Exercise 32
Shannon Smith NAME ____________________________________
Felicia Stevenson
R E V I E W
S H E E T
EXERCISE
02/15/2013 LAB TIME/DATE _______________________3/20/2012
32
Print Form
Anatomy of Blood Vessels
Microscopic Structure of the Blood Vessels
1. Cross-sectional views of an artery and of a vein are shown here. Identify each; and on the lines to the sides, note the structural details that enabled you to make these identifications:
Artery
(vessel type)
vein
(vessel type)
thick
(a)
shape
(a)
round
(b)
thin
(b)
Now describe each tunic more fully by selecting its characteristics from the key below and placing the appropriate key letters on the answer lines. d,e b,f a,c Tunica intima Tunica media Tunica externa Key: a. b. c. d. innermost tunic most superficial tunic thin tunic of capillaries especially thick in elastic arteries e. f. contains smooth muscle and elastin has a smooth surface to decrease resistance to blood flow
2. Why are valves present in veins but not in arteries?
it helps with the pressure to pump blood
3. Name two events occurring within the body that aid in venous return. respiratory muscular and 4. Why are the walls of arteries proportionately thicker than those of the correspondin
with blood being pumped
directly into to the arteries, it has more pressure on the arteries
211
Major Systemic Arteries and Veins of the Body
5. Use the key on the right to identify the arteries or veins described on the left. Key: a. b. c. d. 3. two paired arteries serving the brain 4. longest vein in the lower limb 5. artery on the dorsum of the foot checked after leg surgery 6. serves the posterior thigh 7. supplies the diaphragm 8. formed by the union of the radial and ulnar veins , e. f. g. h. i. j. k. l. anterior tibial basilic brachial brachiocephalic celiac trunk cephalic common carotid common iliac coronary deep artery of the thigh dorsalis pedis external carotid
d i r o
,
1. the
Felicia Stevenson
R E V I E W
S H E E T
EXERCISE
02/15/2013 LAB TIME/DATE _______________________3/20/2012
32
Print Form
Anatomy of Blood Vessels
Microscopic Structure of the Blood Vessels
1. Cross-sectional views of an artery and of a vein are shown here. Identify each; and on the lines to the sides, note the structural details that enabled you to make these identifications:
Artery
(vessel type)
vein
(vessel type)
thick
(a)
shape
(a)
round
(b)
thin
(b)
Now describe each tunic more fully by selecting its characteristics from the key below and placing the appropriate key letters on the answer lines. d,e b,f a,c Tunica intima Tunica media Tunica externa Key: a. b. c. d. innermost tunic most superficial tunic thin tunic of capillaries especially thick in elastic arteries e. f. contains smooth muscle and elastin has a smooth surface to decrease resistance to blood flow
2. Why are valves present in veins but not in arteries?
it helps with the pressure to pump blood
3. Name two events occurring within the body that aid in venous return. respiratory muscular and 4. Why are the walls of arteries proportionately thicker than those of the correspondin
with blood being pumped
directly into to the arteries, it has more pressure on the arteries
211
Major Systemic Arteries and Veins of the Body
5. Use the key on the right to identify the arteries or veins described on the left. Key: a. b. c. d. 3. two paired arteries serving the brain 4. longest vein in the lower limb 5. artery on the dorsum of the foot checked after leg surgery 6. serves the posterior thigh 7. supplies the diaphragm 8. formed by the union of the radial and ulnar veins , e. f. g. h. i. j. k. l. anterior tibial basilic brachial brachiocephalic celiac trunk cephalic common carotid common iliac coronary deep artery of the thigh dorsalis pedis external carotid
d i r o
,
1. the