1.

Differentiate between striated, smooth and cardiac muscles.

Answer»
S.No.Striated MusclesSmooth MusclesCardiac Muscles
(i)These are present in the limbs, tongue, pharynx, beginning of oesophagus.These are present in wall of visceral organs and also in hair muscles.They form myocardium of heart.
(ii)These are arranged in bundles.They act as sheets in visceral organsThey form continuous network in the body
(iii)These are long cylindrical with blunt ends.They are short, spindle shaped with pointed ends.They are short cylindrical with flat ends.
(iv)These are multinucleated. Nuclei are peripheral.They are uninucleated. Nucleus is central.They are uninucleated. Nucleus is central.
(v)Presence of dark and light bands.No bands are present.Bands present in them
(vi)These are unbranched.They are unbranched.They unbranched
(vii)Contract rapidly for short period as soon as get fatigued.They contract slowly for long period and do not get fatigued.They contract rapidly, rhythmically and never get fatigued.


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