The Repeating Unit of a Skeletal Muscle Fiber Is the

question 25

Multiple Choice

The repeating unit of a skeletal muscle fiber is the

• A) sarcolemma.
• B) sarcomere.
• C) sarcoplasmic reticulum.
• D) myofibril.
• E) myofilament.

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Definitions:

Transient Ischemic Attack

A brief episode of neurological dysfunction caused by a temporary decrease in blood supply to part of the brain, often a warning sign for future strokes.

Myocardial Infarction

A medical condition commonly known as a heart attack, resulting from the interruption of blood flow to the heart.

Atrial Fibrillation

A quivering or irregular heartbeat (arrhythmia) that can lead to blood clots, stroke, heart failure, and other heart-related complications.

Transient Ischemic Attack

Often called a mini-stroke, it's a brief episode of neurological dysfunction caused by loss of blood flow to the brain, spinal cord, or retina, without lasting damage.