Which of the Following Is TRUE with Regard to the Sliding

question 63

Multiple Choice

Which of the following is TRUE with regard to the sliding filament mechanism of muscle contraction?

• A) When a muscle fiber is contracting, the thin fibers are connected to the thick fibers.
• B) When actin pushes the Z discs farther apart, the muscle contracts.
• C) The muscle relaxes when calcium ions are released into the fluid surrounding the thick and thin filaments.
• D) The energy for contraction comes from the breakdown of actin into myosin.

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Definitions:

Lobes of the Brain

The regions of the cerebral cortex of the brain, divided into the frontal, parietal, occipital, and temporal lobes, each responsible for various functions.

Central Function

The primary or most important role played by a system, organization, or part of the body in its operation or contribution to overall objectives.

Truth Table

A mathematical table used to determine the validity of a proposition by listing all possible logical outcomes.

Symbolic Form

A representation of propositions or arguments using symbols and logical operators to express logical relations clearly and concisely.