chapter 13- respiratory and circulatory systems

Question 1

what is the flow of blood

Answer 1

deoxygenated blood-> IVC and SVC-> RA -> tricuspid valve-> RV -> pulmonary semilunar valves-> pulmonary arteries-> lungs -> pulmonary veins -> LA-> bicuspid valve -> LV -> aortic semilunar valve

Question 2

what is the pathway of electrical stimulation in the heart

Answer 2

SA node-> AV node -> bundle of his -> purkinje fibers

Question 3

describe arteries

Answer 3

thick walled, muscular, elastic

Question 4

describe veins

Answer 4

thin walled inelastic vessels

Question 5

what is the clotting cascade

Answer 5

thromboplastin-> prothrombin -> thrombin -> fibrinogen -> fibrin

Question 6

what muscles contract during inhalation

Answer 6

external intercostals

Question 7

what is the tidal volume

Answer 7

volume of air moved during normal breath

Question 8

what is the inspiratory reserve volume

Answer 8

volume of air that could be additionally inhaled into lungs at the end of a normal resting inhalation

Question 9

what is the expiratory reserve volume

Answer 9

volume of air left in lungs at end of normal exhalation

Question 10

what is the vital capacity

Answer 10

volume of air moved during a maximum inhalation followed by maximum exhalation