BIOL 1115 Lecture Notes - Motor Neuron, Glycolysis, Exercise Intensity
Document Summary
Skeletal muscle: skeletal muscle attaches to and move the skeleton, they are under voluntary control. Smooth muscles found in the walls of hollow organ they don"t have a set pattern like skeletal muscle and they are under involuntary control. Insertion is the more moveable end of the muscle. The belly is the muscle: endomysium, perimysium, epimysium. It serves in part to maintain intramuscular pressure: there are two major protein in the sarcomere that deals with the contraction of muscle. Atp, energy source, is release the myosin cock its head binding to the actin forming a cross bridge which shorted the sacromere thus contraction happens: muscle require a good supply of blood in order to generate force. The increase of muscle force and intramuscular pressure also increase, this restrict blood flow to the muscle. Large muscle require a lot of motor unit to perform gross movement: the all of none law represent action potential.
