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HESI: Circulatory
| Term | Definition |
|---|---|
| Circuit | RaTVaRVen, PaLLa, PVLV, AAo |
| carries blood away from heart | Artery |
| Capillaries | sites of gas exchange btw blood & tissues |
| ______ branch into smaller vessels, ultimately becoming capillaries | Arteries |
| Capillaries merge into larger vessels called _____ | Veins |
| Veins | return blood to the heart |
| largest artery in body | Aorta |
| largest vein in the body | SVC & IVC |
| ascends from RIGHT ATRIUM connects to head & neck | Superior Vena Cava |
| descends from RIGHT ATRIUM connects to lower trunk | Inferior Vena Cava |
| smallest blood vessels & most populous in body | Capillaries |
| cardiac muscles contracting, moving blood from a chamber | SYSTOLE |
| SA NODE | heart's pacemaker |
| cardiac muscles are relaxing, chamber is expanding to fill with blood | Diastole |
| AV valve | prevents blood from going back to Atria from Ventricles |
| another name for Bicuspid Valve | Mitral Valve |
| another name for AV VALVE | Tricuspid Valve |
| sac enclosing heart | Pericardium |
| receiving chambers | Atria |
| sending chambers | Ventricles |