ACTUAL QUESTIONS AND CORRECT
ANSWERS
the eca provides an anastomotic link to the ica through the orbit via which of the following
vessels - correct answers✔✔superficial temporal artery
major branches of the ophthalmic artery are: - correct answers✔✔frontal, supraorbital and nasal
all of the following arise from the intracranial ica except:
middle cerebral art
anterior cerebral art
ascending pharyngeal art
posterior communicating art - correct answers✔✔ascending pharyngeal
the ophthalmic art is a branch of the: - correct answers✔✔ica
in the case of ica occlusion, all of the following are potential collateral pathways to perfuse the
ipsilateral cerebral hemisphere except:
a. contralateral ica through reversed flow in the ipsilateral ant cerebral art
b. vertebrobasilar system through the post communicating art
c. ipsilateral eca through the orbit to the ophthalmic art.
d. contralateral subclavian art to the internal mammary art - correct answers✔✔d. contralateral
subclavian art to the mammary art
,which branch of the eca provides a collateral pathway to the vertebral art - correct
answers✔✔occipital art
in the case of vertebral art occlusion, which vessel is likely to be enlarged - correct
answers✔✔contralateral vertebral art
which vessels make up the circle of willis? - correct answers✔✔distal internal carotid
anterior cerebral
posterior cerebral
which vessel joins the brachial veins to form the axillary vein? - correct answers✔✔basilic
which vein in the antecubital fossa connects the cephalic and basilic veins? - correct
answers✔✔median cubital vein
longest vein in the body is ? - correct answers✔✔great saphenous vein
portal vein is formed by the confluence of which two veins? - correct answers✔✔superior
mesenteric and splenic v
boyd's vein is a perforating vein that connects the gastrocnemius vein to the: - correct
answers✔✔post tib vein
major function of the vasa vasorum is: - correct answers✔✔provide nourishment to the tunica
adventitia
, purpose of semilunar valve of the veins - correct answers✔✔maintain unidirectional flow within
the venous system
which of the following veins has the greatest number of valves? - correct answers✔✔great
saphenous vein
bicuspid valves in the venous system are formed by folds of the - correct answers✔✔intima
reynolds number describes - correct answers✔✔the point at which flow becomes turbulent
definition of laminar flow - correct answers✔✔characterized as normal non turbulent flow
what is subclavian steal? - correct answers✔✔severe stenosis or occlusion in the proximal
subclavian artery. resulting in contralateral retrograde flow in vertebral artery. most frequently
occuring on the left.
unilateral temporary vision loss associated with cerebrovascular disease is known as - correct
answers✔✔amaurois fugax
may occur from embolus coursing from ica to ophthalmic artery
symptom of vertebrobasilar insufficiency - correct answers✔✔diplopia
what is the bernoulli principle - correct answers✔✔states that total fluid energy along the
streamline of fluid flow is constant and that velocity energy and pressure energy are inversely
proportional