Intercalated discs in cardiac muscle are important mainly...

Intercalated discs in cardiac muscle are important mainly because they:

medium

AStore calcium for muscle contraction

Provide strong mechanical attachment and electrical coupling between cells

CSecrete acetylcholine onto skeletal muscles

DMake cardiac muscle non-striated

EPrevent any ions from moving between cardiac cells

Explanation

Intercalated discs include anchoring junctions (for strength) and gap junctions (for rapid electrical spread), helping the heart contract in a coordinated way.

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Back to Deck — Muscle Contraction, Muscle Tissue & Tendons

Source: entermedschool.org

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