Sweating and Shivering Are Necessary Adaptations Because

question 1

Multiple Choice

Sweating and shivering are necessary adaptations because

• A) all parts of the body must remain at normal body temperature to maintain life.
• B) the health of vital organs requires a near-normal temperature, and metabolic rate fluctuates with changes in the environment.
• C) to ensure that total metabolic rate remains constant, the body generates or releases heat as needed.
• D) proteins rapidly denature when tissue temperature drops below 98.5°F.

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Definitions:

Right Atrium

The right upper chamber of the heart that receives deoxygenated blood from the body through the venae cavae and pumps it into the right ventricle.

Systole

The phase of the heart cycle during which the heart muscles contract and pump blood into the arteries.

Contraction Phase

The period during a muscle contraction when muscle fibers shorten and tension increases, typically measured in an isotonic contraction.

Femoral Vein

A major vein located in the thigh that carries blood from the lower extremities back to the heart.