LOCOMOTION AND MOVEMENT
Introduction :-
Locomotion : The change in movement results changes of places is called locomotion .
Movements: There is no change in place .
*All movements are locomotion but not all locomotion are movements .
TYPES OF MOVEMENTS :-
1. Amoeboid movement
2. Ciliary movement
3. Muscular movement
AMOEBOID MOVEMENT :-
Specialised cells in our body like macrophages and leucocytes exhibit amoeboid movement .
Cytoskeleton elements like microfilaments also have this type of movement .
CILIARY MOVEMENT :-
It occurs in most of our internal tubular organs . like trachea to remove dust particles and also
fallopian tube for the movement of ova . cilia helps in the locomotion .
MUSCULAR MOVEMENT :-
Movements in our jaws and limbs have this type of muscular movement . They have contractile
property .
MUSCLES :-
* 40-50% of human body weight is contributed by muscles .
* They have special properties like excitability , contractility, extensibility and elasticity .
On the basis of location there are 3 types of muscles
1. Skeletal muscles
2. Visceral muscles
3. Cardiac muscles
1.SKELETAL MUSCLES
Skeletal muscles refers to a specialized contractile tissue that exists in animals .
Its main function is to move on organisms body .
, They have stripped appearance under microscope hence they are called striated
muscles .
They have voluntary control .
Functions: locomotory actions and changes in body postures .
2. VISCERAL MUSCLES
Location : Inner walls of hollow visceral organs .{ e.g – alimentary canal ,
reproductive tract etc } .
They don’t not exhibit any striation and are smooth in appearance .
Involuntary in nature .
Functions : transportation of food and gametes through genital tract .
3. CARDIAC MUSCLES
These are muscles of heart .
Muscle cells are in branching pattern
Cardiac muscles are striated .
Involuntary in nature .
by Unknown Author is licensed under
Introduction :-
Locomotion : The change in movement results changes of places is called locomotion .
Movements: There is no change in place .
*All movements are locomotion but not all locomotion are movements .
TYPES OF MOVEMENTS :-
1. Amoeboid movement
2. Ciliary movement
3. Muscular movement
AMOEBOID MOVEMENT :-
Specialised cells in our body like macrophages and leucocytes exhibit amoeboid movement .
Cytoskeleton elements like microfilaments also have this type of movement .
CILIARY MOVEMENT :-
It occurs in most of our internal tubular organs . like trachea to remove dust particles and also
fallopian tube for the movement of ova . cilia helps in the locomotion .
MUSCULAR MOVEMENT :-
Movements in our jaws and limbs have this type of muscular movement . They have contractile
property .
MUSCLES :-
* 40-50% of human body weight is contributed by muscles .
* They have special properties like excitability , contractility, extensibility and elasticity .
On the basis of location there are 3 types of muscles
1. Skeletal muscles
2. Visceral muscles
3. Cardiac muscles
1.SKELETAL MUSCLES
Skeletal muscles refers to a specialized contractile tissue that exists in animals .
Its main function is to move on organisms body .
, They have stripped appearance under microscope hence they are called striated
muscles .
They have voluntary control .
Functions: locomotory actions and changes in body postures .
2. VISCERAL MUSCLES
Location : Inner walls of hollow visceral organs .{ e.g – alimentary canal ,
reproductive tract etc } .
They don’t not exhibit any striation and are smooth in appearance .
Involuntary in nature .
Functions : transportation of food and gametes through genital tract .
3. CARDIAC MUSCLES
These are muscles of heart .
Muscle cells are in branching pattern
Cardiac muscles are striated .
Involuntary in nature .
by Unknown Author is licensed under
