KIN 2504 Lecture : 2504 Chapter 3 Lecture Notes
15 Mar 2019
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Cardiovascular: heart and blood vessels, responsible of transporting gases and nutrients all over the body. Respiratory: lungs and air passages (mouth, nose, pharynx, larynx, bronchi, alveoli) Heart cycle: systole, ventricles are contracting and blood is being pumped out of the heart, diastole, ventricles relax and fill back up with blood. Three metabolic systems deliver essential energy: atp (adenosine triphosphate) the form of energy used by our cells, our body breaks down stored and consumed nutrients to generate atp through three primary systems. The cardiorespiratory system at rest: resting condition, homeostasis - a stable, constant, internal environment, typically use oxidative energy system to do this, response to exercise, cardiac output - increases with exercise. The volume of blood ejected from the heart in 1 minute. Increase in blood level of hemoglobin: oxygen carrying protein that is in red blood cells, plasma increases, ventricals of heart improve their holding capacity and produce stronger contractions.
