Question

Differentiate between striated, unstriated and cardiac muscle fibres.​

Answer 1

Explanation:

Striated muscle tissue is a muscle tissue that features repeating functional units called sarcomeres. The presence of sarcomeres manifests as a series of bands visible along the muscle fibers, which is responsible for the striated appearance observed in microscopic images of this tissue. Example is skeletal muscle.

Unstriated muscles are involuntary muscles. The movement of food in the alimentary canal or the contraction and relaxation of blood vessels are involuntary movements. It is also known as smooth muscles.

Cardiac muscle is an involuntary striated muscle tissue found only in the heart and is responsible for the ability of the heart to pump blood.

Answer 2

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The muscular system is mainly responsible for permitting movement of the body, maintaining the body’s posture, and circulation of blood cells throughout the body.

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There are three types of muscle and are mainly classified based on their movements and structures.

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Skeletal or striated muscles:

$\longrightarrow$ It is a form of striated muscle tissues and is mainly found attached to bones by the tendons.

Smooth Muscles or unstriated muscled:

$\longrightarrow$ These muscles are found inside of organs like the blood vessels, stomach, and intestines.

$\longrightarrow$ These muscles help in the movements of substances through the organs.

Cardiac Muscles:

$\longrightarrow$ These muscles are found only in the heart, and are mainly responsible for pumping blood throughout the body.