why are involuntary muscles called un striated muscles?
Anonymous:
Firstly what are involuntary muscles,those muscles which works without our will and unstraited do the same thing that is they also work itself so now you think Mr user what the prob is calling involuntary muscles unstraited muscle this q. is very easy dont complex it.
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Muscles are generally of 3 types -- striated , non striated and cardiac . In fact cardiac muscles also have a few striations in them but still because of their unique activity and specific location they are grouped separately. Now coming to the answer, the question must be " Why are non striated muscles involuntary ? " and not vice versa. Anyways , the muscles which are non striated have a single nucleus in them and they are spindle shaped. They are found in the mucosal layers of the intestine and visceral layers of the inner organs. Their action cannot be controlled by us and hence are involuntary and they are also called smooth muscles.
skeletal muscles.. striated muscles contract only voluntarily with the involvement of nervous system CNS. Smooth muscles can contract either by involvement of nervous system or by receiving innervation by endocrine or other hormonal activation.
are the muscle tissues of striated and non-striated muscles same ??
the involuntary muscles required greater elasticity. their excitation contraction coupling is different from that of striated muscles.
skeletal muscles.. striated muscles contract only voluntarily with the involvement of nervous system CNS. Smooth muscles can contract either by involvement of nervous system or by receiving innervation by endocrine or other hormonal activation.
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▶Muscles of heart of heart are called involuntary muscles because:-
[1] They never get fatigued.
[2] They contract tirelessly throughout life.
➧Types 0f Muscular Tissue are:-▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃⤵
❶❫ Striated Muscles:-▬▬▬▬▬▬▬▬▬▬▬☟
◉ Also known as Skeletal Muscles.
◉ It attached to bone in Limbs.
◉ Types of control is voluntary.
◉ It forms bundles.
◉ No. of nuclei is Multinucleate.
◉ Nerve supply is from central nervous system.
◉ Speed of contraction is most rapid.
❱ Its Functions are:-════════════════☟
①❭ They are responsible for locomotion.
②❭ It control the breathing movement.
③❭ This muscles are also help in in digestion of food.
④❭ They are also help in blinking of Eyes.
❷❫ Non-Striated Muscles:-▬▬▬▬▬▬▬▬▬▬▬▬☟
◉ Also known as Smooth Muscles.
◉ It attached in the walls of stomach, intestine & blood vessels.
◉ Types of control is involuntary.
◉ It forms sheet or sphincter.
◉ No. of nuclei is uninucleate.
◉ Nervous supply is from autonomic nervous system.
◉ Speed of contraction is slowest.
❱ Its Functions are:-════════════════☟
①❭ Muscles of iris & ciliary body of eye control amount of light to enter the eye.
②❭ Ciliary muscles body are responsible for accommodation of lens.
③❭ Sphincter bring about 0pening & closing of anal aperture, tubes & cavities.
④❭ They relax & contract the walls of arteries, ducts & uterus.
❸❫ Cardiac Muscles:-▬▬▬▬▬▬▬▬▬▬▬☟
◉ Also known as Heart Muscles.
◉ It attached in the walls of hearts.
◉ Types of control is Involuntary.
◉ It forms a network.
◉ No. of nuclei is Uninucleate.
◉ Nerve supply is from autonomic nervous system.
❱ Its Functions are:-════════════════☟
①❭ They helps in pulsating movement of heart chamber.
②❭ They pump blood from heart into the blood vessels.
_________ Thanks...✊
✭✮ӇЄƦЄ ƖƧ ƳƠƲƦ ƛƝƧƜЄƦ✮✭
┗─━─━─━─━∞◆∞━─━─━─━─┛
▶Muscles of heart of heart are called involuntary muscles because:-
[1] They never get fatigued.
[2] They contract tirelessly throughout life.
➧Types 0f Muscular Tissue are:-▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃⤵
❶❫ Striated Muscles:-▬▬▬▬▬▬▬▬▬▬▬☟
◉ Also known as Skeletal Muscles.
◉ It attached to bone in Limbs.
◉ Types of control is voluntary.
◉ It forms bundles.
◉ No. of nuclei is Multinucleate.
◉ Nerve supply is from central nervous system.
◉ Speed of contraction is most rapid.
❱ Its Functions are:-════════════════☟
①❭ They are responsible for locomotion.
②❭ It control the breathing movement.
③❭ This muscles are also help in in digestion of food.
④❭ They are also help in blinking of Eyes.
❷❫ Non-Striated Muscles:-▬▬▬▬▬▬▬▬▬▬▬▬☟
◉ Also known as Smooth Muscles.
◉ It attached in the walls of stomach, intestine & blood vessels.
◉ Types of control is involuntary.
◉ It forms sheet or sphincter.
◉ No. of nuclei is uninucleate.
◉ Nervous supply is from autonomic nervous system.
◉ Speed of contraction is slowest.
❱ Its Functions are:-════════════════☟
①❭ Muscles of iris & ciliary body of eye control amount of light to enter the eye.
②❭ Ciliary muscles body are responsible for accommodation of lens.
③❭ Sphincter bring about 0pening & closing of anal aperture, tubes & cavities.
④❭ They relax & contract the walls of arteries, ducts & uterus.
❸❫ Cardiac Muscles:-▬▬▬▬▬▬▬▬▬▬▬☟
◉ Also known as Heart Muscles.
◉ It attached in the walls of hearts.
◉ Types of control is Involuntary.
◉ It forms a network.
◉ No. of nuclei is Uninucleate.
◉ Nerve supply is from autonomic nervous system.
❱ Its Functions are:-════════════════☟
①❭ They helps in pulsating movement of heart chamber.
②❭ They pump blood from heart into the blood vessels.
_________ Thanks...✊
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