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Multiple Choice
Which of the following is not a characteristic of cardiac muscle cells?
A
Presence of intercalated discs
B
Striated appearance
C
Single nucleus per cell
D
Voluntary control
Verified step by step guidance
1
Understand the characteristics of cardiac muscle cells. Cardiac muscle cells are specialized cells found in the heart that have unique features distinguishing them from other muscle types.
Recognize that cardiac muscle cells have intercalated discs. These structures are crucial for the synchronized contraction of the heart muscle, allowing for efficient heart function.
Identify the striated appearance of cardiac muscle cells. Like skeletal muscle, cardiac muscle cells have a striated pattern due to the arrangement of actin and myosin filaments.
Note that cardiac muscle cells typically have a single nucleus per cell. This is a common feature that differentiates them from skeletal muscle cells, which are multinucleated.
Understand that cardiac muscle cells are under involuntary control. Unlike skeletal muscles, which are voluntary, cardiac muscles contract without conscious control, making 'voluntary control' not a characteristic of cardiac muscle cells.