and Verified Answers| 100% Correct- Grade
A (New 2024/ 2025 Update)
QUESTION
Brain
Answer:
Supplied by ICA & Vertebrals
2% of Body's weight
15% CO
20% Total blood supply
QUESTION
3-8 minutes of oxygen deprivation results in
Answer:
cellular death
QUESTION
Bovine Arch
Answer:
Common origin of Lt. CCA and Innominate
QUESTION
ICA
Answer:
Terminates into MCA/ACA and feeds the brain, forehead, eyes, & nose-70-80% from CCA
,QUESTION
ECA
Answer:
Does not feed brain unless needed as collateral circulation
QUESTION
ECA supplies
Answer:
Neck, face, scalp
QUESTION
ECA Branches
Answer:
Superior Thyroid
Ascending Pharyngeal
Lingual
Facial
Occipital
Posterior Auricular
Maxillary
Superficial Thyroid
QUESTION
Vertebral supply
Answer:
Medulla/Inferior cerebellum
,QUESTION
Basilar supply
Answer:
Pons/superior anterior cerebellum
QUESTION
Circle of Willis has atleast ____ variations with the most common being
___________________
Answer:
9; the absence of one or both communicating arteries
QUESTION
What portion of the population has an incomplete CofW?
Answer:
50%
QUESTION
What portion of the population has a complete Cof W?
Answer:
20-25%
QUESTION
Anatomic interrogation
Answer:
B-mode/2D best
, QUESTION
Physiologic/hemodynamic interrogation
Answer:
Spectral/Doppler best
QUESTION
Hemorrhagic Stroke
Answer:
Bleed; HTN
QUESTION
Ischemic Stroke
Answer:
Oxygen interruption; Blood clot/emboli from Atherosclerosis
QUESTION
Which stroke is known to be the 3rd leading cause of death?
Answer:
Ischemic Stroke
QUESTION
Small perforating artery obstruction
Answer:
Occurs in elderly/diabetics