The forceful expulsion of semen from the urethra caused by contraction of smooth muscle in the urethra and skeletal muscle surrounding the base of the penis is called ________.

A. physiological contracture
B. orgasm
C. neutralization
D. ejaculation
E. emission


Answer: D

Anatomy & Physiology

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____________________ is the rhythmic, oscillating contraction of skeletal muscles, and this is a heat-_______ mechanism

Fill in the blank(s) with correct word

Anatomy & Physiology

Voluntary movements are carried out by the contraction of

A) nonstriated muscle. B) all types of muscle. C) smooth muscle. D) skeletal muscle. E) cardiac muscle.

Anatomy & Physiology

Except for ____________________, cells within connective tissue produce specific structural molecules that they release into extracellular spaces

Fill in the blank(s) with correct word

Anatomy & Physiology

The symptoms of ________ are redness, swelling, heat, and pain.

A. regeneration B. inflammation C. organization D. scarring

Anatomy & Physiology