front 1 4 steps of skeletal muscle to contract | back 1 1. EVents at neuromuscular junction 2. Muscle fiber excitation 3. Excitation - contraction 4. Cross bridge cycling |
front 2 Making ATP | back 2 Creatine phosphate that can lone over and adp creates atp. ( |
front 3 Anaerobic Pathway | back 3 without oxygen, will help build up adp ( 2 atp per glucose ) |
front 4 Aerobic Pathway. | back 4 uses oxygen and glucose produces 32 atp per glucose lots of energy but takes a while |
front 5 3 things ATP is responbile for muscle contraction | back 5 1. Move and detach cross bridge 2. pump calcum back into SR Pumps NA+ out of and K+ back into cell |
front 6 Difference betwn. Ana & Aerobic Pathway. | back 6 Ana = No Oxygen Aerobic = With Oxygen |
front 7 How many ATP is made during the Anerobic Pathway & Aerobic | back 7 2 & 32 |
front 8 Providing Energy for Contraction | back 8 Anaerobic & Aerobic |
front 9 Muscle Fatigue | back 9 Physiological inability to contract despite continued stimulation Possible Causes Include : Ionic imbalances can cause fatigue or levels of K+ and Na+ |
front 10 Decreased ATP and Increased Magnesium | back 10 As ATP drops, magnesium levels increases and this can interefer with voltafe sensitive T tubule proteins Decreased glycogen : Lack of ATP is rarely reason for fatigue, except severe |
front 11 Clinical | back 11 Muscles must be active to remain healthy - Disuse atrophy ( degeneration and loss of muscle tissue ) - due to immobilization or loss of neural stimulation - Muscle strength can decline 5% per day |
front 12 Myasthenia gravis | back 12 A communication problem at nerves and muscles resuls in muscles wekness and muscle fatigue |
front 13 Lambert Eaton syndrom | back 13 A condition in which the bodys immune system attacks. |