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18 Cards in this Set
- Front
- Back
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afterload |
The physical resistance presented by the artery the ventricle is ejecting blood into. |
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auscultation |
Listening, with the ear or a stethoscope, to sounds produced within the body. |
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bicuspid valve |
Also known as the mitral valve. Located between the left atrium and ventricle. Left AV valve.
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ductus arteriosus |
A duct between the pulmonary artery and the aorta in the fetus. |
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endocardium |
The innermost layer of the heart.
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epicardium |
Outermost layer of the heart.
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myocardium |
The middle layer of the heart and the main muscle layer responsible for contraction during systole.
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parietal layer of the serous pericardium |
The layer of pleura that lines the thorax. |
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pericardium |
Tissue that forms a sac around the heart to protect it and to control the movement of the heart within the thorax.
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pericardial fluid |
The transudate fluid secreted into the pericardial sac around the heart. Helps to lubricate the surface of the heart as it beats.
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pericardial sac |
Sac formed by pericardium around the heart.
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repolarize |
The process following depolarization wherein potassium ions diffuse rapidly out of the neuron.
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serous pericaridum |
One of the layers of the pericardium around the heart. Divided into visceral and parietal.
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sinoatrial node |
A group of specialized cardiac muscle cells in the wall of the right atrium of the heart that act as the heart's pacemaker. The impulse that starts each heartbeat is initiated in the SA node.
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stystolic blood pressure |
The higher number.
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systole |
The part of the cardiac cycle associated with contraction of the ventricles and atria and ejection of blood into the arterial systems.
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diastole |
The part of the cardiac cycle associated with relaxation of the atria and ventricles and the filing of the chambers with blood.
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visceral layer of the serous pericardium |
The layer of serous pericardium that lies directly on the heart. |
