Optic nerve
The optic nerve , also known as cranial nerve II or simply as CN II , is one of twelve cranial nerves but is also considered to be part of the central nervous system . It sends information from the retina (the outermost part of the eye ) to the brain . The brain forms a picture using the information so that you can see things.
The retina sees the image upside-down and the optic nerve sends it to the brain so it turns it back into normal. [1]
References
Terminal (CN 0) Olfactory (CN I)
Nuclei
anterior olfactory nucleus
Course
Optic (CN II)
Nuclei
lateral geniculate nucleus
Course
Oculomotor (CN III)
Nuclei
oculomotor nucleus
Edinger–Westphal nucleus
Branches
superior
parasympathetic root of ciliary ganglion
inferior
Trochlear (CN IV)Trigeminal (CN V)
Nuclei
PSN
spinal trigeminal nucleus
MN
TMN
Course
Branches
ophthalmic
maxillary
mandibular
Abducens (CN VI) Facial (CN VII)
Near origin
Intermediate nerve
Geniculate
Inside facial canal
Greater petrosal
Nerve to the stapedius
Chorda tympani
lingual nerve
submandibular ganglion
At stylomastoidforamen
Posterior auricular
Suprahyoid
Parotid plexus
temporal
zygomatic
buccal
mandibular
cervical
Nuclei
Facial motor nucleus
Solitary nucleus
Superior salivary nucleus
Vestibulocochlear (CN VIII)
Nuclei
vestibular nuclei
cochlear nuclei
Cochlear nerve
striae medullares
lateral lemniscus
Vestibular
Glossopharyngeal (CN IX)
Before jugular fossa After jugular fossa
Tympanic
tympanic plexus
lesser petrosal
otic ganglion
Stylopharyngeal branch
Pharyngeal branches
Tonsillar branches
Lingual branches
Carotid sinus
Nuclei
Nucleus ambiguus
Inferior salivatory nucleus
Solitary nucleus
Vagus (CN X)
Before jugular fossa After jugular fossa
Meningeal branch
Auricular branch
Neck
Pharyngeal branch
Superior laryngeal
Recurrent laryngeal
Superior cervical cardiac
Thorax
Inferior cardiac
Pulmonary
Vagal trunks
Abdomen
Celiac
Renal
Hepatic
Anterior gastric
Posterior gastric
Nuclei
Nucleus ambiguus
Dorsal nucleus of vagus nerve
Solitary nucleus
Accessory (CN XI)
Nuclei
nucleus ambiguus
spinal accessory nucleus
Cranial
Spinal
Hypoglossal (CN XII)
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