chapter 13- respiratory and circulatory systems Flashcards
what is the flow of blood
deoxygenated blood-> IVC and SVC-> RA -> tricuspid valve-> RV -> pulmonary semilunar valves-> pulmonary arteries-> lungs -> pulmonary veins -> LA-> bicuspid valve -> LV -> aortic semilunar valve
what is the pathway of electrical stimulation in the heart
SA node-> AV node -> bundle of his -> purkinje fibers
describe arteries
thick walled, muscular, elastic
describe veins
thin walled inelastic vessels
what is the clotting cascade
thromboplastin-> prothrombin -> thrombin -> fibrinogen -> fibrin
what muscles contract during inhalation
external intercostals
what is the tidal volume
volume of air moved during normal breath
what is the inspiratory reserve volume
volume of air that could be additionally inhaled into lungs at the end of a normal resting inhalation
what is the expiratory reserve volume
volume of air left in lungs at end of normal exhalation
what is the vital capacity
volume of air moved during a maximum inhalation followed by maximum exhalation