Choroidal arteries: Difference between revisions

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= Posterior Choroidal arteries (medial and lateral) =  
= Posterior Choroidal arteries (medial and lateral) =  
* Arise from the [[PCA]]
== Medial Posterior Choroidal Artery ==
[[File:Medial Posterior Choroidal Artery.png|thumb]]
* Medial branches supply pineal gland, tectum, thalamus, choroid of the third ventricle
* 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 <br clear="all>
== 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 15:13, 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