2-1 and 2-3 Cardiorespiratory Fitness BB (02)

2-1 and 2-3 Cardiorespiratory Fitness BB (02) -...

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Cardiorespiratory System What is it? Cooperative work of the circulatory and respiratory systems. What is it composed of? circulatory system and respiratory system What is the function of the Cardiorespiratory System? Cardiovascular System Transports OXYGENATED blood from lungs to tissues and deoxygenated blood from tissues to lungs Distributes NUTRIENTS to cells Removes metabolic WASTES from periphery for elimination or reuse Regulates pH Transports hormones and enzymes Maintains fluid volume Maintains body temperature by absorbing and redistributing heat Respiratory System Delivery of OXYGEN to the blood and remove CARBON DIOXIDE from the blood Cardiovascular System Video Overview Cardiovascular system How the heart works What are the components of the cardiovascular system? HEART BLOOD VESSELS Overview of the Cardiovascular System: One Heart but TWO Pumps Closed loop composed of heart and blood vessels Heart Pump that generates pressure to move BLOOD Two pumps in one Right side Pumps oxygen depleted blood through the PULMONARY Circuit Left SidePumps oxygen rich blood through the SYSTEMIC system A Closer Look at the Heart: Anatomy Chambers HOLD blood Muscle PUMPS blood Coronary arteries
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FEEDS the heart muscle Electrical system STIMULATES heart to beat. Chambers of the Heart Right and Left Pump Atrium UPPER chamber Ventricle LOWER Chamber Right Pump Right atrium Receives OXYGEN poor blood from superior and inferior vena cava Blood goes from here to RIGHT ventricle Right Ventricle Pumps blood out the pulmonary artery to the LUNGS Left Pump Left atrium Receives OXYGEN rich blood from the lungs via the pulmonary vein Blood goes from here to LEFT ventricle Left Ventricle Pumps blood out the AORTA to the body When the ventricles contract where do we want the blood to go? Out the AORTA & PULMONARY arteries Where don’t we want it do go? Back up to the ATRIA How do we prevent that? One way VALVES Between beats, when the heart is relaxed, where in the heart do we want blood to flow? -Forward into the ATRIUM and VENTRICLE from the superior vena cava and pulmonary vein Where don’t we want blood to flow? -Back into VENTRICLES from the aorta and pulmonary artery One Way Valves Video Overview Tricuspid valve Between RIGHT atrium and ventricle
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Prevents blood going back into right atrium when right ventricle contracts Pulmonary Valve Between right VENTRICLE and pulmonary ARTERY Prevents blood going back into right ventricle when right ventricle relaxes Mitral Valve Between LEFT atrium and ventricle Prevents blood going back into left atrium when left ventricle contracts Aortic Valve Between left VENTRICLE and AORTA Prevents blood going back into left ventricle
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This note was uploaded on 11/13/2011 for the course KIN 316 taught by Professor Smith during the Spring '11 term at University of Texas at Austin.

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2-1 and 2-3 Cardiorespiratory Fitness BB (02) -...

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