Major arterial circle of iris
Circulus arteriosus major iridis
- Synonym: Major circulus arteriosus of iris
- Related terms: Major circulus arteriosus of iris
Definition
Each of the two long ciliary arteries, having reached the attached margin of the iris, divides into an upper and lower branch; these anastomose with corresponding branches from the opposite side and thus encircle the iris; into this vascular circle (Major circulus arteriosus of iris) the anterior ciliary arteries pour their blood, and from it vessels converge to the free margin of the iris, and there communicate and form a second circle (Minor circulus arteriosus of iris).
References
This definition incorporates text from a public domain edition of Gray's Anatomy (20th U.S. edition of Gray's Anatomy of the Human Body, published in 1918 – from http://www.bartleby.com/107/).
