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19 Cards in this Set
- Front
- Back
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Atria |
Upper chambers of heart; receive blood into heart |
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Ventricles |
Lower chambers of the heart; pump blood out of the heart |
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Atrioventricular valves |
Between the atria and the ventricles |
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Semilunar valves |
Between the ventricles and the arteries that bring blood away from the heart |
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Chordae Tendonae |
Tendons that hold onto the bottom of the atrioventricular valves preventing them from inverting upward when the ventricles contract |
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Right atrium |
receives deoxygenated blood from the superior/inferior vena cava; pumps blood downward to the right ventricle |
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Right ventricle |
receives deoxygenated blood from the right atrium; pumps blood out of heart to pulmonary circuit |
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Left atrium |
receives oxygenated blood from the pulmonary veins; pumps blood downward to the left ventricle |
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Left ventricle |
receives oxygenated blood from the left atrium; pumps blood out of the heart to the systemic circuit |
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Tricuspid |
the atrioventricular valve that is between the RA and RV |
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Bicuspid/Mitral |
the atrioventricular valve that is between the LA and LV |
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Pulmonary semilunar valve |
the semilunar valve between the RV and the pulmonary trunk |
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Aortic semilunar valve |
the semilunar valve between the LV and the aorta |
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Septum |
The wall that separates the right and left sides of the heart |
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Sinoatrial node |
A node which initiates the heartbeat; known as the pacemaker; initiates contraction of the atria |
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Atrioventricular node |
A node which initiates the contraction of the ventricles |
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Purkinje fibres |
Spread the nervous signal throughout the muscle of the ventricles |
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Pericardium |
A sac that encloses the heart with fluid that sits between the sac walls and the heart walls |
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Coronary artery |
branches off the aorta as it leaves the heart; serves to nourish the muscle tissue of the heart |
