Question

multiple choice question
cardiac muscle cells can contract as a unit because adjacent cells are connected by

o conductive fibers
o syncytial fibers
o intercalated discs

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Explanation:

Cardiac muscle cells are able to contract as a unit due to intercalated discs which contain gap - junctions and desmosomes. Gap - junctions allow for the rapid spread of electrical signals between cells, enabling coordinated contraction. Conductive fibers are related to the conduction system of the heart but not the connection between individual muscle cells for unitary contraction. Syncytial fibers is not the correct term for this connection.

Answer:

O intercalated discs