| RightVentricle | | Leaking or backflow due to a damaged valve is know as a _________valve. |
| Vagus | | Cardac myocytes do not experience this type of muscle contraction |
| Myocardial | | The heart has a great deal of difficulty adapting to sudden, ________ changes such as a ruptured chordae tendinae |
| FrankStarlingLawOfTheHeart | | 15% of the work of the heart is used to move the blood into the outflow vessels |
| Pressure | | Contraction phase of the cardiac cycle |
| GapJunctions | | Purkinge fibers are electrically coupled to the _______ cells |
| Ventricles | | Action potential moves to the ventricules via this portion of the conducting system |
| Incompetent | | EDV - ESV |
| Mitochondria | | More blood returning to the heart will stretch the ventricular myocardium and a more forceful contraction will occur |
| Calcium | | Relaxation phase of the cardiac cycle |
| Acute | | Pattern cardiac myocytes form |
| Bradycardia | | Slow than normal heart beat (<60 beats/min) |
| Syncytium | | Rapid heart rate (greater than 100 beats/min) |
| Sympathetic | | Once a mechanical valve is placed the patient must be on ______ therapy for the rest of their life. |
| AVnode | | Initation of an action potential occurs here. |
| Stenoic | | Enlargement of heart muscle due to disease or exercise |
| CardiacCycle | | Sodium leaks into the nodal cells via these channels |
| SinoatrialNode | | 85% of the oxygen within the heart is used during this phase |
| JunctionalRhythm | | The percentage of blood ejected from the heart is known as the ________ |
| StrokeVolume | | Divsion of the autonomic system that increases the rate and force of contraction of the heart |
| Volume | | The influx of this ion results in the plateau phase of the cardiac myocyte |
| Automaticity | | SV X HR |
| Contractile | | Narrow valve oriface is said to be ___________. |
| FattyAcids | | Cell junction responsible for ion movement between myocytes |
| Diastole | | A group of cells that function as a unit. |
| Tachycardia | | Cardiac myocytes burn this for energy in a fasting state |
| Arrhythmia | | Renegade cells are firing |
| IsovolumetricContraction | | Irregular heart beat due to uncoordinated electrical events |
| CardiacOutput | | This nerve slow SA node depolarization |
| Systole | | 85% of the work of the heart is __________ work used to open the semilunar valves |
| BundleofHis | | 23-40% of the myocytes cell volume is composed ot these organelles |
| RightAtrium | | The location of both regions of nodal cells |
| EctopicFocus | | Pressue is 25/0 mmHg |
| Tetanic | | At rest the heart completes this in 0.8 Sec |
| Preload | | This portion of the conducting system will set the pace of the heart if the SA node is no longer functioning |
| Funny | | The volume of blood in the ventricles immediately prior to contraction |
| Branched | | AV node is pacing |
| Anticlotting | | Lower chambers that pump the same volume at the same time |
| Hyperthrophy | | 99% of the myocytes are ______________. |
| EjectionFraction | | The term used to describe the myocytes abiltity to generate an action potential without nervous input |
