AH 3234 Lecture Notes - Lecture 11: Cellular Respiration, Stroke Volume, Cardiac Output
Document Summary
Ability of lungs, heart and blood vessels to deliver enough oxygen to cells to meet demands of prolonged physical activity. Hypokinetic diseases: hypertension, heart disease, chronic low back pain and obesity. Aerobic exercise is very important in preventing cardiovascular disease. Cr measured pulmonary, cardiovascular and muscular systems working together during aerobic activites. Oxygen taken up by alveoli in the lungs and transported in blood hemoglobin, then through the circulatory system. Oxygen converts food into atp through aerobic metabolism. Higher oxygen uptake, or v)2, indicated more efficient cr system. Alveoli: air sacs in the lungs where o2 is taken up and co2 is released from the blood. Iron-containing compound found in rbc that transports o2. Adenosine triphosphate: a high-energy chemical compound that the body uses for immediate energy. Oxygen uptake (vo2: the amount of oxygen the body used. Cardiorespiratory endurance activities are called aerobic exercises: requires oxygen to produce atp to carry out activity, running, biking, swimming (cardio)
