ANP 1107 Lecture Notes - Lecture 6: Skeletal Muscle, Myocyte, Sarcolemma

• School: University of Ottawa
• Department: Anatomy and Physiology
• Course: ANP 1107
• Professor: Joanne Savory

Document Summary

Cardiac heart (involuntary) (stops your dead) , can contract without nervous system stimulation. Skeletal- attached to bone (high number or nuclei, long fibers) voluntary and involuntary, contracts rapidly and tires easily , nervous system stimulation. **exci; can respond to stimuli and generate a contraction along the sarcolemma. They get in and then branch ( muscle fiber muscle cell is supplied by a nerve ending. ) Motor neurons exciting spinal cord ( skeletal muscle is controlled by those nerve endings) impulses. Motor unit- 1 and 2. innervate different muscle fibers. Can be a small with some muscle fibers or have many . Can fire together or one can be activated. Within the fascicles they have their own connective tissue covering. Groups of muscle with even deeper connective tissue covering (deep fascia) Sarcolemma is covered by the edomisium . **drirect less common , directly attaches to bone and cartilage. ** indirect tendon and aponeurotris( tendon that is big and flat)