GMS6530 FINAL_1 EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED LATEST UPDATE
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Module
GMS6530
Institution
GMS6530
GMS6530 FINAL_1 EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED LATEST UPDATE
layers of the heart (inner to outer)
- endocardium
- myocardium
- epicardium (visceral pericardium)
function of valves
prevent backflow of blood
valves open and close in response to
pressure changes as...
pressure changes as the heart contracts and relaxes
AV valves
between atria and ventricles
semilunar valves
prevent backflow of blood from arteries into the heart
blood flow and supply of the heart
1. right atrium
2. right ventricle (thru tricuspid)
3. pulmonary trunk/arteries
, 4. pulmonary capillaries
5. pulmonary veins
6. left atrium
7. left ventricle (thru bicuspid/mitral)
8. aorta
9. capillaries of head and limbs
10. vena cava
why do action potentials slow at the AV node
to provide time for the atria to empty their blood into the ventricles
what is an ECG/EKG
electrocardiogram; recording of the electrical changes that accompany the heartbeat
P wave represents
atrial depolarization (causes contraction)
QRS complex
represents ventricular depolarization
T wave
ventricular repolarization
why is there no atrial repolarization wave?
there is, it just gets masked by much stronger QRS complex
cardiac output (CO)
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