Pathophys 2 Circulatory Syst

T/F
The central pulmonary system functions under Hi pressure

The systemic circulatory system functions under __ pressure around __mmhg

the circulatory sys is an Open or Closed system

T/F the Ht circulations in only one direction

which is the correct direction of flow for the pulmonary/central circulatory system?

a) rt ht -> pulmon vein -> arterioles, capillaries, veins
b) rt ht -> pulmon artery -> arterioles, capillaries, veins
c) lft ht -> pulmon artery -> arterioles, capillaries, veins
d) lft ht -> aorta -> arterioles, capillaries, veins

which is the correct direction of flow for the systemic/peripheral circulatory system?

a) rt ht -> pulmon vein -> arterioles, capillaries, veins
b) rt ht -> pulmon artery -> arterioles, capillaries, veins
c) lft ht -> pulmon artery -> arterioles, capillaries, veins
d) lft ht -> aorta -> arterioles, capillaries, veins

newborns have a higher/lower blood volume than adults?

Which has the highest blood volume?

a) left ht
b) rt heart
c) arteries
d) veins
e) none

why is the venous system able to hold the highest blood volume?

what is required for blood to move from one system to another?

a) gravity
b) difference in volume
c) difference in pressure
d) all
e) none

blood returning to the heart from the rest of the body enters the ___

a) Rt ht
b) left ht
c) aorta
d) pulmonary vein

t/f

all veins carry oxygen poor blood

t/f

bp reflects the central circularity syst

where is the ht located?

where is the heartbeat the strongest?

this layer of the ht has parietal and visceral layers containing serous fluids

a) pericardium
b) myocardium
c) endocardium
d) none

approx how many ml of serous fluid are located between the layers of the pericardium

a) 10-30ml
b) 30-50ml
c) 50-70ml
d) non

how many layers does the endocardium have?

the endocardium is located where?

a) lining ht
b) lining BVs
c) a/b
d) none

____ and ___ are the main fibers that constitute valves

T/F the max HR for an athletic 40 y.o. male is difference that a non athletic 40 y.o. male

T/F
preload requires more force than afterload

what is the relationship between intrathoracic pressure and blood volume

t/f
venous return increases while inhaling

t/f

venous return increases while exhaling

during diastole
a) ventricle fills
b) atrium fills
c) ventricle empties
d) atrium empties

during systole
a) ventricle fills
b) atrium fills
c) ventricle empties
d) atrium empties

which structure prevents eversion of valves

the bicuspid valve
a) separates R atrium/ventricle
b) separates L atrium/ventricle
c) prevents backflow of blood entering aorta
d)prevents backflow of blood entering the pulmonary artery

the tricuspid valve
a) separates R atrium/ventricle
b) separates L atrium/ventricle
c) prevents backflow of blood entering aorta
d)prevents backflow of blood entering the pulmonary artery

semilunar valves have ___cusps and serve what purpose

what is the SV?

what is the ejection fraction

what is cardiac output

what is the avg CO?

define cardiac reserve

according to the Frank Starling law, increasing the EDV will

a) decrease force of contraction
b) increase the force of contraction
c) force of contraction will stay the same
d) none

the P wave is related to ___ in an ekg

a) atrial filling
b) atrial contraction
c) ventricular filling
d) ventricular contraction

atrial filling depends on
a) atrial pressure
b) atrial volume
c) intrathoracic pressure
d) a/b
e) all
f) non

ventricular systole consists of
a) isovolumetric contraction
b) rapid ejection
c) isovolumetric relaxation
d) All

which phase closes aoritc/pulmonic valves?

which phase of the cardiac cycle closes A-V valves?

During ventricular diastole
a) pressure drops due to isovolumetric relaxation
b) A-V valves open
c) rapid filling
d) a/c
e) All

T/F the HT can change the force of contraction without changing the resting length

describe the inotropic effect