Modules 9 and 10 Flashcards
What portion of the head is NOT supplied blood by the vertebral arteries?
brainstem
cerebellum
spinal cord
scalp
scalp
Fill in the blanks: The common carotid artery bifurcates into the _________ and the _________ arteries.
External carotid
Common subclavian
Internal carotid
External carotid
Internal carotid
Vertebral
Anterior cerebral
Middle cerebral
Internal carotid
External carotid
transducer pressure may cause a normal vein to
collapse
What vessel is partially shadowed by the vertebrae?
vertebral
What is NOT a type of ultrasound modality used to assess the extracranial cerebrovascular system?
Continuous diameter Doppler
Pulsed-wave Doppler
Color Doppler
B-Mode
cont diameter doppler
What is the cause of the vertical shadowing (indicated by the yellow stars) in this image of the vertebral artery?
The shadows represent vessel plaque
The shadows represent criss-crossing veins
The shadows represent vessel occlusion
The shadows represent the transverse processes of the cervical spine
The shadows represent the transverse processes of the cervical spine
What might be a reason to perform a carotid Doppler exam on a patient?
Swelling of the limbs
Symptoms of stroke
Palpation of a carotid pusle
Random headaches
symptoms of stroke
Vessel #1 is identified as the ___________ artery.
Right common carotid artery
Left brachiocephalic artery
Left common carotid artery
Right brachiocephalic artery
left common carotid artery
Which of the following is a superficial vein in the calf?
The small saphenous vein
The gastrocnemius veins
The posterior tibial veins
The peroneal veins
The small saphenous vein
Identify the perfusion territory of each extracranial cerebral artery.
Anterior brain
Nose
Facial muscles
Tongue
Scalp
Brainstem
Cerebellum
Posterior brain
a. internal carotid artery
b. external carotid artery
c. vertebral artery
Anterior brain - internal carotid artery
Nose - internal carotid a
Facial muscles - external carotid artery
Tongue - external carotid
Scalp - external carotid
Brainstem - vertebral artery
Cerebellum - vertebral artery
Posterior brain - vertebral artery
What is the last stage in the progression of atherosclerosis?
Transient ischemic attack
Development of a stenosis
Intimal thickening
Vessel occlusion
Vessel occlusion
Normal veins [______________] with manual transducer pressure.
compress
expand
augment
compress
This vein is the longest in the body.
Anterior tibial vein
Femoral vein
Popliteal vein
Great saphenous vein
great saphenous
The vessel labeled #4 is the ________ vein.
femoral vein
The [_________________________________] veins are the paired deep veins of the calf.
small saphenous, great saphenous, and peroneal
anterior tibial, posterior tibial, and peroneal
anterior tibial, soleal, and small saphenous
femoral, gastrocnemius, and posterior tibial
anterior tibial, posterior tibial, and peroneal
This vein is NOT located in the thigh.
Great saphenous vein
Profunda vein
Femoral vein
Gastrocnemius vein
Gastrocnemius vein
What is another term for endothelial damage?
Venous stasis
Hypercoagulability
Vessel wall injury
Stroke
vessel wall injury
Which of the following is TRUE?
The vessels included in a carotid Doppler scan include: CCA, ICA, and vertebral vessels but not the ECA.
The right common carotid branches directly from the aortic arch.
The extracranial carotid vessels are conduits for tissue drainage.
The carotid arteries provide a direct pathway for plaque and other particles to enter enter cerebral circulation.
The carotid arteries provide a direct pathway for plaque and other particles to enter enter cerebral circulation.
What is NOT an indication for a lower extremity venous Doppler exam?
.
Acute swelling
b.
Acute redness to the limb
c.
Superficial vein mapping for arterial bypass procedures
d.
Assessment of chronic venous disease
e.
All of the above are indications for a lower extremity venous Doppler exam
e.
All of the above are indications for a lower extremity venous Doppler exam
The [_____________] carotid vessels deliver blood to all parts of the internal, external, and superficial structures of the neck and head.
intracranial
superficial
inferior
extracranial
extracranial
Contraction of the calf muscles [_________________] the veins thus pushing blood toward the heart and toward the feet.
expands
squeezes
distends
squeezes
Which vessel is NOT a tributary of the popliteal vein?
Great saphenous vein
Posterior tibial veins
Small saphenous vein
Gastrocnemius veins
Great saphenous vein
Which of the following applies to blood flow in the veins?
Veins require high pressure from the heart and muscles to expand.
Blood flows actively in the veins, moved by respiration and muscle relaxation.
The smallest vessels for blood flow in the body are the venules.
Veins are a low pressure system so blood flows passively with respiration and muscle contraction.
Veins are a low pressure system so blood flows passively with respiration and muscle contraction.
Why does the pulsed-wave Doppler waveform of the internal carotid artery demonstrate low resistant blood flow patterns?
Because the vessels are found on both the right and left sides of the neck and head
Because of the larger size of the cerebral arteries
Because it is responsible for perfusing the brain, which is an organ that requires a constant supply of blood throughout the cardiac cycle
Because it is responsible for perfusing the brain, which is an organ that does not require a constant supply of blood throughout the cardiac cycle
Because it is responsible for perfusing the brain, which is an organ that requires a constant supply of blood throughout the cardiac cycle
