alleryThe communication junctions of cardiac muscle are called:
AInterlocking discs
BIntermediate discs
CInterrupted discs
DIntercalated discs
Answer & Solution
Correct answer: D. Intercalated discs
1. Cardiac muscle is present only in the heart.
2. Communication junctions, the intercalated discs, allow the cells to contract as a unit.
3. So the correct answer is intercalated discs.
_Source: syllabus Biology, Ch 7 'Structural Organisation in Animals'_
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