• Thumbnail for Optic chiasm
    In neuroanatomy, the optic chiasm, or optic chiasma ( /ɒptɪk kaɪæzəm/; from Greek χίασμα 'crossing', from Ancient Greek χιάζω 'to mark with an X'), is...
    15 KB (1,712 words) - 17:03, 3 July 2024
  • Thumbnail for Optic nerve
    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...
    15 KB (1,891 words) - 23:59, 30 June 2024
  • Thumbnail for Chiasm (anatomy)
    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...
    12 KB (1,394 words) - 13:13, 26 April 2024
  • Thumbnail for Retinal ganglion cell
    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...
    29 KB (3,521 words) - 03:39, 17 June 2024
  • Thumbnail for Visual pathway lesions
    Compression of the optic chiasm is associated with pituitary adenoma, Craniopharyngioma, Meningioma etc. A lesion involving complete optic chiasm, which disrupts...
    24 KB (2,489 words) - 23:13, 12 July 2024
  • Thumbnail for Visual system
    Visual system (redirect from Optic pathway)
    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...
    58 KB (6,877 words) - 20:38, 13 May 2024
  • Look up chiasm, chiasma, chiasmata, or chiasms in Wiktionary, the free dictionary. Chiasm may refer to: Chiasm (musical project), an electronic music project...
    1 KB (229 words) - 23:29, 8 April 2022
  • Thumbnail for Bitemporal hemianopsia
    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...
    4 KB (363 words) - 10:34, 9 March 2024
  • Thumbnail for Acromegaly
    apnea Thyroid nodules and thyroid cancer Hypogonadism Compression of the optic chiasm by the growth of pituitary adenoma leading to visual problems About 98%...
    44 KB (4,497 words) - 00:26, 23 July 2024
  • Thumbnail for Optic nerve glioma
    manifestations of neurofibromatosis 1. Optic gliomas are usually pilocytic tumors, and can involve the optic nerve or optic chiasm. Optic gliomas are usually associated...
    6 KB (688 words) - 08:16, 28 December 2022
  • Thumbnail for Chiasmal syndrome
    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....
    11 KB (1,491 words) - 21:23, 6 May 2023
  • Thumbnail for Optic tract
    is a continuation of the optic nerve that relays information from the optic chiasm to the ipsilateral lateral geniculate nucleus (LGN), pretectal nuclei...
    8 KB (900 words) - 17:06, 3 July 2024
  • 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...
    5 KB (545 words) - 02:45, 26 March 2024
  • Thumbnail for Contralateral brain
    show chiasmas: (1) the chiasm of the optic tract (i.e., cranial nerve II), which originates from the eyes and inserts on the optic tectum of the midbrain;...
    23 KB (2,605 words) - 23:12, 18 May 2024
  • Thumbnail for Depth perception
    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...
    39 KB (5,089 words) - 14:49, 11 May 2024
  • Thumbnail for Supraoptic nucleus
    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...
    13 KB (1,616 words) - 21:37, 28 February 2024
  • Thumbnail for Pituitary adenoma
    condition called bitemporal hemianopsia. If originating superior to the optic chiasm, more commonly in a craniopharyngioma of the pituitary stalk, the visual...
    55 KB (5,766 words) - 17:30, 22 June 2024
  • Thumbnail for Chiasmatic groove
    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...
    2 KB (159 words) - 16:09, 18 February 2024
  • including humans, have eyes that are directed forward. Primates also have an optic chiasm (OC), with 45 percent made up of uncrossed nerves.[citation needed] The...
    19 KB (2,569 words) - 17:04, 5 April 2024
  • 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...
    2 KB (204 words) - 01:03, 22 September 2023
  • 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...
    68 KB (7,255 words) - 03:07, 5 February 2024
  • Thumbnail for Decussation
    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...
    6 KB (635 words) - 18:13, 23 January 2024
  • within the anatomy of the Retinal Ganglion Cells (RGC), optic nerve, optic chiasm, and optic tract. These disturbances are multifactorial, their aetiology...
    31 KB (3,717 words) - 10:04, 5 April 2024
  • Thumbnail for Septo-optic dysplasia
    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...
    11 KB (1,077 words) - 07:23, 15 April 2024
  • Thumbnail for Axial twist theory
    position of the gastrointestinal tract, the liver, and the pancreas Optic chiasm chiasm of the trochlear nerve Non-crossed olfactory tract Aurofacial asymmetry...
    37 KB (4,127 words) - 10:57, 5 July 2024
  • Thumbnail for Suprachiasmatic nucleus
    region of the brain in the hypothalamus, situated directly above the optic chiasm. It is the principal circadian pacemaker in mammals, responsible for...
    39 KB (4,432 words) - 07:12, 13 February 2024
  • Thumbnail for The Creation of Adam
    stem, the frontal lobe, the basilar artery, the pituitary gland and the optic chiasm. Alternatively, it has been observed that the red cloth around God has...
    32 KB (3,176 words) - 23:52, 26 June 2024
  • Thumbnail for Tuber cinereum
    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...
    5 KB (507 words) - 23:41, 14 June 2024
  • Thumbnail for Retinohypothalamic tract
    monosynaptically, to the suprachiasmatic nuclei (SCN) via the optic nerve and the optic chiasm. The suprachiasmatic nuclei receive and interpret information...
    7 KB (876 words) - 14:29, 1 September 2023
  • Thumbnail for Cranial nerve examination
    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...
    15 KB (2,054 words) - 10:09, 29 December 2023