BIOL 3150 CHAPTER 23 EXAM QUESTIONS AND ANSWERS
WITH COMPLETE SOLUTIONS
Are blood vessels dynamic?
yes
Anastomosis
2 arteries/veins converge instead of going through capillary
Are anastomosis more common in veins or arteries?
veins
End Artery
1 path in
Functional End Artery
have anastomosis but it's so small it functions like end artery
Companion Vessels
pairs of vessels (1 artery and 1 vein) running together parallel to each other
What is the functional location of blood vessels?
capillaries (site of exchange via diffusion)
Are arteries or veins more elastic?
arteries
Tunica Externa
outer layer of vessels anchoring it to other structures made of areolar tissue and
collagen and elastic fibers
Tunica Media
, middle layer of vessels made of smooth muscle cells
Tunica Intima
inner layer of vessels made of endothelium and subendothelial layer
What type of tissue is the subendothelial layer made of?
areolar connective tissue
Is the tunica media thicker in arteries or veins?
arteries
Is the tunica intima convoluted or straight?
convoluted
What does the vasa vasorum extend through?
tunica externa
Do all blood vessels have a vasa vasorum?
no (only large ones)
Are the internal and external elastic lamina in arteries or veins?
arteries
Do veins transport blood toward or away from heart?
toward heart
Do arteries transport blood toward or away from heart?
away from heart
Do veins have a wide or narrow lumen?
wide
Do arteries have a wide or narrow lumen?
narrow
WITH COMPLETE SOLUTIONS
Are blood vessels dynamic?
yes
Anastomosis
2 arteries/veins converge instead of going through capillary
Are anastomosis more common in veins or arteries?
veins
End Artery
1 path in
Functional End Artery
have anastomosis but it's so small it functions like end artery
Companion Vessels
pairs of vessels (1 artery and 1 vein) running together parallel to each other
What is the functional location of blood vessels?
capillaries (site of exchange via diffusion)
Are arteries or veins more elastic?
arteries
Tunica Externa
outer layer of vessels anchoring it to other structures made of areolar tissue and
collagen and elastic fibers
Tunica Media
, middle layer of vessels made of smooth muscle cells
Tunica Intima
inner layer of vessels made of endothelium and subendothelial layer
What type of tissue is the subendothelial layer made of?
areolar connective tissue
Is the tunica media thicker in arteries or veins?
arteries
Is the tunica intima convoluted or straight?
convoluted
What does the vasa vasorum extend through?
tunica externa
Do all blood vessels have a vasa vasorum?
no (only large ones)
Are the internal and external elastic lamina in arteries or veins?
arteries
Do veins transport blood toward or away from heart?
toward heart
Do arteries transport blood toward or away from heart?
away from heart
Do veins have a wide or narrow lumen?
wide
Do arteries have a wide or narrow lumen?
narrow
