The optic disc or optic nerve head is the location where ganglion cell axons exit the eye to form the optic nerve. There are no light sensitive rods or cones to respond to a light stimulus at this point. This causes a break in the visual field called 'the blind spot' or the 'physiological blind spot'. The optic nerve head in a normal human eye carries from 1 to 1.2 million neurons from the eye towards the brain. [WP,unvetted].
optic vesicle +
ora serrata of retina
orbital part of frontal bone
organ component layer +
organ subunit +
oronasal membrane
osseus cochlea +
osseus cochlear canal
osseus labyrinth vestibule +
osseus semicircular canal
osseus spiral lamina
osteon +
otic and occipital +
otic capsule +
otic plate of pterygoid
otic vesicle protrusion +
otolith +
otolith organ +
otolithic part of statoconial membrane +
outer medulla of kidney +
outer medulla vasa recta ascending limb
outer medulla vasa recta descending limb
outer root sheath companion layer
Pacinian corpuscle
palpebral fissure
pancreatic lobule +
papilla of tongue +
papillary layer of dermis +
papillary muscle of heart +
parafoveal part of retina
parapineal organ
parasagittal crest
parasphenoid flange
parenchyma +
parenchyma of central nervous system +
parenchyma of mammary gland
parietal organ
pars amphibiorum
pars articularis of mandibular arch
pars basilaris
pars canalicularis of petrosal
pars convoluta of oviduct
pars cylindriformis ilei
pars externa plectri +
pars facialis of maxilla +
pars facialis of maxillopalatine
pars flaccida of tympanic membrane
pars glenoidalis of quadratojugal
pars inferior of labyrinth
pars intermedia of adenohypophysis
pars interna plectri
pars jugalis
pars media plectri +
pars plana of ciliary body
pars plicata of ciliary body
pars recta
pars reflexa of masseter
pars reuniens
pars suprascapularis
pars tensa of tympanic membrane
pars tuberalis of adenohypophysis
pectinate line
pectinate muscle
pectineal ligament
pectoral fin fold
pedicel
perichordal ring
perichordal tissue +
perifoveal part of retina
perilymphatic channel +
periocular mesenchyme
peripheral region of retina
periventricular zone of hypothalamus +
pillar of the semicircular canal +
pineal foramen
piriform aperture
pit organ
placodal ectoderm
planum terminale
planum triangulare
pleurapophysis
plica semilunaris of conjunctiva
podotheca
pole of lens +
pontine tegmentum +
postbranchial lamina
posterior cleithral process
posterior dentation of dorsal fin spine 2
posterior dentation of pectoral fin spine
posterior fascicle of palatopharyngeus
posterior lamina recurvata
posterior lateral line primordium +
posterior maxillary process +
posterior maxillary process dorsal process
posterior neural keel +
posterior neural rod +
posterior part of tongue +
posterior presumptive neural plate
posterior ramus of cleithrum
posterior segment of eyeball +
posterolingual region
postnasal wall
postorbital process
pre-Botzinger complex
pre-chordal neural plate +
presacral shield
presubiculum +
primary choana
primary nerve cord +
primary olfactory fiber layer
primary vitreous
primitive superior sagittal sinus +
processus confluens
processus lingularis of nasal skeleton
processus posterior of parasphenoid
proctodeum portion of cloaca
procurrent spur
prootic bone +
prostatic utricle
pterygopharyngeal part of superior pharyngeal constrictor
pterygoquadrate
pupillary membrane
Purkinje cell layer corpus cerebelli
Purkinje cell layer valvula cerebelli
quadrato-orbital commissure
ramules cutaneous
ramus anterior of CN VIII
ramus nasalis lateralis
ramus nasalis medialis
ramus of feather barb
ramus of feather barbule
ramus posterior of CN VIII
recessus basilaris
recessus coccygealis
recessus fenestrae ovalis
regional part of brain +
regional part of spinal cord +
Reissner's fiber +
remnant of Rathke's pouch
renal column
renal glomerulus +
renal papilla +
renal pelvis +
reticular layer of dermis
reticular membrane of spiral organ
retina +
retinal tapetum lucidum
retrochiasmatic area
rhamphotheca +
rhinarium
rhombomere boundary
ridge of tooth +
right colon
roof plate +
roof plate of diencephalon
roof plate of medulla oblongata
roof plate of metencephalon
roof plate of midbrain
roof plate of telencephalon
roof plate spinal cord region
root of nail
rugal fold +
saccule duct
saccus dorsalis
sacral condyle
sacral neural crest
sallet
scale primordium
Schweigger-Seidel sheath
sclera +
segmental subdivision of hindbrain +
semicircular canal +
semicircular canal ampulla +
semicircular duct +
sensory dissociation area
septal olfactory organ +
septum pellucidum +
septum semicircularium anterior
septum semicircularium laterale
septum semircularium posterior
sequestrum
seydels palatal process
sinus of Valsalva
skeletal muscle tissue of eye +
skeletal support for eminentia olfactoria +
skin appendage follicle +
skin crease +
skin gland +
skin of body +
smooth muscle of eye +
solum nasi
spatium sacculare
spicule
spina acromioidea
spinal cord +
spinal cord neural keel
spinal cord neural rod
spinal cord neural tube
spinous region of dorsal fin
spiral ligament
spiral modiolar artery
spiral organ of cochlea +
spiral prominence of cochlear duct
spleen pulp +
splenic cord
statoconial membrane +
strand of hair +
stratum basale of epidermis +
stratum compactum of dermis +
stratum corneum of epidermis +
stratum fibrosum et griseum superficiale
stratum granulosum of epidermis
stratum intermedium of epidermis
stratum intermedium of tooth
stratum lucidum of epidermis
stratum marginale
stratum opticum
stratum periventriculare
stratum spinosum of epidermis
stria vascularis of cochlear duct +
stroma +
stylar shelf +
stylus of pars media plectri
subcapsular sinus ceiling
subcapsular sinus floor
subcupular meshwork of statoconial membrane
subdivision of conjunctiva +
subdivision of spinal cord central canal +
subdivision of tube +
sublingual caruncle
submucosa of anal canal
suboccular arch
subolfactory process
subotic alae
substantia nigra pars compacta
substantia nigra pars reticulata
substratum of layer of retina +
sulcus articularis lateralis
sulcus articularis medialis
sulcus distalis ossis cruris
sulcus longitudinalis
sulcus pro musculo extensori cruris brevis
sulcus proximalis ossis cruris
supcapsular region of anterior region of lens
supcapsular region of posterior region of lens
superior branch of oculomotor nerve
superior parietal cortex
superior part of vestibular ganglion
supraorbital flange
supraorbital foramen +
suprarostral ala
supravaginal part of cervix
suspensory ligament of breast
suspensory ligament of lens
symphysis maxillaris
tail of pancreas +
tapetum lucidum of camera-type eye +
tectorial membrane of cochlea +
tectorial restraint system
tectum nasi
tela choroidea of fourth ventricle
tela choroidea of midbrain cerebral aqueduct
tela choroidea of telencephalic ventricle
tela choroidea of third ventricle
telencephalic part of interventricular foramen
telencephalon diencephalon boundary
tentorium cerebelli
tenuitas cristaeformis
terminal part of the cochlear canal
thoracolumbar junction +
thyroid follicle +
tip of renal papilla
tongue intermolar eminence
tooth crown +
tooth enamel organ +
tooth root +
torus pylorus
trabecula +
trabecular horn +
transverse folds of rectum
transverse pelvic ridge
triangular part of inferior frontal gyrus
trigone of urinary bladder +
trochlear groove of humerus
trunk neural crest +
trunk taste bud
tunica fibrosa of eyeball +
tympanosquamosal
type 1 odontode
ulnar condyle
unencapsulated tactile receptor
upper eyelid protuberances
urodeum +
urohyal lateral process
urohyal median process
urophysis
urostyle cotyle
urostyle ridge +
uterine horn +
utricle duct
utricle valve
utriculosaccular duct +
uvea +
vacuolated notochordal tissue
vagal neural crest +
vaginal hymen
vallecula of cerebellum
valve +
vasa recta ascending limb
vasa recta descending limb
vasculature of retina +
venous dural sinus +
venous system of brain
ventral limb of posttemporal
ventral part of optic cup +
ventral patch of Leydig's organ
ventral ramus of squamosal
ventricular system of brain +
ventricular system of central nervous system +
Verson's gland
vestibular aqueduct
vestibular fissure of the cochlear canal
vestibular labyrinth +
vestibular membrane of cochlear duct
vestibular nerve
vestibulocochlear nerve +
vitreous body +
vomerine canal
vomeronasal nerve
vomeronasal organ +
wall of anal canal
wall of central canal of spinal cord
wall of eyeball
wall of lacrimal duct
wall of membranous labyrinth
wall of ventricular system of brain +
webbing of bone in vertebral column
zona limitans intrathalamica
zone of basilar membrane of cochlea +
zone of organ +
zone of skin +
zygomatic process of frontal bone
Synonyms
Related Synonyms:
optic disk
;
optic nerve disc
;
optic nerve head
;
optic papilla
;
physiologic blind spot
;
physiologic blind spot of mariotte