Multiple Choice
In skeletal muscle physiology, what is the name of the cell membrane of a muscle fiber?
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15. Cytoskeleton and Cell Movement
Muscle Contractions
Multiple Choice
In muscle tissue, which type of muscle cell typically has more than one nucleus per cell?
A
Myofibroblasts
B
Smooth muscle cells
C
Skeletal muscle fibers
D
Cardiac muscle cells
Verified step by step guidance1
Step 1: Understand the types of muscle tissue and their cellular characteristics. There are three main types: skeletal, cardiac, and smooth muscle tissues.
Step 2: Recall that skeletal muscle fibers are long, cylindrical cells that are multinucleated, meaning they contain more than one nucleus per cell. This is due to the fusion of multiple precursor cells called myoblasts during development.
Step 3: Contrast this with smooth muscle cells, which are spindle-shaped and typically have a single nucleus per cell.
Step 4: Cardiac muscle cells are branched and usually have one or two nuclei per cell, but not multiple nuclei like skeletal muscle fibers.
Step 5: Myofibroblasts are not a type of muscle fiber but rather specialized cells involved in wound healing and tissue repair, and they generally have a single nucleus.
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