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Title: The types of muscles and their characteristics
Description: condensed info on the muscle types and their characteristics - all into a neat revision format

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NadiaA

Muscles
All cells can move, but some cells form multicellular contractile units called muscles
...
Skeletal (striated, voluntary)
2
...
Cardiac (striated, involuntary)
These all are surrounded by an elastic lamina
...

Contraction is stimulated via link proteins in the cell membrane
...
g
...

Motor unit- a group of muscle fibres supplied by same nerve
...
g
...
g
...
This supports rich capillary network, needed to
meet the high metabolic demands of strong continuous activity
Arrangement of contractile proteins is similar to skeletal muscle, striations less obvious as myofibrils
and cells are more irregularly shaped
Elongated nuclei, usually centrally located



Contraction of myocardium is coordinated by Purkinje system of Purkinje fibres







2


Title: The types of muscles and their characteristics
Description: condensed info on the muscle types and their characteristics - all into a neat revision format