(40 points) Explain the difference between the types of Muscular Tissue
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about muscular tissue
muscular tissue is composed of elongated cells called muscle fibre. this tissue allows movements in the body by contraction and relation. it contains special contractile protein.
muscular tissues are 3 types
1. smooth: the cells of smooth muscles are spindle shaped and each has one nucleus. smooth muscles are found in those organs where involuntary movement is possible.2. cardiac: the cells of cardiac muscles are in the form of branches fibres. these are found in the heart. cardiac muscles can move continuously throughout the life.3. striated or skeleton: the cells of striated muscles are in the form of long, unbranched fibres. they have the multi nucleus. striated are present on muscles fibres. striated muscles are found in those organs whose voluntary movement is possible like hands, legs, back, neck, etc.
thank you
about muscular tissue
muscular tissue is composed of elongated cells called muscle fibre. this tissue allows movements in the body by contraction and relation. it contains special contractile protein.
muscular tissues are 3 types
1. smooth: the cells of smooth muscles are spindle shaped and each has one nucleus. smooth muscles are found in those organs where involuntary movement is possible.2. cardiac: the cells of cardiac muscles are in the form of branches fibres. these are found in the heart. cardiac muscles can move continuously throughout the life.3. striated or skeleton: the cells of striated muscles are in the form of long, unbranched fibres. they have the multi nucleus. striated are present on muscles fibres. striated muscles are found in those organs whose voluntary movement is possible like hands, legs, back, neck, etc.
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Striated muscle cellsSmooth Muscle cellsCardiac muscle cellsAlso known as striped, voluntary or skeletal muscles.Also known as un striped, unstriated, involuntary or visceral musclesStriated and involuntary muscles.They are long and cylindrical without tapering ends.They are elongated and spindle shaped with tapering ends.They are long, cylindrical and branched to form a network.Intercalated discs are absentIntercalated discs are absentIntercalated discs are present at the junction of the cell membranes of adjacent cells.Found attached to the skeleton and arranged in bundles. Hence, they are known as skeletal muscles.Found in the walls of the stomach, intestine, ducts of the glands, walls of arteries etc. Hence,they are known as visceral musclesFound in the walls of the heart. hence,Multinucleated with the nuclei found in the peripheryUninucleate with the nucleus found in the centre of the cell.Uninucleate with centrally placed nucleus.Myofibrils show prominent light and dark bands.Hence,they are called striped or striated muscles.Myofibrils do not show light and dark bands. Hence they are called un striped or unstriated muscles.Myofibrils show dark and light bands which are faint and less prominent.Capable of quick and sustained contraction,which is under the control of our will. Hence they are known as voluntary muscles.Capable of slow and rhythmic contractions,which are not under the control of our will. Hence they are known as involuntary muscles.Capable of continuous rhythmic and autonomic contraction, which is not under the control of our will.
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