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Cardiovascular System (Circulation (Pulmonary Circulation (Circulation of…
Cardiovascular System
Heart Valves
Tricuspid valve
first valve that blood encounters as it enters the heart. LOCATED between the right atrium and right ventricle and allows blood to flow only from the atrium into the ventricle. <blue right>
Bicuspid Valve
LOCATED between the Left Atrium and the Left Ventricle. It permits blood to flow one way only, from the atrium into the ventricle. <RED>
Pulmonary Semilunar
a semilunar valve between the right ventricle and the pulmonary artery (trunk); prevents blood from flowing from the artery back into the heart
a semilunar valve between the right ventricle and the pulmonary artery (trunk); prevents blood from flowing from the artery back into the heart
Aortic Semilunar
a valve in the heart between the left ventricle and the aorta - lets blood from the left ventricle be pumped up (ejected) into the aorta but prevents blood once it is in the aorta from returning to the heart.
Circulation
Pulmonary Circulation
Circulation of blood between the heart and the lungs = The passage of blood from the right ventricle through the pulmonary artery to the lungs and back through the pulmonary veins to the left atrium.blood flow through the network of vessels between the heart and the lungs for the oxygenation of blood and removal of carbon dioxide.
Systemic Circulation
Circulation of blood throughout the body through the arteries, capillaries, and veins, which carry oxygenated blood from the left ventricle to various tissues and return venous blood to the right atrium.
Right atrium
The Right Upper chamber of the heart receives/Accepts deoxygenated blood From the Body through the vena cava and pumps it into the right ventricle <blue>
Right Ventricle
The Lower Right Chamber of the heart that Receives/Accepts deoxygenated blood From the right atrium and pumps into the lungs via the pulmonary artery. <blue>
Left Atrium
The upper left chamber of the heart. Receives/Accepts Oxygenated blood from the lungs and pumps it down into the left ventricle which delivers it to the body. <red>
Left Ventricle
The left lower chamber of the heart that receives blood from the left atrium and pumps it out under high pressure through the aorta to the body. <RED>
Coronary Circulation
there process the blood supply that oxygenates and removes carbon dioxide from the myocardium of the heart
Coronary Veins
collect the carbon-dioxide blood and returns it to the right artium of the heart via the coronary sinus
SA Node
sends out an electrical impulse along intermodal pathway, causing atria to contract forcing blood from atria to the ventricles. It is located in the right atrium near entrance of superior vena cava.
AV Node
The backup pacemaker of the heart should the SA node fail.It is located at the junction between the atria and ventricles.
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General Heart Functions
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Stroke Volume
volume of blood ejected from the left ventricle, while heart rate us the heart beats per min
Capillaries
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Osmosis - moves tissue fluid in to become plasma again
Diffusion- moves carbon dioxide in cappilaries
Layers of the heart
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Endocardium
INNER MOST LAYER OF HEART WALL - Thin simple squamous epithelium,
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