Term
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Definition
4 Chambers serparated by valves that prevent backflow of blood.
Separates oxygenated and deoxygenated blood. |
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Term
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Definition
| Sinus Venosus, 2 atria, 1 ventricle with trabeculae, conus arteriosus. |
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Term
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Definition
| Sinus Venosus, 2 atria, 1 ventricle with 3 compartments OR sinus venosus, 2 atria, 2 ventricles |
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Term
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Definition
| 2 atria, 2 ventricles, sinus venosus, conus (pulmonary/aortic trunks). |
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Term
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Definition
| 2 atria, 2 ventricles, sinus (pacemaker), conus (pulmonary/aortic trunks). |
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Term
| Heart: Fish vs. Tetrapods |
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Definition
Fish: SV, A, V, CA
Tetrapods: 2A, 2V
CA is the aortic and pulmonary trunk in tetrapods. |
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Term
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Definition
Separated into four chambers: RA,LA,RV,LV
Atria are small and thin-walled.
Ventricles have the most mass of the heart.
Internal Valves:
- R atrioventricular valve.
- L atrioventricular valve.
- Pulmonary semilunar valve (b/t R vent and pulm trunk,aorta)
- Aortic Semilunar valve (b/t L vent and aorta)
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Term
| Layers of the human heart |
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Definition
Epicardium (outter)
Myocardium (middle)
Endocardium (inner) |
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Term
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Definition
Double-walled pericardium that covers the heart.
Inner wall = fibrous.
Outter wall = serous (secretes a fluid that helps beat without friction and allows electrical impulse). |
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Term
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Definition
Receives oxygenated blood from lungs and pumps the blood to the systemic circuit.
Higher Pressure. |
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Term
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Definition
| Receives deoxygenated blood from the body and pumps blood to the pulmonary circuit. |
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Term
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Definition
| Attached to the cusps of the valves as an anchor to prevent them from flapping back into the atrium. |
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Term
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Definition
| Separates the L and R sides of the heart. |
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Term
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Definition
(Deoxygenated)
Enters R Atrium->R AV valve->RV->Pulmonary Semilunar Valve->Pulmonary Trunk->Pulmonary Arteries->Lungs->Pulmonary Veins |
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Term
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Definition
| Enters LA from Pulmonary Veins->L AV Valve->LV->Aortic semilunar valve->aorta->body/organs->superior/inferior vena cavae->RA |
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