Key Definitions for Muscles

HideShow resource information

Key Definitions for Muscles

 

Skeletal muscle - the muscle that cause our bodies to move, also called striated muscle.

 

Myofibril - part of a muscle fibre, contains saraomeres and the contractile protein actin and myosin.

 

Saccoplasmic reticulum - equivalent to to the endoplasmic reticulum of the cells. It forms a network of channels that spread out over the surface of the myofibrils and acts as a store of calcium irons that when released initiate muscle contraction.

 

Sarcoplasm - the equivalent of cytoplasm - the liquid interior or a muscle fibre.

 

A band - the dark band in a myofibril.

 

I band - the light band in myofibril.

 

H zone - the lighter region in the

Comments

No comments have yet been made

Similar Physical Education resources:

See all Physical Education resources »See all Anatomy & physiology resources »