Multiple Choice
Which muscle type is correctly matched to its location?
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4. Tissues & Histology
Types of Muscle Tissue
Multiple Choice
Which type of muscle fibers are resistant to fatigue because they rely on aerobic metabolism?
A
Fast-twitch fibers
B
Cardiac muscle fibers
C
Intermediate fibers
D
Slow-twitch fibers
Verified step by step guidance1
Understand the different types of muscle fibers: Slow-twitch fibers, Fast-twitch fibers, Intermediate fibers, and Cardiac muscle fibers.
Recognize that slow-twitch fibers are also known as Type I fibers and are designed for endurance and continuous, extended muscle contractions.
Identify that slow-twitch fibers have a high density of mitochondria, which are the powerhouses of the cell, allowing them to efficiently use oxygen to generate ATP through aerobic metabolism.
Note that aerobic metabolism is a process that requires oxygen and is more efficient for long-duration activities, making slow-twitch fibers resistant to fatigue.
Conclude that because slow-twitch fibers rely on aerobic metabolism, they are more resistant to fatigue compared to other types of muscle fibers.
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