Locomotion & Movement

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Fascicle

(muscle bundle)

Muscle fibre

(muscle cell)

Sarcolemma

Blood capillary

Muscles have excitability, contractility, extensibility & elasticity.

Each muscle is made up of many long fibres arranged in parallel arrays.

These fibres are composed of fine fibrils called myofibrils.

BÅSËD ØÑ LØÇÅTÏØÑ, MÜSÇLËS ÅRË ØF THRËË TÝPËS :

SKELETAL (STRIATED)

MUSCLES

VISCERAL (NON-

STRIATED) MUSCLES

CARDIAC MUSCLES

Attached to skeletons

In visceral organs

In heart wall

Striations present

Absent

Present

Voluntary

Involuntary

Involuntary

Rich blood supply

Poor blood supply

Rich blood supply

Fatigue muscle

Non - fatigue

Non - fatigue

Multinucleate

Uninucleate

Uninucleate

More mitochondria

Less mitochondria

More mitochondria

Involved in locomotory

activities

an

body

position adjustments

Involved

in

food

transfer and gamete

transfer

Involved in contraction

and expansion of heart