external sheath of optic nerve
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Optic nerve glioma — Classification and external resources Magnetic resonance image of a large retrobulbar optic nerve tumor causing massive proptosis. ICD 10 C … Wikipedia
sheath — 1. Any enveloping structure, such as the membranous covering of a muscle, nerve, or blood vessel. Any sheathlike structure. SYN: vagina (1). 2. The prepuce of male animals, especially of the horse. 3. A specially designed tu … Medical dictionary
Optic neuritis — Classification and external resources ICD 10 H46, G44.848 ICD 9 377.30 … Wikipedia
Optic neuropathy — Classification and external resources ICD 10 H46 The optic nerve contains axons of nerve cells that emerge from the retina, leave the eye at the optic disc, and go to the visual cortex where input from the eye is processed into vision. There are… … Wikipedia
Optic disc — Interior of posterior half of bulb of left eye. The veins are darker in appearance than the arteries … Wikipedia
Nerve fiber layer — Section of retina. (Stratum opticum labeled at right, second from the top.) … Wikipedia
External limiting membrane — Latin membrana limitans externa Gray s subject #225 1017 The external limiting membrane (or outer limiting membrane) is one of the ten distinct layers of the retina of the eye. It has a network like structure and i … Wikipedia
Nerve — A bundle of fibers that uses electrical and chemical signals to transmit sensory and motor information from one body part to another. See nervous system. * * * A whitish cordlike structure composed of one or more bundles (fascicles) of myelinated … Medical dictionary
Vagus nerve — Nerve: Vagus nerve Plan of upper portions of glossopharyngeal, vagus, and accessory nerves. Course … Wikipedia
Oculomotor nerve — Nerve: Oculomotor nerve Nerves of the orbit. Seen from above … Wikipedia
