| D009900 |
Optic Nerve |
The 2nd cranial nerve which conveys visual information from the RETINA to the brain. The nerve carries the axons of the RETINAL GANGLION CELLS which sort at the OPTIC CHIASM and continue via the OPTIC TRACTS to the brain. The largest projection is to the lateral geniculate nuclei; other targets include the SUPERIOR COLLICULI and the SUPRACHIASMATIC NUCLEI. Though known as the second cranial nerve, it is considered part of the CENTRAL NERVOUS SYSTEM. |
Cranial Nerve II,Second Cranial Nerve,Nervus Opticus,Cranial Nerve, Second,Cranial Nerves, Second,Nerve, Optic,Nerve, Second Cranial,Nerves, Optic,Nerves, Second Cranial,Optic Nerves,Second Cranial Nerves |
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| D009901 |
Optic Nerve Diseases |
Conditions which produce injury or dysfunction of the second cranial or optic nerve, which is generally considered a component of the central nervous system. Damage to optic nerve fibers may occur at or near their origin in the retina, at the optic disk, or in the nerve, optic chiasm, optic tract, or lateral geniculate nuclei. Clinical manifestations may include decreased visual acuity and contrast sensitivity, impaired color vision, and an afferent pupillary defect. |
Cranial Nerve II Diseases,Foster-Kennedy Syndrome,Optic Disc Disorders,Optic Disk Disorders,Optic Neuropathy,Second Cranial Nerve Diseases,Cranial Nerve II Disorder,Neural-Optical Lesion,Disc Disorder, Optic,Disk Disorder, Optic,Disorder, Optic Disc,Foster Kennedy Syndrome,Lesion, Neural-Optical,Neural Optical Lesion,Neural-Optical Lesions,Neuropathy, Optic,Optic Disc Disorder,Optic Disk Disorder,Optic Nerve Disease,Optic Neuropathies,Syndrome, Foster-Kennedy |
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| D004194 |
Disease |
A definite pathologic process with a characteristic set of signs and symptoms. It may affect the whole body or any of its parts, and its etiology, pathology, and prognosis may be known or unknown. |
Diseases |
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| D006801 |
Humans |
Members of the species Homo sapiens. |
Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man |
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| D014795 |
Visual Pathways |
Set of cell bodies and nerve fibers conducting impulses from the eyes to the cerebral cortex. It includes the RETINA; OPTIC NERVE; optic tract; and geniculocalcarine tract. |
Pathway, Visual,Pathways, Visual,Visual Pathway |
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| D065866 |
Optic Tract |
Nerve fiber originating from the OPTIC CHIASM that connects predominantly to the LATERAL GENICULATE BODIES. It is the continuation of the VISUAL PATHWAY that conveys the visual information originally from the RETINA to the optic chiasm via the OPTIC NERVES. |
Tractus Optici,Tractus Opticus,Optic Tracts,Optici, Tractus,Opticus, Tractus,Tract, Optic,Tracts, Optic |
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