ANP 1106 Midterm: Anatomy of Muscular System 1 (All you need to know for midterms)

• School: University of Ottawa
• Department: Anatomy and Physiology
• Course: ANP 1106
• Professor: Joanne Savory

Document Summary

Transform chemical energy (atp) to directed mechanical energy (exerts force) Smooth muscle (e. g. stomach, bladder, airways) nervous system simulaion. Excitability (responsiveness): ability to receive and respond to simuli. Simulus [usually a chemical (nt, hormone, ph)] Response = ap along sarcolemma + muscle contracion. Elasicity: ability to recoil or resume resing length ater being stretched. Addiional funcions- protects organs, form valves, control pupil size etc . Each muscle served by one artery, one nerve and one/more veins. Motor unit: consists of the motor neuron and all muscle ibers it supplies. *smaller the iber number, greater the ine control. Enter/exit near central part and branch through ct sheaths. Every skeletal muscle iber supplied by nerve ending that controls its acivity. Huge nutrient and oxygen need; generates large amount of waste: connecive tissue sheets. Muscle has several diferent levels of ct wrapping. Dense, ibrous ct that surrounds the whole muscle. Fibrous ct surrounding fascicles (groups of muscle ibers)