ANP 1105 Lecture Notes - Lecture 8: Endocrine System, Troponin, Hypothalamus
Document Summary
Exam friday - 52 mc; 6 fill in the blank; 2 identify a diagram. Everything up to autonomic nervous system is on midterm. Creatine phosphate is a high-energy molecule stored in muscles. Creatine phosphate + adp => creatine + atp. High atp yield but slower (many steps); required continuous 02/ nutrients. Only 2 atp/glucose but 02 not used and it is a fast process. Usually pyruvic acid then enter aerobic pathway; but if about 70% activity for long peropd, blood vessels compressed by muscles & aerobic respiration too slow. Pyruvic acid converted to lactic acid; reconverted back to pyruvic acid once exercise is over. Aerobic endurance - length of time a muscle can use aerobic resporation. Anaerobic threshold - point at which muscle converts to anaerobic respiration. Extra amount of oxygen needed to replenish o2 reserves, convert lactic acid to pyruvic acid, replace glycogen stores, restock atp and cp.