Pacemakers Function by Providing an Electrical Stimulus When

question 96

Multiple Choice

Pacemakers function by providing an electrical stimulus when

• A)the heart is experiencing periods of low exertion.
• B)the heart is no longer capable of beating.
• C)the heart's own stimulus is too fast to provide adequate cardiac output.
• D)the heart is unable to generate its own stimulus.

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Definitions:

Vas Deferens

A long, muscular tube that transports mature sperm from the testes to the urethra in preparation for ejaculation.

Bulbourethral Gland

A gland in males that secretes a fluid into the urethra to lubricate and neutralize acidity before ejaculation.

Reverse Transcriptase

An enzyme used by some viruses to synthesize DNA from RNA, playing a key role in the replication cycle of retroviruses.

Viral RNA

The genetic material of certain viruses, composed of ribonucleic acid (RNA), which enables them to replicate and infect host cells.