Textbook Question
The smooth muscle type found in the walls of digestive and urinary system organs and that exhibits gap junctions and pacemaker cells is:
a. Multi unit
b. Unitary
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9. Muscle Tissue
Structure of a Skeletal Muscle
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
A fascicle is a bundle of:
A
Epimysium.
B
Muscle Fibers.
C
Myofilaments.
D
Muscles.
Verified step by step guidance1
Begin by understanding the structure of a muscle. Muscles are composed of bundles known as fascicles.
Each fascicle is a bundle of muscle fibers. Muscle fibers are the individual muscle cells that make up the fascicle.
Muscle fibers themselves contain smaller structures called myofibrils, which are composed of myofilaments.
The epimysium is a connective tissue layer that surrounds the entire muscle, not the fascicle.
Therefore, the correct answer is that a fascicle is a bundle of muscle fibers, which are the basic units within the fascicle.
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