Blood Flow (pg 1)

Question 1

where does blood flow from the upper extremity go

Answer 1

SVC (superior vena cava)

Question 2

where does blood from the lower extremity go

Answer 2

IVC (inferior vena cava)

Question 3

what is the exception for blood drainage

Answer 3

Azygous vein drains lumbars in SVC

if IVC ever got blocked this could take over-detour

Question 4

within the right atrium how much blood passively flows into the right ventricle

Answer 4

80%

Question 5

within the right atrium how much blood needs atrial contraction

Answer 5

20%

Question 6

where does the P wave start

Answer 6

at SA node in Crista Terminals of R atrium

Question 7

where does the SA node impulse travel to

Answer 7

AV node

Question 8

what is the AV-nodal delay

Answer 8

SA node impulse to AV node and delayed (P-R interval)

allows time for last 20% of blood to get into the right ventricle

Question 9

how many ml are in the right ventricle at the end of diastole

Answer 9

120

Question 10

what sound is made when the tricuspid valve closes within the right ventricle

Answer 10

S-1 heart sound

Question 11

what type of contraction is occurring when the tricuspid valve closes

Answer 11

isovolumetric contraction

Question 12

what happens when the ventricle contracts

Answer 12

ventricular depolarization

QRS complex

Question 13

when does the pulmonary artery open

Answer 13

mid systole

enough pressure to blow open the pulmonic semilunar valves

Question 14

how does blood leave the right ventricle

Answer 14

exits via two pulmonary arteries to lungs

Question 15

what type of blood do the pulmonary arteries carry

Answer 15

DE-oxygenated blood

Question 16

what is the pulmonary artery in a fetus

Answer 16

umbilical artery

Question 17

how does the blood get oxygenated in the lungs

Answer 17

Bohr effect

Question 18

how many O2 molecules to a hemoglobin

Answer 18

4

Question 19

how much hemoglobin is saturated with O2

Answer 19

97%

Question 20

how does blood exit the lungs

Answer 20

4 pulmonary veins into left atrium

Question 21

where is the highest O2 in cardiac system

Answer 21

pulmonary veins

Question 22

what type of blood do the pulmonary veins carry

Answer 22

oxygenated

Question 23

what is the pulmonary vein in a fetus called

Answer 23

umbilical vein

Question 24

how much blood passively flows into left atrium

Answer 24

80%

Question 25

20% of blood needs what to fill ventricle

Answer 25

Pwave AV nodal delay

Question 26

within the left ventricle what is occurring when the mitral valve closes

Answer 26

isovolumetric contraction

Question 27

what happens during mid systole in the left ventricle

Answer 27

aortic valve open 70 ml blood rushes into aorta

Question 28

what sound is made with the aortic valve closes

Answer 28

S2 heart sound

Question 29

when S2 heart sound is heard what type of contraction is taking place

Answer 29

isovolumetric relaxation

Question 30

during isovolumetric relaxation how much blood remains in the ventricles

Answer 30

50 ml

Question 31

what houses the arch of the azygous

Answer 31

middle mediastinum

Question 32

where is the azygous vein located

Answer 32

posterior mediastinum