During Contraction of Skeletal Muscle Fibers, the

question 26

Multiple Choice

During contraction of skeletal muscle fibers, the

• A) contractile proteins contract.
• B) thin filaments slide inward toward the A band's center as a result of cycles of cross-bridge binding and bending.
• C) thick and thin filaments become tightly coiled, thus shortening the sarcomere.
• D) I bands slide in between the A bands.
• E) lateral sacs of the sarcoplasmic reticulum shrink, pulling the Z lines closer together.

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Definitions:

Loss Aversion

A cognitive bias reflecting the tendency for people to prefer avoiding losses to acquiring equivalent gains, suggesting that losses are perceived as more severe than gains.

Status Quo Bias

A cognitive bias that represents a preference for the current state of affairs, leading individuals to resist change.

Marginal Cost

The expense associated with creating an extra unit of a product or service.

Marginal Benefit

The further satisfaction or value an individual gains from consuming an extra unit of a certain product or service.