Biology, asked by lovelyupadhye4002, 1 year ago

Write a short note on cardiac muscles with examples in small answer

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Answered by Anonymous
1
Cardiac muscle, also known as heart muscle, is the layer of muscle tissue which lies between the endocardium and epicardium. These inner and outer layers of the heart, respectively, surround the cardiac muscle tissue and separate it from the blood and other organs. Cardiac muscle is made from sheets of cardiac muscle cells. These cells, unlike skeletal muscle cells, are typically unicellular and connect to one another through special intercalated discs. These specialized cell junction and the arrangement of muscle cells enables cardiac muscle to contract quickly and repeatedly, forcing blood throughout the body.
Answered by Anonymous
0
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➧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.

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