anatomy quiz/ exam 3 Questions with
Correct Answers
systole - ANSWERSheart contraction
pumping blood forward
diastole - ANSWERSrelaxation
back pressure on aortic semilunar valve
stroke volume - ANSWERSamount of blood ejected in LV/RV
SV = - ANSWERSEDV - ESV (end diastolic volume - end systolic volume)
cardiac reserve - ANSWERSblood in heart after ejection
cardiac output - ANSWERSamount of blood pumping out per minute
3 types of blood vessels - ANSWERSartery
vein
capillary
3 vessel layers - ANSWERS1. tunica interna
2. tunica media
3. tunica externa
tunica interna facts - ANSWERSinner most layer facing blood
continuous with inside of heart
smooth, slimey
repels blood until its damaged
collagen fibers stick to platelets when damaged
what are the 3 types of resistance arteries - ANSWERSconducting
distributing
arteriole
conducting arteries facts - ANSWERSwithstands pressure
closest to heart
elastic fibers (stretch and recoil)
what is the inner layer made up of in the conducting arteries - ANSWERSsimple
squamous epithelium
, what is the middle later made up of in the conducting arteries - ANSWERSsmooth
muscle and elastin
distributing arteries facts - ANSWERSstill under high pressure
Smooth muscle
arteriole facts - ANSWERSdictates how much blood goes to each organ
what are capillaries - ANSWERSperfusing tissue
3 types of veins - ANSWERSvenule, medium, large
venule facts - ANSWERSother side of capillary bed
not as much tunica media
medium facts - ANSWERSvalves prevent backflow
large - ANSWERSleast amount of pressure
returning to heart
3 types of capillaries - ANSWERScontinuous
fenestrated
sinusoid
continuous facts - ANSWERSleast permeable
lungs, skin, muscles, SNS
-> CO2, O2 (non-polar)
-> simple diffusion
fenestrated - ANSWERSlarge pores
-> allows for larger molecules to move through
kidneys, small intestines
sinusoid - ANSWERSmost permeable
liver, bone marrow, spleen, adrenal medulla
no pores
huge gaps
2 circulatory routes - ANSWERScapillary beds
portal system
arteriovenous amastomoses
what is the simplest pathway - ANSWERScapillary beds
how many capillary beds are in the portal system - ANSWERS2
Correct Answers
systole - ANSWERSheart contraction
pumping blood forward
diastole - ANSWERSrelaxation
back pressure on aortic semilunar valve
stroke volume - ANSWERSamount of blood ejected in LV/RV
SV = - ANSWERSEDV - ESV (end diastolic volume - end systolic volume)
cardiac reserve - ANSWERSblood in heart after ejection
cardiac output - ANSWERSamount of blood pumping out per minute
3 types of blood vessels - ANSWERSartery
vein
capillary
3 vessel layers - ANSWERS1. tunica interna
2. tunica media
3. tunica externa
tunica interna facts - ANSWERSinner most layer facing blood
continuous with inside of heart
smooth, slimey
repels blood until its damaged
collagen fibers stick to platelets when damaged
what are the 3 types of resistance arteries - ANSWERSconducting
distributing
arteriole
conducting arteries facts - ANSWERSwithstands pressure
closest to heart
elastic fibers (stretch and recoil)
what is the inner layer made up of in the conducting arteries - ANSWERSsimple
squamous epithelium
, what is the middle later made up of in the conducting arteries - ANSWERSsmooth
muscle and elastin
distributing arteries facts - ANSWERSstill under high pressure
Smooth muscle
arteriole facts - ANSWERSdictates how much blood goes to each organ
what are capillaries - ANSWERSperfusing tissue
3 types of veins - ANSWERSvenule, medium, large
venule facts - ANSWERSother side of capillary bed
not as much tunica media
medium facts - ANSWERSvalves prevent backflow
large - ANSWERSleast amount of pressure
returning to heart
3 types of capillaries - ANSWERScontinuous
fenestrated
sinusoid
continuous facts - ANSWERSleast permeable
lungs, skin, muscles, SNS
-> CO2, O2 (non-polar)
-> simple diffusion
fenestrated - ANSWERSlarge pores
-> allows for larger molecules to move through
kidneys, small intestines
sinusoid - ANSWERSmost permeable
liver, bone marrow, spleen, adrenal medulla
no pores
huge gaps
2 circulatory routes - ANSWERScapillary beds
portal system
arteriovenous amastomoses
what is the simplest pathway - ANSWERScapillary beds
how many capillary beds are in the portal system - ANSWERS2
