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Multiple Choice
Which of the following correctly lists the connective tissue layers of a skeletal muscle from outermost to innermost?
A
Perimysium, epimysium, endomysium
B
Perimysium, endomysium, epimysium
C
Endomysium, perimysium, epimysium
D
Epimysium, perimysium, endomysium
Verified step by step guidance
1
Understand the structure of skeletal muscle: Skeletal muscle is organized into layers of connective tissue that provide support, protection, and a framework for muscle fibers. These layers are epimysium, perimysium, and endomysium.
Define each connective tissue layer: The epimysium is the outermost layer that surrounds the entire muscle. The perimysium is the middle layer that surrounds bundles of muscle fibers called fascicles. The endomysium is the innermost layer that surrounds individual muscle fibers.
Visualize the arrangement: Picture the skeletal muscle as a hierarchy of structures. The epimysium wraps the entire muscle, the perimysium wraps groups of muscle fibers (fascicles), and the endomysium wraps individual muscle fibers.
Compare the options provided: Analyze each option to determine which correctly lists the connective tissue layers from outermost to innermost. The correct sequence is epimysium (outermost), perimysium (middle), and endomysium (innermost).
Confirm the correct answer: Based on the definitions and arrangement, the correct answer is 'Epimysium, perimysium, endomysium.' This matches the hierarchical structure of skeletal muscle connective tissue layers.