VERTEBRO-BASILAR SYSTEM Flashcards
1
Q
WHAT DOES THIS SYSTEM SUPPLY?
A
CERVICAL SPINAL CORD BRAINSTEM CEREBELLUM THALAMUS OCCIPITAL LOBE
2
Q
WHAT ARE THE 4 SEGMENTS OF THE VA?
A
V1 - PREFORMAINAL
V2 - FORAMINAL
V3 - EXTRADURAL
V4 - INTRADURAL & INTRA CRANIAL
3
Q
WHERE DOES THE VA USUALLY ARISE FROM?
A
SUBCLAVIAN ARTERIES
4
Q
WHAT DOES THE VA MAINLY SUPPLY?
A
POSTERIOR FOSSA & OCCIPITAL LOBES
5
Q
WHAT IS THE BA FORMED BY?
A
LEFT & RIGHT VA
6
Q
WHAT ARE THE 3 MAIN BRANCHES OF BA?
A
ACA
PONTINE BRANCHES
SUPERIOR C A
7
Q
WHAT IS THE LARGEST BRANCH OF THE VA AND HAS A HIGHLY VARIABLE ORIGIN?
A
PICA
8
Q
WHAT IS NEAR THE ABDUCENS AND HAS A VARIABLE ORIGIN FROM THE BASILAR?
A
AICA
9
Q
WHAT IS RARELY ABSENT, MAY DUPLICATE/VARY FROM ORIGIN & IS THE ORIGIN OF BA?
A
SCA
