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.

Тип Nerve
Система органов Nervous
Область тела Eye
Латинское название Nervus opticus
FMA ID 50863

Функция

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.

Клиническое значение

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.

Часто задаваемые вопросы

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.

Связанные структуры

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

Медицинский отказ от ответственности

Данный контент предназначен исключительно для образовательных и информационных целей. Он не предназначен для замены профессиональных медицинских консультаций, диагностики или лечения. Всегда обращайтесь за советом к своему врачу или другому квалифицированному медицинскому работнику по любым вопросам, связанным с состоянием вашего здоровья. Никогда не игнорируйте профессиональные медицинские советы и не откладывайте их получение из-за того, что вы прочитали на этом сайте.