Which of These Structures Is the Smallest Unit of Contraction

question 158

Multiple Choice

Which of these structures is the smallest unit of contraction within a skeletal muscle

• A)a myofibril
• B)a muscle fibre
• C)a thin filament
• D)a sarcomere

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Definitions:

Fear

An unpleasant emotional state triggered by the perception of danger, real or imagined.

Positive Emotions

Emotions that are associated with happiness and well-being, including joy, gratitude, and love.

Need For Cognition

A psychological trait that describes an individual's preference for effortful cognitive activities, essentially enjoying thinking and problem-solving.

Promotion Focus

A motivational state where the primary goal is to achieve positive outcomes and realize aspirations.