The Acrosome Is an Enzyme-Filled Vesicle at the Tip of the Head

question 141

True/False

The acrosome is an enzyme-filled vesicle at the tip of the head of the spermatozoon that enables the sperm to penetrate the ovum.

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Definitions:

Vestibular

Related to the inner ear system responsible for balance and spatial orientation.

Fast Fibers

Sensory receptors in skin, muscles, organs, and membranes around both bones and joints; these myelinated fibers quickly convey intense sensory input to the brain, where it is perceived as sharp, immediate pain.

Slow Fibers

Sensory receptors in skin, muscles, organs, and membranes around both bones and joints; these unmyelinated fibers slowly convey intense sensory input to the brain, where it is perceived as chronic, dull, steady pain.

Throbbing Pain

A type of pain experience characterized by a pulsating or beating sensation, often associated with headaches or injuries.