Muscle tissue class 9th

Muscle Tissue

The muscular tissue can be divided into 3 types:-

1. Striated Muscles
2. Smooth Muscles
3. Cardiac Muscles

                                          Striated Muscle                               Smooth Muscle                      Cardiac Muscle

• The muscles are also known as skeletal muscles or
voluntary muscles
• The type of muscles show light and dark bands or
striations when stained, hence they are also known as
striated muscles
• The cells of this tissue are long, cylindrical, unbranched
and multinucleate.
• They are attached to the bones and help in body
movements
• Each muscle cell is enclosed in a distinct plasma
membrane called the sarcolemma
SMOOTH MUSCLES


• These are also known as the unstriated or the
involuntary muscles
• They occur as bundles which are spindle shaped
and have a single nucleus
• The movement of these muscles cannot be
controlled
• The tissue are often seen in the walls of the
alimentary canal, visceral organs except the heart


CARDIAC MUSCLES

• They show the charecteristics of both the striated
and smooth muscles
• The cells of this muscles are branched cylindrical
and uninucleate, the intercellular spaces are filled
with the connective tissue
• They have dark and light bands on them
• The muscles around the heart show rhythmic
contraction and relaxation throughout the life ,
and hence these involuntary muscles are also
known as the cardiac muscles