The Encephalization Quotient Relates a Mammalian Species

question 17

Multiple Choice

The encephalization quotient relates a mammalian species':

• A) number of gyri to number of sulci.
• B) actual brain size to the brain size of humans.
• C) actual brain size to its expected brain size.
• D) average brain weight to average body weight.

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Definitions:

Slow Fibers

Slow fibers are a type of muscle fiber that contract slowly and are stamina-oriented, relying on aerobic metabolism for energy, making them resistant to fatigue.

Fast Fibers

Muscle fibers characterized by quick contractions and a capacity for rapid, forceful movements but have lower endurance compared to slow fibers.

Excitation-Contraction Coupling

The physiological process that links muscle fiber excitation to muscle contraction, primarily in skeletal and cardiac muscles.

T Tubules

Extensions of the cell membrane that penetrate into the center of skeletal and cardiac muscle cells, aiding in the transmission of electrical impulses.