When Your Body Temperature Rises on a Hot Day, the Neural

question 17

Multiple Choice

When your body temperature rises on a hot day, the neural and hormonal mechanisms activate sweating. Evaporation of sweat leads to cooling of the body surface. This is an example of ________.

• A) positive feedback regulation
• B) negative feedback regulation
• C) chemical cycling
• D) emergent properties

---

Definitions:

Sarcolemma

The fine transparent tubular sheath which envelops the fibers of skeletal muscles.

Sarcoplasmic Reticulum

A specialized type of endoplasmic reticulum in muscle cells that stores and releases calcium ions.

T Tubules

Tubular extensions of the cell membrane that penetrate into the center of skeletal and cardiac muscle cells, facilitating the transmission of electrical signals.

Sarcolemma

The fine transparent tubular sheath that envelops the fibers of skeletal muscles.