≡@Adilson Pereira - Pernambuco, Brasil
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Human Tissues >>
Muscle Tissue
It is responsible for the movements of the body and organs, composed of elongated cells (muscle fibers) with the ability to contract due to the proteins actin and myosin
It is essential for movement, circulation and visceral control.
Features:
Composed of elongated cells called muscle fibers. It has the ability to contract, thanks to the proteins actin and myosin.
High vascularization and energy consumption.
Classification:
Skeletal striated muscle:
Multinucleated cells and striations.
Voluntary hiring.
Ex.: Body movements.
Cardiac striated muscle:
Striated, with intercalated discs and branched fibers.
Involuntary and rhythmic contracting.
Ex.: Heart.
Smooth muscle:
No striations, fusiform fibers.
Slow and involuntary hiring.
Ex.: Visceral organs (intestine, vessels).
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