Is a Surgical Procedure in Which the Vas Deferens Are

question 15

Multiple Choice

is a surgical procedure in which the vas deferens are severed,and then tied.How would this cause sterility?

• A)Sperm cannot be produced by meiosis.
• B)Sperm cannot be produced by mitosis.
• C)Sperm cannot move to the urethra.
• D)A man cannot get an erection.
• E)The testes stop producing testosteronE.

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Definitions:

Sodium

A chemical element (Na) that is essential for life, involved in osmoregulation and nerve function.

All-Or-None Law

The principle that the strength of a response of a nerve cell or muscle fiber is not dependent upon the strength of the stimulus. If a stimulus is above a certain threshold, a nerve or muscle fiber will fire.

Action Potential

A momentary change in electrical potential on the surface of a cell, especially a nerve or muscle cell, that occurs when it is stimulated, leading to the transmission of an electrical impulse.

Neurotransmitters

Chemical messengers that transmit signals across a chemical synapse, from one neuron (nerve cell) to another, influencing a variety of physiological functions and behaviors.