Muscular System
Function
The muscular function helps the body move, maintain posture, protect internal organs, provide movement of blood, food, and waste through the body and produce heat.
Tissue types
Skeletal- striated/voluntary
Verbal- smooth/involuntary
Cardiac-striated/involuntary
Responses
Twitch- single contraction, not normal function
Tetanus- contraction after contraction,muscle never returns to normal state
Attachment
Origin-attachment to a moveable bone
Insertion- attachment to an immoveable bone
always attacked at two points
Energy used
Energy stored in muscles in the form of ATP
Shapes
Triangular
Spindle
Flat
Circular
Movement
Flexion
Extension
Hyperextension
Abduction
Adduction
Rotation
Inversion
Eversion