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.
Cri du chat syndrome occurs when a piece of chromosomal material is missing from a particular region on chromosome 5. The disorder is also called cat cry syndrome or chromosome deletion 5p syndrome.ri du chat syndrome is also called 5p deletion syndrome because it is caused by a deletion, or removal, of genetic material from chromosome 5. The deletion that causes cri du chat syndrome occurs on the short or p arm of chromosome 5.