Term
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Definition
| chamber on the left side of the heart. Derived from two structures. The posterior half (inflow) receives the four pulmonary veins. The anterior half is continuous with the left auricle. When pumping fills ventricle 30% full of blood |
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Term
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Definition
| lies anterior to the left atrium. Contracts forcing the blood to go to aorta |
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Term
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Definition
| right border of the heart. Blood drains from three vessels: the superior and inferior venae cavae and the coronary sinus (returns blood from walls of the heart) |
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Term
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Definition
| Forms the most of anterior surface of heart and part of diaphramic surface. Blood moves horizontal and forward. |
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Definition
| Carries oxygenated blood from the lungs to the heart |
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Term
Mitral Valve
(Left Atrioventricular Valve) |
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Definition
| Referred to as the Bicuspid valve. Closing of the left ventricular orifice to the left ventricle |
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Term
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Definition
| largest artery in the body |
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Term
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Definition
| It is orientated to prevent the flow of the blood out of the ventricle but snaps shut at back flow |
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Definition
| The pathway of blood to the body regions and organs; brings oxygenated blood the the head, neck and organs in the body. Gives oxygen to tissue and receives carbonation. |
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Definition
| Drains blood from the upper body into the right atrium. |
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Term
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Definition
| Drains blood from the lower body to the right atrium |
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Term
Tricuspid Valve
(Right Atrioventricular Valve) |
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Definition
| Contraction closes the right atrioventricular orifice |
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Term
| Pulmonary Semilunar Valve |
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Definition
| Closes the opening into the pulmonary trunk from the right ventrical |
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Definition
| branches into two arteries (left and right) which go to corresponding lungs. |
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Term
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Definition
| contraction of the atrial muscle; plays a part in ventricular filling and opening and closing of the A-V valves. |
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Term
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Definition
| Contaction of the left and right ventricles, forcing blood in to the aorta and pulmonary artery |
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Term
Sinoatrial Node
(SA Node)
(Pacemaker) |
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Definition
| impulse-generating tissue in the right atrium |
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Term
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Definition
| The AV node is an area of specialized tissue between the atria and the ventricles of the heartelectrical control system of the heart that co-ordinates heart rate and electrically controls atrial and ventricle chambers |
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Term
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Definition
| ocated in the inner ventricular walls of the heart; pecialized myocardial fibers that conduct an electrical stimulus or impulse that enables the heart to contract in a coordinated fashion. |
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Term
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Definition
| circulation of blood in the blood vessels of the heart muscle; The vessels that deliver oxygen-rich blood to the myocardium are known as coronary arteries. The vessels that remove the deoxygenated blood from the heart muscle are known as cardiac veins. |
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