Which Testicular Cells Help Deliver Sperm to the Epididymis by Contracting

question 44

Multiple Choice

Which testicular cells help deliver sperm to the epididymis by contracting rhythmically?

• A) interstitial
• B) type A spermatocytes
• C) sustentocytes
• D) myoid

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Definitions:

Lag Phase

One of the three phases of muscle contraction; time between the application of the stimulus and the beginning of muscular contraction; also called latent phase.

Muscle Twitch

Contraction of a whole muscle in response to a stimulus that causes an action potential in one or more muscle fibers.

Sarcoplasmic Reticulum

The Sarcoplasmic Reticulum is an organelle in muscle cells storing calcium ions, essential for muscle contraction and relaxation.

Tetanus

A bacterial infection characterized by muscle spasms, often starting in the jaw, due to toxins produced by Clostridium tetani.