the and Inserts in the Intertubercular

question 28

Multiple Choice

Pectoralis major originates on the and inserts in the intertubercular sulcus of the humerus.

• A) the clavicle, acromion, and spine of the scapula
• B) anterior surface of the scapula
• C) lateral aspect of ribs 2 through 5
• D) clavicle and sternum

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Definitions:

Oral Stage

A stage in Freud's psychosexual development theory, occurring in the first year of life, where pleasure is centered on oral activities such as feeding and sucking.

Reaction Formation

A defense mechanism where an individual acts in a manner opposite to their actual feelings or impulses.

Psychic Energy

A concept in psychoanalysis that refers to the force or influence behind human behaviors, emotions, and thoughts, often tied to unconscious processes.

Structural Theory

A theory in psychology and psychoanalysis that divides the psyche into three distinct parts (id, ego, and superego), each with its own roles and dynamics.