Download Peripheral lab

Anatomy & Physiology I
Peripheral Vascular System
1. Arteries & Veins
a) Arteries are high or low pressure vessels (circle correct answer).
b) Arteries always carry blood away from the heart. True or False
c) Veins always carry deoxygenated blood. True or False
2. Varicose veins
a) What are varicose veins?
b) What causes varicose veins?
c) What happens to the blood when varicose veins occur?
3. Hemodynamics
(velocity of blood flow)
a) What is the velocity of blood flow?
b) What is circulation time?
(volume of blood flow)
a) What is cardiac output?
b) Name 2 factors that influence cardiac output.
(blood pressure)
a) What is blood pressure & what causes it?
b) If heart rate increases cardiac output does blood pressure rise or fall?
c) Does pressure fall or rise in systemic circulation with distance from left
ventricle?
d) How much does blood volume have to decrease for blood pressure to drop?
e) Does water retention increase or decrease blood pressure
(resistance)
a) What is resistance?
b) What are 3 variables that affect resistance?
______________________-
______________________-
______________________-
c) The 3 variables above make what?
d) How do arterioles control blood pressure?
(venous return)
a) What is venous return?
b) Venous return depends on _____________________ difference from venules
(16mmHg) to right atrium (0mmHg)
c) If tricuspid valve is leaky will it cause a build up or loss of blood on venous side
of circulation?
d) What is a skeletal muscle pump?
e) What is a respiratory pump?
4. Syncope
a) What is syncope?
b) What are 4 causes of syncope?
5. Input to the Cardiovascular Centre – Match the appropriate definitions with the
correct #.
1-higher brain centres
2-proprioceptors
3-barorceptors
4-chemoreceptors
______input during physical activity
______anticipation of competition, increase in body temperature
______monitor concentration of chemicals in the blood
______changes in pressure within blood vessels
6. What does a carotid sinus massage have to do with syncope?
7. What is shock and how does it affect homeostasis?
8. Pulse points-label the specific diagrams with the correct name
a)
b)
______________________________
c)
_______________________________
d)
______________________________
e)
_______________________________
f)
______________________________
g)
_______________________________
h)
______________________________
_______________________________
9. Which arteries branch off the aorta to supply the heart muscle?
10. Venipuncture
a) Where is venipuncture normally performed in adults?
b) Where is it performed in infants?
11. Label the following diagrams and use the answer key on the back page to check
your answers.
ARTERIES
VEINS
Aorta- ascending
aortic arch
thoracic
abdominal
common carotid
internal carotid
external carotid
vertebral
brachiocephalic
subclavian
axillary
brachial
radial
ulnar
superficial & deep palmar arches
coronary
common hepatic
splenic
gastric
superior mesenteric
renal
inferior mesenteric
common iliac
external iliac
internal iliac
femoral
deep femoral
popliteal
anterior tibial
posterior tibial
dorsalis pedis
superior vena cava
inferior vena cava
brachiocephalic
subclavian
internal jugular
external jugular
vertebral
axillary
brachial
cephalic
basilic
medial cubital
radial
ulnar
great cardiac
hepatic
hepatic portal
splenic
superior mesenteric
inferior mesenteric
renal
common iliac
external iliac
internal iliac
femoral
greater saphenous
popliteal
anterior tibial
posterior tibial
peroneal
Arteries of the Brain
 arterial shunts called the
connect the
posterior cerebral arteries and the middle cerebral arteries. There are two (2), a
right and a left.
 An anterior communicating artery (only 1), joins the right and left anterior
cerebral arteries
 Together these vessels form an arterial anastomosis called the
_____________________
 An anastomosis functions to provide alternate routes for blood to reach an
area if an occlusion occurs. (ie blood clot)