BSC-216 EXAM 1 UA QUESTIONS & ANSWERS
What vessels typically carry blood away from the heart?
- capillaries
- veins
- venules
- arteries - Answer -Arteries
Place in order from superficial to deep the three tunics of a typical blood vessel.
A. tunica media, tunica intima, tunica externa
B. tunica externa, tunica intima, tunica media
C. tunica intima, tunica media, tunica externa
D. tunica externa, tunica media, tunica intima - Answer -tunica externa, tunica media,
tunica intima
Which of the following arteries has the smallest diameter?
A. metarteriole
B. elastic artery
C. muscular artery
D. arteriole - Answer -metarteriole
Which blood vessel tunic is innervated by nerves from the sympathetic nervous system?
A. tunica adventitia
B. tunica externa
C. tunica intima
D. tunica media - Answer -Tunica Media
What type of vessel is built to handle the highest pressure of any vessel in the
cardiovascular system?
A. arteriole
B. muscular artery
C. elastic artery
D. metarteriole - Answer -elastic artery
Which of the following is TRUE of veins?
A. Veins have smaller lumens than arteries.
B. Veins have thinner walls than arteries.
C. Veins have more smooth muscle than arteries.
,D. have more elastic fibers than arteries. - Answer -Veins have thinner walls than
arteries.
Which vessels serve as the blood reservoirs of the body?
muscular arteries
metarterioles
veins
arterioles - Answer -veins
Arteries in the systemic circuit carry oxygenated blood while arteries in the pulmonary
circuit transport deoxygenated blood.
True
False - Answer -True
Veins regulate blood pressure and control blood flow to organs.
True
False - Answer -False
Compared to veins, arteries have __________.
thicker tunica media
more valves
larger lumen
lower pressure - Answer -Thicker tunica media
Which of the following describes an anastomosis?
A. vessels supplying the tunica media and tunica external of blood vessels
B. a special type of circuit in which veins feed a capillary bed
C. smallest arterioles which directly feed capillary beds
D. an artery empties directly into a vein without passing through a capillary bed -
Answer -an artery empties directly into a vein without passing through a capillary bed
Which of the following will cause in increase in peripheral resistance?
Blood Vessel Length
Vessel Diameter
Blood Viscosity
Obstruction in Vessels - Answer -Obstruction in Vessels
Peripheral resistance includes all of the following EXCEPT:
blood vessel length.
, vessel radius.
blood viscosity.
blood type. - Answer -Blood Type
Which vessels are the most compliant?
systemic veins
systemic arteries
systemic metarterioles
systemic arterioles - Answer -systemic veins
Which blood vessels experience the sharpest decrease in blood pressure?
systemic capillary beds
systemic venules
systemic arterioles
systemic veins - Answer -systemic arterioles
Which blood vessels handle the highest blood pressure?
systemic arteries
pulmonary veins
pulmonary arteries
systemic veins - Answer -systemic arteries
Which of the following vessels has the lowest blood pressure?
elastic arteries
capillary beds
inferior vena cava
aorta - Answer -inferior vena cava
Archie took several deep breaths of air. By breathing deeply, what mechanism did he
assist to return blood to his heart?
skeletal muscle pump
respiratory pump
mean arterial pressure (MAP)
Korotkoff sounds - Answer -respiratory pump
Which of the following is NOT a mechanism used to return venous blood to the heart?
elastic fibers
skeletal muscle pump
venous valves
respiratory pump - Answer -elastic fibers
What vessels typically carry blood away from the heart?
- capillaries
- veins
- venules
- arteries - Answer -Arteries
Place in order from superficial to deep the three tunics of a typical blood vessel.
A. tunica media, tunica intima, tunica externa
B. tunica externa, tunica intima, tunica media
C. tunica intima, tunica media, tunica externa
D. tunica externa, tunica media, tunica intima - Answer -tunica externa, tunica media,
tunica intima
Which of the following arteries has the smallest diameter?
A. metarteriole
B. elastic artery
C. muscular artery
D. arteriole - Answer -metarteriole
Which blood vessel tunic is innervated by nerves from the sympathetic nervous system?
A. tunica adventitia
B. tunica externa
C. tunica intima
D. tunica media - Answer -Tunica Media
What type of vessel is built to handle the highest pressure of any vessel in the
cardiovascular system?
A. arteriole
B. muscular artery
C. elastic artery
D. metarteriole - Answer -elastic artery
Which of the following is TRUE of veins?
A. Veins have smaller lumens than arteries.
B. Veins have thinner walls than arteries.
C. Veins have more smooth muscle than arteries.
,D. have more elastic fibers than arteries. - Answer -Veins have thinner walls than
arteries.
Which vessels serve as the blood reservoirs of the body?
muscular arteries
metarterioles
veins
arterioles - Answer -veins
Arteries in the systemic circuit carry oxygenated blood while arteries in the pulmonary
circuit transport deoxygenated blood.
True
False - Answer -True
Veins regulate blood pressure and control blood flow to organs.
True
False - Answer -False
Compared to veins, arteries have __________.
thicker tunica media
more valves
larger lumen
lower pressure - Answer -Thicker tunica media
Which of the following describes an anastomosis?
A. vessels supplying the tunica media and tunica external of blood vessels
B. a special type of circuit in which veins feed a capillary bed
C. smallest arterioles which directly feed capillary beds
D. an artery empties directly into a vein without passing through a capillary bed -
Answer -an artery empties directly into a vein without passing through a capillary bed
Which of the following will cause in increase in peripheral resistance?
Blood Vessel Length
Vessel Diameter
Blood Viscosity
Obstruction in Vessels - Answer -Obstruction in Vessels
Peripheral resistance includes all of the following EXCEPT:
blood vessel length.
, vessel radius.
blood viscosity.
blood type. - Answer -Blood Type
Which vessels are the most compliant?
systemic veins
systemic arteries
systemic metarterioles
systemic arterioles - Answer -systemic veins
Which blood vessels experience the sharpest decrease in blood pressure?
systemic capillary beds
systemic venules
systemic arterioles
systemic veins - Answer -systemic arterioles
Which blood vessels handle the highest blood pressure?
systemic arteries
pulmonary veins
pulmonary arteries
systemic veins - Answer -systemic arteries
Which of the following vessels has the lowest blood pressure?
elastic arteries
capillary beds
inferior vena cava
aorta - Answer -inferior vena cava
Archie took several deep breaths of air. By breathing deeply, what mechanism did he
assist to return blood to his heart?
skeletal muscle pump
respiratory pump
mean arterial pressure (MAP)
Korotkoff sounds - Answer -respiratory pump
Which of the following is NOT a mechanism used to return venous blood to the heart?
elastic fibers
skeletal muscle pump
venous valves
respiratory pump - Answer -elastic fibers
