The innervation of the muscle of accommodation in the eye of the teleost, Holocentrus

✍ Scribed by Ralph G. Meader

• Publisher: John Wiley and Sons
• Year: 1936
• Tongue: English
• Weight: 539 KB
• Volume: 59
• Category: Article
• ISSN: 0362-2525
• DOI: 10.1002/jmor.1050590108

✦ Synopsis

Abstract

Serial sections and dissections of the eye and orbit of Holocentrus ascensionis (Osbeck) reveal a relatively well‐developed accommodation muscle (m. retractor lentis or campanula Halleri) supplied by a ramus of the short ciliary nerve which traverses the region of the vitreous humor in an invaginated fold of choroid, the processus falciformis. The ramus contains chiefly heavily myelinated nerve fibers with a few finely myelinated or unmyelinated fibers. The type, origin and probable function of these constituents follows:

Medullated postganglionic processes of ciliary ganglion cells about which end the preganglionic fibers of the oculomotor nerve.

Medullated postganglionic fibers from the trigeminal sympathetic ganglion which traverse the ciliary ganglion to join the nerve. These and (4) may supply accompanying blood vessels.

Medullated sensory fibers to the profundus ganglion.

Unmedullated or finely medullated fibers from the trigeminal sympathetic ganglion.