12. Heart Flashcards
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Muscular organ essential for life as it pumps the blood
Heart
Functions of the Heart
- Generates bp
- Ensuring one-way blood flow
- Routing blood
- Regulating blood supply
Is approximately the size of a closed first which is shaped like a blunt cone and located in the thoracic cavity
Heart
An artery that carries blood from the right ventricle to the lungs
Pulmonary Trunk
An artery that wherein blood comes from the left ventricle and carries blood to the rest of the body
Aorta
*Receives blood from the veins
*function as reservoirs
*separated internally from each other by the interatrial septum
Right and Left Atria
Three Major Openings of Heart
- Superior and
- Inferior Vena Cava
- Coronary Sinus
Major pumping chambers
Right and Left Ventricles
This ensure one-way blood flow
Heart Valve
Located between each atrium and ventricle
Atrioventricular Valves (AV)
Located between each ventricle and its associated great artery
Semilunar Valves
Separates the right atrium and the right ventricle (Three cups)
Tricuspid Valve
Also called the mitral valve separating left atrium and left ventricle
Bicuspid Valve
Attach the papillary muscles to the free margins of the cusps of the atrioventricular valves
Chordae Tendineae
Cone-shaped, muscular pillars in each ventricle
Papillary Muscles