CO
both sv and Hr must change in order for CO to change
True
False
False
veins get larger the closer to the heart
true
false
true
when blood vessels Increase its diameter, that is called
A.) vasodilation
B.) vascular spasm
C.) vasoconstriction
A.) vasodilation
which type of capillary is most common
sinusoid
continuous
fenestrated
continuous
how many O2 molecules can 1 hemoglobin carry
A.)1
B.)4
C.) 250 mil
D. 1billion
B.)4
Co is defined as
A.) vol of blood pumped by one ventricle in 1 min
B.) how many times per min that the heart beats
C.) how much vol is pumped out of a ventricle each time the ventricle contracts
A.) vol of blood pumped by one ventricle in 1 min
arteries always carry oxygen rich blood
True
false
false
Arteries___ take blood __ the heart
A.)always/away from
B.) Always/ to
A.)always/away from
the process of fluid containing waste goign into blood through the capillary wall is called
A.) vesicular transport
B.) osmosis
C.) Reabsorption
C.) Reabsorption
CO2 is carried mosty in
plasma
erythrocytes
plasma
the max that SV could be fo people is
A cO
B HR
C EDV
D ESV
C EDV
small veins are called
A.) venioles
B.) venitos
C.) venules
D.) venae
C.) venules
BOTH arteries ab dveins have smooth muscle
true
false
true
In continuous capillaries, the main route for substances going through the walls is
A.) intercllular cleft
B.) fenestrations
C.) through the plasma memof endothelial cells
A.) intercllular cleft
in any person which is the largest in volume
EDV
ESV
BOTH
EDV
SV is affected by
A.) EDV and contractility
B.) ESV and BP
C.) HR and CO
A.) EDV and contractility
the B.P in arteries and veins are the same
true
false
false
arteries and veins have a single layer of cells next to their lumen
A.) areolar
B.) endothelial
C.) basement membrane
B.) endothelial
the least common type of capillary is
A.) sinusoid
B.) continuous
C.) fenestrated
A.) sinusoid
Av valves open during
Diastole
systole
Diastole
if person starts getting more dirt in each scoop without changing the speed @ which he is shoveling which of the following has changed
A.) hr
B.) sv
C. hr and sv
D.) SV and CO
D.) SV and CO
compared to veins, arteries have ___ walls, are ___ elastic, and ___ blood pressure.
A.) thinner, less , lower
B.)thicker, more, higher
C.) thicker, less, lower
B.)thicker, more, higher
Which layer of an artery wall contains smooth muscle
A.) tunica intima
B.) tunica media
C.) tunica externa
B.) tunica media
capillary has a single layer of ___ surrounded by ____.
A.) endothelium/basement mem
B.) basement mem/ smooth muscle
c.)smooth muscle/ basement mem
d.) basement mem/ endothelium
A.) endothelium/basement mem
for which of the folowwing are both things listed found in serum
A.) fibrinogen/ water
b antibodies/ co2
c platelets/ protiens
b antibodies/ co2