Trigeminal innervation of the scleral spur in cynomolgus monkeys. 1994

G L Ruskell
Department of Optometry and Visual Science, City University, London, UK.

Degeneration induced by intracranial section of the ophthalmic branch of the trigeminal nerve was used as a marker to trace the ocular passage and termination of fibres in ocular filtration angle structures of 3 cynomolgus monkeys. Fine supraciliary nerves branched from precorneal nerves as they entered the sclera from the uvea, passed forwards radially in the lamina fusca, entered the scleral spur, turned circumferentially and terminated. Many of the fibres were degenerated. Other less numerous branches advanced in the ciliary muscle close to the lamina fusca and were distributed either to the spur or to the trabecular meshwork. Spur fibres were approximately 4 times as numerous as trabecular fibres. The position, arrangement and ophthalmic identity of most of the spur terminals suggest a capacity to record tension produced by ciliary muscle contraction.

UI MeSH Term Description Entries
D008252 Macaca fascicularis A species of the genus MACACA which typically lives near the coast in tidal creeks and mangrove swamps primarily on the islands of the Malay peninsula. Burmese Long-Tailed Macaque,Crab-Eating Monkey,Cynomolgus Monkey,M. f. aurea,M. fascicularis,Macaca fascicularis aurea,Monkey, Crab-Eating,Monkey, Cynomolgus,Crab-Eating Macaque,Burmese Long Tailed Macaque,Crab Eating Macaque,Crab Eating Monkey,Crab-Eating Macaques,Crab-Eating Monkeys,Cynomolgus Monkeys,Long-Tailed Macaque, Burmese,Macaque, Burmese Long-Tailed,Macaque, Crab-Eating,Monkey, Crab Eating
D008297 Male Males
D009410 Nerve Degeneration Loss of functional activity and trophic degeneration of nerve axons and their terminal arborizations following the destruction of their cells of origin or interruption of their continuity with these cells. The pathology is characteristic of neurodegenerative diseases. Often the process of nerve degeneration is studied in research on neuroanatomical localization and correlation of the neurophysiology of neural pathways. Neuron Degeneration,Degeneration, Nerve,Degeneration, Neuron,Degenerations, Nerve,Degenerations, Neuron,Nerve Degenerations,Neuron Degenerations
D009802 Oculomotor Nerve The 3d cranial nerve. The oculomotor nerve sends motor fibers to the levator muscles of the eyelid and to the superior rectus, inferior rectus, and inferior oblique muscles of the eye. It also sends parasympathetic efferents (via the ciliary ganglion) to the muscles controlling pupillary constriction and accommodation. The motor fibers originate in the oculomotor nuclei of the midbrain. Cranial Nerve III,Third Cranial Nerve,Nerve III,Nervus Oculomotorius,Cranial Nerve IIIs,Cranial Nerve, Third,Cranial Nerves, Third,Nerve IIIs,Nerve, Oculomotor,Nerve, Third Cranial,Nerves, Oculomotor,Nerves, Third Cranial,Oculomotor Nerves,Oculomotorius, Nervus,Third Cranial Nerves
D009915 Orbit Bony cavity that holds the eyeball and its associated tissues and appendages. Eye Socket,Eye Sockets,Orbits,Socket, Eye,Sockets, Eye
D005260 Female Females
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D014276 Trigeminal Nerve The 5th and largest cranial nerve. The trigeminal nerve is a mixed motor and sensory nerve. The larger sensory part forms the ophthalmic, mandibular, and maxillary nerves which carry afferents sensitive to external or internal stimuli from the skin, muscles, and joints of the face and mouth and from the teeth. Most of these fibers originate from cells of the TRIGEMINAL GANGLION and project to the TRIGEMINAL NUCLEUS of the brain stem. The smaller motor part arises from the brain stem trigeminal motor nucleus and innervates the muscles of mastication. Cranial Nerve V,Fifth Cranial Nerve,Nerve V,Nervus Trigeminus,Cranial Nerve, Fifth,Fifth Cranial Nerves,Nerve V, Cranial,Nerve Vs,Nerve, Fifth Cranial,Nerve, Trigeminal,Trigeminal Nerves,Trigeminus, Nervus

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