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Multiple Choice
Which type of muscle tissue contains intercalated discs that electrically and mechanically connect adjacent cells?
A
Skeletal muscle
B
Dense regular connective tissue
C
Cardiac muscle
D
Smooth muscle
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Verified step by step guidance
1
Step 1: Understand the types of muscle tissue: skeletal, cardiac, and smooth muscle, each with distinct structural and functional characteristics.
Step 2: Recall that intercalated discs are specialized structures found only in cardiac muscle tissue, which help connect adjacent cardiac muscle cells both electrically and mechanically.
Step 3: Recognize that skeletal muscle is characterized by striations and voluntary control but does not have intercalated discs.
Step 4: Note that smooth muscle lacks striations and intercalated discs and is found in walls of hollow organs.
Step 5: Conclude that the presence of intercalated discs is a defining feature of cardiac muscle, enabling synchronized contraction of the heart.