Home › CBSE Class 11 › Biology › Structural Organisation in Animals › The communication junctions of cardiac muscle ar…
The 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: NCERT Class 11 Biology, Ch 7 'Structural Organisation in Animals'_
Related questions
Which muscle fibres taper at both ends and show no striations?Muscle fibres are composed of numerous fine fibrils called:Blood is a connective tissue that is:Blood cells are produced in the:The bone matrix is rich in collagen fibres and:Bone cells are present in spaces called:Bone cells are called:The intercellular material of cartilage is solid, pliable and resists: