Lesson 1 C2 Flashcards
ECA branches from inferior to inferior
Superior thyroid Ascending pharyngeal Lingual Facial Occipital Posterior auricular Maxillary Superficial temporal
Sally Ann Likes Flirting On Peterboroughs Main Street
What dod collateral vessels do
Reroute blood flow
The most important ECA collaterals are catagorised by what
Those that communicate with the opthalmic or vertebral artery
Which RE TH4 MOST IMPORTANT ECA COLLATERALS
Occipital
Facial
Superficial temporal
Internal maxillary arteries
the portion of the ICA that we scan
Cervical (extracranial)
The ICA is directed
Laterally, dorsally and upwards in the neck
ICA has high or low resistant flow pattern
Low
What is a normal variant of the ICA
Coils
What can coils lead to over time in the ICA
Kinks—>HBP—> stenosis
The ICA supplies most of the _______ circulation of the brain
Anterior
4 portions of the ICA
Cervical
Petrous portion
Cavernous
Supraclinoid
Where is the petrous portion of ICA
Pass through temporal bone at petrous bone
Describe the cavernous portion of the ICA
Tortuous portion where the opthalamic artery branches
Where is the supraclinoid portion
Where branching of the intracranial ICA occurs to form circle of willis
The first intracranial branch is the
Opthalmic artery
The ICA terminates at the
Anterior cerebral artery
Verebral arteries supply ______ circulation of the brain
Posterior
Where do the vertebrals enter the skull
Foramina transversaria
Vertebral arteries give off _____ and ____ branches
Muscular and spinal
The vertebrals leave the cervical spine at the ________ and then loop anteriorly to enter the ________
Atlanto-occiptial interspace
Foramen magnum
The vertebal arterys unite at the _______ to form the ______
Pontomedullary junction
Basilar artery
The vertebral vein is formed from numerous small tributaries which spring from the
Vertebral venous plexus
The vertebral vein travels along side the
Vertebral artery
The vertebral vein empties into the _______ where ___ are located
Innominate vein
Valves are located