- The image displays a cross-section of a skeletal muscle.
- The outermost layer, colored red, is the epimysium, which surrounds the entire muscle.
- Inside the epimysium, the muscle is divided into bundles called fascicles, each surrounded by the perimysium (green layer).
- Within each fascicle are individual muscle fibers (purple structures), which are the actual muscle cells.
- Each muscle fiber is enclosed by the endomysium (thin layer not distinctly colored but implied between fibers).
- A motor neuron (yellow structure) is shown innervating one of the muscle fibers, forming a neuromuscular junction at its terminal end.
Parent Tip: Review the logic above to help your child master the concept of muscle worksheet for anatomy.
