Optic nerve

Nervus opticus

Begins at the optic disc where retinal ganglion cell axons converge. It exits the orbit through the optic canal and joins the opposite nerve at the optic chiasm, where nasal fibers cross. The optic tract continues to the lateral geniculate body and visual cortex.

Typ Nerve
Körpersystem Nervous
Körperregion Eye
Lateinischer Name Nervus opticus
FMA ID 50863

Funktion

The second cranial nerve (CN II) that transmits visual information from the retina to the brain. It carries approximately 1.2 million nerve fibers from retinal ganglion cells to the lateral geniculate nucleus and superior colliculus.

Klinische Bedeutung

Optic neuritis causes acute vision loss and is associated with multiple sclerosis. Papilledema (optic disc swelling) indicates raised intracranial pressure. Glaucoma causes progressive optic nerve damage. Pituitary tumors can compress the optic chiasm causing bitemporal hemianopia.

Häufig gestellte Fragen

What is the Optic nerve?
Begins at the optic disc where retinal ganglion cell axons converge. It exits the orbit through the optic canal and joins the opposite nerve at the optic chiasm, where nasal fibers cross. The optic tract continues to the lateral geniculate body and visual cortex.
What is the function of the Optic nerve?
The second cranial nerve (CN II) that transmits visual information from the retina to the brain. It carries approximately 1.2 million nerve fibers from retinal ganglion cells to the lateral geniculate nucleus and superior colliculus.
What body system is the Optic nerve part of?
The Optic nerve is part of the Nervous.
What conditions affect the Optic nerve?
Optic neuritis causes acute vision loss and is associated with multiple sclerosis. Papilledema (optic disc swelling) indicates raised intracranial pressure. Glaucoma causes progressive optic nerve damage. Pituitary tumors can compress the optic chiasm causing bitemporal hemianopia.
Where is the Optic nerve located?
The Optic nerve is located in the Eye region of the body.

Verwandte Strukturen

nervous system lemniscus lemniscus choroid plexus of fourth ventricle 4th ventricle choroid plexus arthropod optic lobe optic lobe genu of corpus callosum corpus callosum genu basis pontis basis pontis developing neuroepithelium embryonic neuroepithelium posterior recess posterior recess of diencephalic ventricle central nervous system cerebrospinal axis

Medizinischer Haftungsausschluss

Dieser Inhalt dient ausschließlich zu Bildungs- und Informationszwecken. Er ist nicht als Ersatz für professionellen medizinischen Rat, Diagnose oder Behandlung gedacht. Wenden Sie sich bei Fragen zu einem medizinischen Zustand stets an Ihren Arzt oder einen anderen qualifizierten Gesundheitsdienstleister. Ignorieren Sie niemals professionellen medizinischen Rat oder verzögern Sie dessen Einholung aufgrund von etwas, das Sie auf dieser Website gelesen haben.