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MUSCLES (TYPES (According to their shape (Flat (Cover and protect organs,…
MUSCLES
TYPES
According cells that form them
Striated muscle fibre
Join with bones. Responsible for movements of the bones
They contract voluntarily
Smooth muscle fibre
Part of internal organs
They contract involuntarily
According to their shape
Flat
Cover and protect organs
Chest and abdominal muscles
Circular/sphincters
Close or open a cavity duct
Eyes and lips
Long/fusiform
Role in the movement of the body
Biceps and triceps
MUSCLE STRUCTURE
Groups of muscle tissues; made up of elongated muscle cells
MUSCLE CONTRACTION
Contract by widening and shortening their fibres
Agonists
Perform one unique movement
Antagonists
Perform movements in opposite directions