One of the Major Differences Between Skeletal Muscle and Cardiac

question 42

Multiple Choice

One of the major differences between skeletal muscle and cardiac muscle is that cardiac muscle

• A)is striated.
• B)has myosin and actin.
• C)lacks triads.
• D)needs Ca²⁺ to contract.
• E)has a very large sarcoplasmic reticulum.

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Definitions:

Paradoxical Sleep

Another term for REM (Rapid Eye Movement) sleep, characterized by active brain patterns and vivid dreaming.

Slow-Wave Sleep

Slow-Wave Sleep refers to the deep sleep stage characterized by low frequency, high amplitude delta waves, important for memory consolidation and recovery.

REM Sleep

A phase of sleep characterized by rapid eye movement, during which vivid dreams commonly occur.

Hypnagogic Sensations

Experiences at the onset of sleep, including visual, auditory, or tactile hallucinations that occur in the transition from wakefulness to sleep.