Which Four-Step Process Correctly Describes Muscle Contraction

question 14

Multiple Choice

Which four-step process correctly describes muscle contraction?

• A)Coupling, contraction, relaxation, excitation
• B)Contraction, relaxation, excitation, coupling
• C)Relaxation, excitation, coupling, contraction
• D)Excitation, coupling, contraction, relaxation

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Definitions:

Anterior Air Sacs

Air-filled structures part of the avian respiratory system, located near the front of the bird's body, involved in the storage and movement of air through the lungs.

Spiracles

Openings on the body of some animals, such as insects and some fishes, for breathing.

Fick's Law

A principle in physics and chemistry describing the rate of diffusion of a substance across a space, influenced by the concentration gradient, surface area, and other factors.

Partial Pressure

The pressure exerted by a single type of gas in a mixture of gases, often used in calculations involving gas laws and respiration.