BREAKDOWN OF MUSCLE

WHOLE MUSCLE - MUSCLE IS COVERED BY EPIMYSIUM

FASCICULUS - FASCICULUS IS COVERED BY PERIMYSIUM

MUSCLE FIBER - A SINGLE MUSCLE FIBER IS COVERED BY ENDOMYSIUM

MYOFIBRIL:

SARCOLEMMA: Aids the transmission of action potential from the motor neuron to the muscle fibers.

ACTIN: Found within the sacromere on the z disk which create the sliding filaments when connected to the myosin.

SATELLITE CELLS: Facilitate growth, development and adaptation to injury, immobilisation and training of the muscle fibers.

SARCOPLASMIC RETICULUM: Loops around the myofibril and stores calcium which is need to create sliding filaments.

MYOSIN: Two protein strands twisted together one end folded into a globular head

TRANSVERSE TUBULES: Allows waste products to move in and out of the myofibril, makes the myofibril respon to sarcolemma developments.