Anterior choroidal artery
Anterior choroidal artery | |
---|---|
Details | |
Source | internal carotid artery |
Identifiers | |
Latin | arteria choroidea anterior |
TA98 | A12.2.06.019 |
TA2 | 4501 |
FMA | 50087 |
Anatomical terminology |
The anterior choroidal artery is a
lateral ventricle and third ventricle
as well as numerous structures of the brain.
Occlusion of the artery can result in loss of sensation, loss of part of the visual field, and impaired movement, all on the opposite side of the body as the occlusion.
Structure
Origin
The anterior choroidal artery typically originates from the internal carotid artery. It may (rarely) instead arise from the middle cerebral artery.[1]
It originates from the distal internal carotid artery (ICA) 5 mm distal to the origin of the posterior communicating artery and just proximal to the terminal bifurcation of the ICA.[2]
Course
It passes inferior to the optic tract. It enters the lateral ventricle at the apex of its
Distribution
It serves structures in the prosencephalon, diencephalon, and mesencephalon:[2]
- lateral ventricle and third ventricle
- optic chiasm and optic tract
- internal capsule
- lateral geniculate body
- globus pallidus
- tail of the caudate nucleus
- hippocampus
- amygdala
- substantia nigra
- red nucleus
- crus cerebri
Clinical significance
Occlusion of the artery results in
hemiplegia (loss of the ability to move).[3] These symptoms are thought to arise from ischemic damage to the posterior limb of the internal capsule, thalamus, and optic chiasm/optic tract. However, the posterior limb of the internal capsule also receives lenticulostriate arteries from the middle cerebral artery, thus creating partially redundant supply.[4]
See also
References
- ISBN 978-0-683-40007-6.
- ^ ISBN 0-07-067497-3.)
{{cite book}}
: CS1 maint: multiple names: authors list (link - ^ ISBN 978-0-7295-3752-0.
- PMID 3729746.
External links
- MedEd at Loyola Neuro/neurovasc/navigation/achr.htm
- "Anatomy diagram: 13048.000-1". Roche Lexicon - illustrated navigator. Elsevier. Archived from the original on 2014-11-07.
- Blood supply at neuropat.dote.hu
- http://neuroangio.org/anatomy-and-variants/anterior-choroidal-artery/