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cardio anatomy
| Term | Definition |
|---|---|
| gap junction | allows for communication between cytoplasms |
| desmosomes | anchor btwn cells |
| coronary sinus | empties to R atrium in myocardium's intercalated discs |
| right coronary artery | right marginal branch posterior interventricular branch |
| left coronary artery | anterior interventricular artery circumflex branch |
| coronary atrioventricular sulcus | sep. atria & ventricles |
| posterior interventricular sulcus | posteriorly btwn ventricles |
| anterior interventricular sulcus | anteriorly btwn ventricles |
| trabeculae carneae | rounded columns of myocardium in ventricles |
| pecinate | muscular ridges of myocardium in atria |
| endocardium | simple squamos epithelium |
| mycardium | cardiac muscle |
| epicardium | visceral layer of serous pericardium |
| pericardial cavity | enclosed space btwen visceral & parietal layers filled w serous fluid |
| serous pericardium | the parietal & visceral layers of serous pericardium |
| fibrous pericardium | tough fibrous layer of dense connective tissue- most superficial |
| papillary muscles | connected to chordae tendinea |
| cusps | leaflets or flaps that make up the valves |
| Chordae Tendineae | connects AV valves to papillary muscles |
| atrioventricular septum | divides the atria and ventricles |
| interventricular septum | separates ventricles |
| fossa ovalis | remnant of foramen ovalis |
| interatrial septum | btwn the atria |
| ductus arteriosus | shunt in right atria |
| vein | moves blood towards the heart |
| artery | moving away from heart |
| ventricles | pumping blood |
| atria | receives blood |
| systemic circuit | btwn heart & body |
| pulmonary circuit | btwn heart & lungs |
| blood vessels | delivers blood to organs & back to heart |
| heart | the muscular pump that keeps blood flowing through vessels |