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BIOLOGY TOPIC 11 ANIMAL PHYSIOLOGY (HL)

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Describe the organization of skeletal muscles (4)

Autor: Sammy Universe

Describe the organization of skeletal muscles (4)



Respuesta:

FASCICLES: made of tightly muscular bundles (fascicles) surrounded by connective tissue (perimysium) MUSCLE FIBRES: Each bundle contains multiple muscle fibres formed from fused muscle cells (multinucleated) MYOFIBRILS: muscle fibres are made up of myofibrils which are responsible for contraction SARCOMERES: myofibrils divide into repeating sections called sarcomeres


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