7.2: Muscle Tissues, Connective Tissues, Nerves, and Blood Vessels By: Kolby Moyer, Jacob Hill

Organization of Skeletal muscle tissue Organs that contain: Connective tissue Blood vessels Nerves Skeletal muscle tissue

Tendons Where three layers of connective tissue come together Attaches muscle to bone

Blood Vessels and Nerves Extensive network of blood vessels in skeletal muscle Provides high amounts of nutrients and oxygen To skeletal muscles which have high metabolic needs

Control of skeletal muscle Most under voluntary control Must be simulated by central nervous system Axons Push through epimysium Branch through perimysium And enter the endomysium To control individual muscle fibers

Three Layers of Connective Tissue Epimysium covers entire tissue Perimysium divides muscles into bundles; Blood vessels and nerves are contained Endomysium covers each muscle fiber and ties fibers together; Contains capillaries and nerve tissues

Key Terms Epimysium: Layer of collagen fibers that surrounds the entire muscle Perimysium: Divide the skeletal muscle into compartments Fascicle: In each compartment, it’s a bundle of muscle fibers Endomysium: In each fascicle, surrounds each skeletal muscle fibers and ties adjacent muscle fibers together Tendon: Collagen fibers of all three layers come together Aponeurosis: Collagen fibers form a broad sheet

Checkpoint Questions Epimysium- covers entire muscle, perimysium- fascicles, blood vessels and nerves, endomysium- ties fibers together It would limit the movement because the muscle is no longer attached to the bone