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nmdcat.online July 28, 2026

A histologist observes muscle fibers that branch and are joined end to end by specialized junctions. These fibers belong to:

A. Skeletal muscle
B. Smooth muscle
C. Cardiac muscle
✓
D. Dense connective tissue

📝 Explanation

Correct: Branched fibers connected by intercalated discs are unique to cardiac muscle. A: Skeletal fibers are long and unbranched. B: Smooth muscle is spindle-shaped. D: Not muscle tissue. Concept: Histology of cardiac muscle.

📖 Additional Information

  • Skeletal muscle
  • Smooth muscle
  • Cardiac muscle
  • Dense connective tissue

Correct: Branched fibers connected by intercalated discs are unique to cardiac muscle. A: Skeletal fibers are long and unbranched. B: Smooth muscle is spindle-shaped. D: Not muscle tissue. Concept: Histology of cardiac muscle.

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