Write a short note on different types of muscles.

Explanation

Muscles are of three types, skeletal, smooth and cardiac. They are (i) Skeletal muscle, (ii) Smooth muscle, (iii) Cardiac muscle.
a)  Skeletal muscle tissue is closely attached to skeletal bones. In a typical muscle such as the biceps, the striated (striped) skeletal muscle fibres are bundled together in a parallel fashion. A sheath of tough connective tissue encloses several bundles of muscle fibres.
(ii) Smooth muscle:The smooth muscle fibres taper at ZOOh ends (fusiform) and do junctions hold them together and they are bundled together s taper at ZOOh ends (fusiform) and do not show striations. Cell The walls of internal organs such as the blood vessel her and they are bundled together in a connective tissue sheath. this type of muscle tissue. Smooth muscles are involuntary as the such as the blood vessels, stomach and intestine contain smooth muscles are involuntary. as their functions cannot be directly controlled. Unlike the smooth muscles, skeletal muscles can not be control merely thinking.
(iii) Cardiac muscle: Cardiac muscle tissue Cardiac muscle tissue is a contractile tissue present only in the heart. Cell junctions fuse the plasma membranes of cardiac muscle cells and make them stick together. Communication junctions intercalated discs) at some fusion points allow the cells to contract as a unit, i.e., when one cell receives a signal to contract, its neighbours are also stimulated to contract