Question

Differentiate between striated, unstriated and cardiac muscles

Answer 1

★ Striated Muscle...✒

• They show alternate light and dark bands (striations) when they are stained appropriately.

• They are responsible for bringing about voluntary movements (skeletal muscles of the limbs)

• Their cells are elongated, cylindrical and unbranched.

• The cells are multinucleate (having many nuclei).

★ Unstriated Muscle...✒

• They do not show any light and dark bands (striations) when they are stained

• They are involuntary in action. E.g. Walls of tubular organs like ureters, alimentary canal, bronchi of the lungs, blood vessels, etc.

• Their cells are long but spindle-shaped and unbranched

• The cells are uninucleate.

★ Cardiac Muscle...✒

• They show striations when they are stain

• They are involuntary in their function (rhythmic contraction and relaxation of heart)

• Heart muscle cells are cylindrical and branched.

• The cells are uninucleate.

Answer 2

Answer:

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