Asked by Valeria Contreras on May 03, 2024
Verified
Jack broke his right leg in a football accident. He has had a cast on for about 2 months. Now that the cast is off, Jack has found that his right calf is significantly smaller than his left calf. Why is this?
A) The unused right calf atrophied.
B) When you break a bone, the attached muscle is also torn. Therefore, it gets smaller.
C) Calf muscles are composed of fast-twitch fibers and tend to grow larger over time.
D) The left calf probably hypertrophied in compensating for the broken leg during walking.
E) This is highly unusual and suggests some type of muscle disease.
Atrophied
Refers to the partial or complete wasting away of a part of the body, typically as a result of degeneration of cells or lack of use.
Hypertrophied
Hypertrophied refers to an organ or tissue that has increased in size due to the enlargement of its cells, often in response to increased demand or stimulus.
Fast-Twitch Fibers
Muscle fibers that contract quickly and are used for short bursts of speed and power, but fatigue more rapidly than slow-twitch fibers.
- Detail the impact of muscle disuse and feeble contractions on muscular dimensions.
- Understand the processes and reasons behind muscle cramps.
Verified Answer
Learning Objectives
- Detail the impact of muscle disuse and feeble contractions on muscular dimensions.
- Understand the processes and reasons behind muscle cramps.
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