3rd quarter phys rev Word Scramble
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| Question | Answer |
| Path of blood from heart | artery, arteriole, capillary, venule, vein |
| largest blood vessel | artery |
| where gasses & nutrients are exchanged | capillaries |
| eurethrocytes | red blood cells |
| leukocytes | white blood cells |
| thrombocytes | clotting cells (platelets) |
| coronary artery | artery that supplies myocardium of heart |
| thickest muscle of heart | Left Ventricle |
| when pressure inside ventricle is higher than that in the atria | AV valves shut to prevent backflow of blood |
| Pulmonary artery | Blood vessel that carries deO2 blood to the lungs |
| Left AV valve | Mitral/Bicuspid |
| AV Valves attached w/ | tendon chords to papillary muscles |
| separates thoracic cavity from abdominal cavity | Diaphram |
| pulmonary trunk divides into... | left and right pulmonary artery |
| ability to self excite | autorythmicity |
| conduction system of heart | SA node, AV node, av bundle (of HIS), bundle branches, perkinje fibers |
| SA node | Pacemaker of heart |
| end diastolic volume | amount of blood in ventricle before contraction |
| end systolic volume | amount of blood in ventricles after contraction |
| Stroke volume | End diastolic - end systolic |
| Epinephrine | released by sympathetic NS raises heart rate |
| Thyroid | increases heart rate |
| when pressure in left Ventricle is greater than in aota... | Aortic semi-lunar valve opens & blood is ejected out of heart |
| attaches to hemoglobin giving blood its red color | oxygen |
| gap junction | electrical connect in cardiac muscle |
| parasympathetic nerve that effects SA & AV node | Vagus #10 |
| contractility | muscles ability to generate force |
| force | pressure forcing blood out of ventricles |
| Starlings Law | when rate of blood flow to heart from veins increases/decreases heart automatically adjusts to match outflow |
| increased venous return = | increased ventricular output |
| preload | amount of blood in ventricles before they contract |
| afterload | pressure in aorta during ejection phase |
Created by:
goodbunn
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