The infraorbital vessels are found in the inferior orbital fissure, and travel down the infraorbital groove into the infraorbital canal and exit through the infraorbital foramen.Inferior division of ophthalmic vein passes through the inferior orbital fissure. It is formed by the sphenoid bone and maxilla.he infraorbital vessels are found in the inferior orbital fissure, and travel down the infraorbital groove into the infraorbital canal and exit through the infraorbital foramen.
4q33 Deletion a rare disorder caused by a partial deletion of chromosome 4 at the 33 rd band.q33 Deletion a rare disorder caused by a partial deletion of chromosome 4 at the 33 rd band.
1 Duplications: A portion of the chromosome is duplicated, resulting in extra genetic material. 2  Known disorders include Charcot-Marie-Tooth disease type 1A which may be caused by duplication of the gene encoding peripheral myelin protein 22 (PMP22) on chromosome 17. Deletions: A portion of the chromosome is missing or deleted. 2  Known disorders include Wolf-Hirschhorn syndrome, which is caused by partial deletion of the short arm of chromosome 4; and Jacobsen syndrome, also called the terminal 11q deletion disorder.