UPDATED Exam Questions and CORRECT
Answers
Deoxygenated blood from the upper extremity goes to the: - CORRECT ANSWER -
Superior Vena Cava
Deoxygenated blood from the lumbar goes to the: - CORRECT ANSWER - Azygous vein
then SVC
Deoxygenated blood from the lower extremity goes to the: - CORRECT ANSWER - IVC
Isovolumeric relaxation= - CORRECT ANSWER - Blood flowing into the atria
Isovolumeric contraction= - CORRECT ANSWER - Blood is in the ventricles, valves are
closed, builds pressure in the ventricles
How much of blood passively flows from atrium to ventricle? - CORRECT ANSWER -
80%
How much of blood is actively pushed through the atrium to ventricle via atrial contraction? -
CORRECT ANSWER - 20%
What signals the atria to contract? - CORRECT ANSWER - SA node
What is the pace maker of the heart? - CORRECT ANSWER - SA node
Pulmonary arteries transport what kind of blood to the lungs? - CORRECT ANSWER -
Deoxygenated
, Blood is oxygenated in the lungs due to what? - CORRECT ANSWER - Bohr Effect
Pulmonary veins carry what kind of blood from the lungs to the left atrium? - CORRECT
ANSWER - Oxygenated
What is stroke volume? - CORRECT ANSWER - (End diastolic) - (end systolic)
What is cardiac output? - CORRECT ANSWER - Stroke volume x heart rate
Diastole= - CORRECT ANSWER - Relaxation
Systole= - CORRECT ANSWER - Contraction
What is the 1st heart sound? - CORRECT ANSWER - Closing of AV valves (tricuspid
and bicuspid) —Lub
What is the 2nd heart sound? - CORRECT ANSWER - Closing of semilunar valves
(pulmonic and aortic) — Dub
What is the 3rd heart sound? - CORRECT ANSWER - Ventricular gallop
What heart sound may indicate early signs of CHF in adults, but is normal in children and
athletes? - CORRECT ANSWER - 3rd
What is the 4th heart sound? - CORRECT ANSWER - Atrial gallop (cardiac pathology)
What happens during depolarization of the heart? - CORRECT ANSWER - Sodium
rapidly rushes into the cell