Choroidal arteries: Difference between revisions
Jump to navigation
Jump to search
| Line 1: | Line 1: | ||
[[File:Embryology and Variations of the Posterior Choroidal Artery.jpg|alt=Embryology and Variations of the Posterior Choroidal Artery|thumb|Embryology and Variations of the Posterior Choroidal Artery]] | |||
= Anterior Choroidal arteries = | = Anterior Choroidal arteries = | ||
* Arise from the [[ICA]] | * Arise from the [[ICA]] | ||
| Line 14: | Line 15: | ||
* Usually arise from the proximal P2 of the [[PCA]] | * Usually arise from the proximal P2 of the [[PCA]] | ||
* הולך אחורה בציסטרנה אמביאנס | * הולך אחורה בציסטרנה אמביאנס | ||
* בהמשך מסתובב קדימה לתוך גג החדר השלישי | * בהמשך מסתובב קדימה לתוך גג החדר השלישי | ||
== Lateral Posterior Choroidal Artery == | == Lateral Posterior Choroidal Artery == | ||
* Lateral branches enter the choroidal fissure and anastomose with the anterior choroidal arteries forming variable anastomotic network | * Lateral branches enter the choroidal fissure and anastomose with the anterior choroidal arteries forming variable anastomotic network | ||
[[Category:Neuroanatomy]] | [[Category:Neuroanatomy]] | ||
[[Category:Vascular anatomy]] | [[Category:Vascular anatomy]] | ||
Revision as of 15:20, 3 March 2024
Anterior Choroidal arteries
- Arise from the ICA
- Course: goes through the choroidal fissure → temporal horn of LV Vascular territory:
- Choroid of the LVs (especially in the lateral horn) Hippocampus, amygdala, uncus
- Globus pallidus, caudate tail, putamen Thalamus (VL)
- IC (posterior limb and retrolenticular)
- Optic tract, lateral geniculate nucleus, optic radiation
- Historically, this artery was sacrificed to treat Parkinson’s disease: decreased tremor likely due to decreased blood supply to VL thalamus.
Posterior Choroidal arteries (medial and lateral)
Medial Posterior Choroidal Artery
- Medial branches supply pineal gland, tectum, thalamus, choroid of the third ventricle
- Usually arise from the proximal P2 of the PCA
- הולך אחורה בציסטרנה אמביאנס
- בהמשך מסתובב קדימה לתוך גג החדר השלישי
Lateral Posterior Choroidal Artery
- Lateral branches enter the choroidal fissure and anastomose with the anterior choroidal arteries forming variable anastomotic network