NSCA- CPT CH 2 questions with correct answers

Cardiovascular system Answer Transports nutrients and removed metabolic waste products while helping to maintain the environment for all of the body's functions. The blood transports oxygen from the lungs to the tissues for use in cellular metabolism and transports carbon dioxide from the tissues to the lungs, where it is removed from the body Oxygen Answer Dissolved in the blood and carried via hemoglobin. Hemoglobin Answer Iron-containing protein within red blood cells that has the capacity to being between one and four oxygen molecules. Oxygen-hemoglobin curve Answer Illustrates the saturation of hemoglobin at various partial pressures. As Oxygen binds to hemoglobin it facilitates subsequent binding of oxygen molecules Factors influencing oxygen-hemoglobin curve Answer Decrease in core body temps (shift to left), arterial blood acidity Electrical conduction system of the heart Answer 1. SA node 2. AV node 3. Purkinje fibers 4. Contraction of ventricles Purkinje fibers Answer Series of fibers that surround the ventricles