‹‹ Previous | Page 1 | Next ››
The movement of an organism
from one place to another is called loco-motion.
Depending on the mobility, joints can be classified into three main
Cartilagenous Joints (Amphiarthrosis)
Synovial Joint (Diarthrosis)
movements are of two types:
i) Voluntary muscle movements
ii) Involuntary muscle movements
Voluntary Muscle Movements
i) These movements are carried out
according to our will. Example: Walking, running, playing, etc.
ii) They are carried out by striated or skeletal muscles
which are attached to the bones by tendons.
iii) For example the elbow movement is brought by biceps and
triceps present in the upper arm.
iv) These muscles work antagonistic to each other.
v) The contraction of biceps and relaxation of triceps brings about
folding movement of the forearm (flexion).
vi) The contraction of triceps and relaxation of biceps straightens
the forearm (extension).
Some other examples of antagonistic muscles are as follows:
Types of Muscle and Result of their Contraction:
ii) Visceral Movements: