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The Heart
Anatomy
| Question | Answer |
|---|---|
| Surperior Vena Cava | returns blood to the right artium of the upper body |
| Right Atrium | first chamber- returns blood to the heart from the body |
| Tricuspid valve | Prevents blood from flowing back into the right artium when right ventricule contracts |
| Right anterior papillary muscle | When this muscle contracts the tricuspid will close and prevent valve from prolapsing into the atrium |
| Right ventricle | recieves blood from right atrium then pumps the blood to the lungs via pulmonary artery |
| Interventicular sptum- | muscle wall seperates left and right ventricles |
| chordae Tendineae | connect valves to papillary muscle |
| Left Ventricle | recieves blood from left atrium and pumps blood to entire body. You fell this ventricle when it contracts. |
| Moderator Band | carries electerical impulses throught the heart |
| aortic valve | prevents blood from returning to the heart as left ventricle contracts. (Semilunar valve) |
| Left Artium | Recieves oxygenated blood from lungs via pulmonary veins. It then pumps blood to left ventrical via miartrial valve. |
| Pulmonary Veins | carrys oxygenated blood from the lungs to the heart (left atrium) Only veins that carry oxygenated blood. |
| Ascending Aorta | Caries blood to the body as left ventricle contracts. |
| epiardium | reduces friction, outer layer of the heart. |
| Myocardium | muscle layer of the heart,middle |
| endocardium | epithael lining of the heart, is continous with the blood vessels. |