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central retinal artery (Zinn artery)
Origin: ophthalmic artery
Branches:
1) superior temporal branch
2) inferior temporal branch
3) nasal branches
Anastomosis: NONE
Course:
-> penetrates the optic nerve (CN II) 1 cm behind eye (extraocular part) to enter the eyeball (intraocular part) at the optic papilla in the retina
Pathology:
1) this is an end artery; there are NO anastomoses
2) occlusion results in total unilateral blindness
Related
optic nerve (CN II, ON)
retinal artery occlusion
General
blood vessel
Properties
FORM: central retinal artery (Zinn artery)
ORIGIN: OPTHALMIC-ARTERY
References
- Grant's Atlas of Anatomy, 10th edition, AMR Agur & MJ Lee (eds),
Lippincott Williams & Wilkins, Philadelphia, 1999
- Stedman's Medical Dictionary 27th ed, Williams &
Wilkins, Baltimore, 1999
Components
intima; tunica intima
tunica media
vascular endothelium