Unformatted text preview: Muscular Tissue
LIM JING YEE (a) Smooth Muscle
Structure: -spindle-shaped & have a single central nucleus
II. The cells are arranged in parallel and form muscle layers.
This muscle does not have striations. Function:
-is an involuntary muscle
I. It can contract without nerve stimulation and is not under
conscious control. -involved in peristalsis, vasoconstriction,
vasodilation,bronchoconstriction, bronchodilation and so on. Distribution:
-Occurs in the walls of digestive tract,uterus,blood vessels and
many other internal organs. (b) Cardiac Muscle
-is the tissue of the heart Structure: -cylinder-shaped
-connected one to another by intercalated discs so that the
excitation can be transmitted effectively from cell to cell. Function: -The cardiac muscle of the heart is myogenic
I. It can contract and relax automatically without the
stimulation from nerves.
II. Brings about the continuous rhythmic contractions
of the heart and pumps blood around the body. -END-Thank You- ...
View Full Document