The Frozen Contraction of Muscle Cells Called Rigor Mortis Occurs

question 46

Multiple Choice

The frozen contraction of muscle cells called rigor mortis occurs after death because ____.

• A) ions are not available in the cytoplasm of muscle cells
• B) tropomyosin breaks down quickly
• C) crossbridges become very rigid structures
• D) ATP production stops
• E) muscle cells are flooded with neurotransmitters

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Definitions:

Nulli-

A prefix that denotes none or without, often used in medical terms to denote the absence of certain experiences or conditions.

Concentrate

To increase the strength or proportion of a substance by reducing its volume, typically by evaporation or by removing water.

Infrastructure

The fundamental physical and organizational structures and facilities (e.g., buildings, roads, power supplies) needed for the operation of a society or enterprise.

Extraocular

Outside the eyeball, often relating to the muscles that control the movements of the eye.