In neuroanatomy, the optic chiasm, or optic chiasma ( /ɒptɪk kaɪæzəm/; from Greek χίασμα 'crossing', from Ancient Greek χιάζω 'to mark with an X'), is...

cross, such that the order of the functional map is reversed, e.g., the optic chiasms of various invertebrates such as insects and cephalopods. Type IV: A...

photoreceptors. The optic nerve leaves the orbit (eye socket) via the optic canal, running postero-medially towards the optic chiasm, where there is a partial...

long axon that extends into the brain. These axons form the optic nerve, optic chiasm, and optic tract. A small percentage of retinal ganglion cells contribute...

Compression of the optic chiasm is associated with pituitary adenoma, Craniopharyngioma, Meningioma etc. A lesion involving complete optic chiasm, which disrupts...

pulses using rods and cones. The optic nerve then carries these pulses through the optic canal. Upon reaching the optic chiasm the nerve fibers decussate (left...

Look up chiasm, chiasma, chiasmata, or chiasms in Wiktionary, the free dictionary. Chiasm may refer to: Chiasm (musical project), an electronic music project...

of the optic chiasm, manifesting as various impairments of the affected's visual field according to the location of the lesion along the optic nerve....

visual field. It is usually associated with lesions of the optic chiasm, the area where the optic nerves from the right and left eyes cross near the pituitary...

manifestations of neurofibromatosis 1. Optic gliomas are usually pilocytic tumors, and can involve the optic nerve or optic chiasm. Optic gliomas are usually associated...

apnea Thyroid nodules and thyroid cancer Hypogonadism Compression of the optic chiasm by the growth of pituitary adenoma leading to visual problems About 98%...

Newton–Müller–Gudden (NGM) saying: that the degree of optic fibre decussation in the optic chiasm is contrariwise related to the degree of frontal orientation...

is a continuation of the optic nerve that relays information from the optic chiasm to the ipsilateral lateral geniculate nucleus (LGN), pretectal nuclei...

Ramón y Cajal (1898). According to this theory, the function of the optic chiasm is to repair the retinal field image on the visual cortex. The pupil...

of the optic nerve by the tumor. The specific area of the visual pathway at which compression by these tumours occurs is at the optic chiasm. If originating...

that allow people to have continuous and peripheral vision (see Optic chiasm). Chiasm is produced in Detroit, MI United States. At the age of five, Emileigh...

position of the gastrointestinal tract, the liver, and the pancreas Optic chiasm Chiasm of the trochlear nerve Non-crossed olfactory tract Aurofacial asymmetry...

brain. The nucleus is situated at the base of the brain, adjacent to the optic chiasm. In humans, the SON contains about 3,000 neurons. The cell bodies produce...

tuberculum sellae. The opening of each optic canal is placed at either lateral end of the chiasmatic sulcus. The optic chiasm is situated superior and quite posterior...

small subarachnoid cistern related to the optic chiasm. The cistern is situated superior to the optic chiasm, and inferior to the rostrum of corpus callosum...

quadrantanopia leading to bitemporal hemianopsia, as the tumor may compress the optic chiasm. It has a point prevalence around two per 1,000,000. Craniopharyngiomas...

pellucidum with hypoplasia of the optic nerves and chiasm in 1956. The symptoms of SOD can be divided into those related to optic nerve underdevelopment, pituitary...

initial manifestation of the disease is inflammation of the optic nerve and/or optic chiasm (optic neuritis, ON). ON may lead to varying degrees of visual...

chiasma is reserved for crossing of- or within nerves such as in the optic chiasm. In botanical leaf taxology, the word decussate describes an opposite...

within the anatomy of the Retinal Ganglion Cells (RGC), optic nerve, optic chiasm, and optic tract. These disturbances are multifactorial, their aetiology...

region of the brain in the hypothalamus, situated directly above the optic chiasm. It is the principal circadian pacemaker in mammals, responsible for...

hypothalamus forming the floor of the third ventricle situated between the optic chiasm, and the mammillary bodies. The tuberal region is one of the three regions...

the cerebellum, near the brainstem, in the hypothalamic region, or the optic chiasm, but they may occur in any area where astrocytes are present, including...

pressing on the optic chiasm. The pituitary, seated in the sella turcica of the sphenoid bone, is directly inferior to the optic chiasm. The axons that...

mesencephalon: choroid plexus of the lateral ventricle and third ventricle optic chiasm and optic tract (genu, posterior limb, and retrolentiform part of) internal...