Question

Define - Sarcolemma, myofibrils, z-line,
action intercalated disc.
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Answer 1

Answer:

sarcolemma , myofibrils

Answer 2

The SARCOLEMMA is a specialized membrane which surrounds striated muscle fiber cells.

Any of the elongated contractile threads found in striated muscle cells is called MYOFIBRILS.

any of the dark thin bands across a striated muscle fiber that mark the junction of actin filaments in adjacent sarcomeres is known as Z-LINE.

INTERCALATED DISCS are microscopic identifying features of cardiac muscle. Cardiac muscle consists of individual heart muscle cells (cardiomyocytes) connected by intercalated discs to work as a single functional organ or syncytium. ... Intercalated discs support synchronized contraction of cardiac tissue.