Which of the Following Statements About Skeletal Muscle Contraction Is

question 31

Multiple Choice

Which of the following statements about skeletal muscle contraction is FALSE?

• A)When a muscle cell receives a signal from the nervous system, voltage-gated channels open in the T-tubule membrane.
• B)The changes in voltage across the plasma membrane that occur when a muscle cell receives a signal from the nervous system cause an influx of Ca²⁺ into the sarcoplasmic reticulum, triggering a muscle contraction.
• C)A change in the conformation of troponin leads to changes in tropomyosin such that it no longer blocks the binding of myosin heads to the actin filament.
• D)During muscle contraction, the Z discs move closer together as the myosin heads walk toward the plus ends of the actin filaments.

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Definitions:

Transgender Children

Children whose gender identity differs from the sex they were assigned at birth.

Gender Schematic

A cognitive framework that organizes information based on gender-related associations, influencing how individuals process and interact with their environment.

Androgynous

Describes someone who does not fit neatly into the conventional distinctions of male or female gender roles, but instead exhibits or feels a balance of both.

Sexual Orientation

An enduring pattern of romantic or sexual attraction to persons of the opposite sex or gender, the same sex or gender, or to both sexes or more than one gender.