REMSA EMT Division 2 Latest Update Rated A

REMSA EMT Division 2 Latest Update Rated A MI typical presentation -chest pain that won't go away -pain in chest, jaw, back, shoulders, crushing, heavy pressure -SOB, diaphoresis, pulmonary congestion -nausea and vomiting -skin cool and clammy -sense of impending doom Hemophilia hereditary disease where blood does not coagulate to stop bleeding -genetic disorder, usually effects men, X chromosome carrier Hemophilia A: factor 8 deficiency (effect clotting cascade) Hemophilia B: factor 9 deficiency (effect clotting cascade) pulmonary circulation pathway (7) 1. superior & inferior vena cava 2. right atrium 3. right ventricle 4. pulmonary artery 5. lungs 6. pulmonary veins 7. left atrium systemic circulation pathway (9) 1. pulmonary veins 2. left atrium 3. bicuspid/mitral valve 4. left ventricle 5. aortic semilunar valve 6. aorta 7. body tissues 8. sup/inf vena cava 9. right atrium Arteries take ___ blood ___ the heart oxygenated ; away from Veins take ___ blood ___ the heart deoxygenated ; back to only ARTERY that carries deoxygenated blood pulmonary artery only VEIN that carries oxygenated blood pulmonary vein Valves of the heart (4) (Tiny Puppies Bite Ankles/Toilet Paper My Ass) Tricuspid valve (RA/RV) Pulmonary semilunar valve (RV) Bicuspid/Mitral valve (LA/LV) Aortic semilunar valve (LV) semilunar valves pulmonary & aortic atrioventricular valves valves between the atria and ventricles Tricuspid & Bicuspid/Mitral veins → _______ → capillaries → ______ → arteries venules ; arterioles pacemaker cells regularly produce spontaneous electrical impulses conductive cells carry electrical signals contractile cells responsible for contraction SA node (sinoatrial node) firing rate: 60-100 bpm -pacemaker of the heart -sets the heartbeat rate -located in the right atrium -causes atria to contract AV node (atrioventricular node) firing rate: 40-60 bpm -conduction relay node between the atria and ventricles -signal from the SA node travels through the AV node to the ventricles Purkinje fibers firing rate: