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NUR 354 Exam 2 set 1 Questions and Answers
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NUR 354 Exam 2 set 1 Questions and Answers
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NUR 354 Exam 2 set 1 Questions andAnswers
function of the heart - Answer-the pump that delivers blood to the lungs to be
oxygenated and then to the systemic circulation to supply oxygen to the tissues
what are the layers of the heart - Answer-endocardium
myocardium
epicardium
pericardium and pericardial sac
endocardium - Answer-inner layer with the valves
myocardium - Answer-muscle layer of the heart
epicardium - Answer-area around the outside of the heart
pericardium - Answer-Double-layered membrane surrounding the heart.
how much fluid is in the pericardial sac - Answer-10-15 ml
electrical property of the heart - Answer-prepares the heart to contract
how to record the electrical activity of the heart - Answer-ECG
what does the electrical property of the heart consist of - Answer-electrical stimulus
depolarization
electrical stimulus - Answer-initating factor
pacemaker cells to initate heartbeat
depolarization - Answer-producing factor
contracts the ventricle and atrium of the heart
normal conduction pathway - Answer-SA node
atria
, internodal pathways
AV node
bundle of HIS
bundle branches
purkinje fibers
ventricular musculature
contraction
mechanical property of the heart - Answer-pumping action
what does pumping of the heart consist of - Answer-systole
diastole
systole - Answer-period of contraction
diastole - Answer-Period of relaxation of the heart.
what confirms the mechanical action of the heart - Answer-apical pulse
what can we do to measure mechanical activity of the heart - Answer-cardiac output
cardiac index
blood pressure
preload
afterload
contractility
preload - Answer-volume of blood in ventricles at end of diastole
afterload - Answer-resistance left ventricle must overcome to circulate blood
blood flow through right side of heart - Answer-SVC and IVC to right atrium to tricuspid
valve to right ventricle to pulmonic valve to pulmonary artery to lungs
Is the right side oxygenated or deoxygenated? - Answer-deoxygenated
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