Question

someone plz answer my question


define the following :-

1)striated muscle
2) smooth muscle
3) cardiac muscle.



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Answer 1

Explanation:

Striated muscle- 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.

Smooth muscle- Smooth muscle fibers are located in walls of hollow visceral organs, except the heart, appear spindle-shaped, and are also under involuntary control. Skeletal muscle fibers occur in muscles which are attached to the skeleton.

Cardiac muscle- Cardiac muscle (also called heart muscle or myocardium) is one of three types of vertebrate muscles, with the other two being skeletal and smooth muscles. It is an involuntary, striated muscle that constitutes the main tissue of the walls of the heart.

Answer 2

Explanation:

1. muscle tissue in which the contractile fibrils in the cells are aligned in parallel bundles, so that their different regions form stripes visible in a microscope. Muscles of this type are attached to the skeleton by tendons and are under voluntary control.

2. Smooth muscle, also called involuntary muscle, muscle that shows no cross stripes under microscopic magnification. ... Smooth muscle tissue, unlike striated muscle, contracts slowly and automatically. It constitutes much of the musculature of internal organs and the digestive system.

3. Cardiac muscle, also called myocardium, in vertebrates, one of three major muscle types, found only in the heart. ...