MUSCULAR SYSTEM
Contraction of the muscle tissue is defined as the capacity of the muscle fibers to
become short.
Classification of the Muscles
According to the structure and function, there are 3 types:
Muscle Skeletal Smooth Cardiac
1. Site Attached to
skeleton (bones)
In the wall of blood
vessels and
viscera
In the myocardium
(cardiac muscle) of
heart
2. Contraction Voluntary Involuntary Involuntary
3. Striations Present Absent Present but less
than skeletal muscle
4. Nerve supply Somatic nerve Autonomic nerve Autonomic nerve
5. Muscle cell
(fiber)
Multinucleated
with peripheral
nuclei
Spindle-shaped
with single nucleus
Branch and fuse
together with single
nucleus.