Send us a Message
Submit Data |  Help |  Video Tutorials |  News |  Publications |  Download |  REST API |  Citing RGD |  Contact   
Search RGD Grant Resources Citing RGD About Us Contact Us
Genes Variants Community Projects QTLs Strains Markers Genome Information Ontologies Cell Lines References Download Submit Data
OntoMate (Literature Search) JBrowse (Genome Browser) Synteny Browser (VCMap) Variant Visualizer Multi-Ontology Enrichment (MOET) Gene-Ortholog Location Finder (GOLF) InterViewer (Protein-Protein Interactions) PhenoMiner (Quatitative Phenotypes) Gene Annotator OLGA (Gene List Generator) AllianceMine GViewer (Genome Viewer)
Aging & Age-Related Disease Cancer & Neoplastic Disease Cardiovascular Disease Coronavirus Disease Developmental Disease Diabetes Hematologic Disease Immune & Inflammatory Disease Infectious Disease Liver Disease Neurological Disease Obesity & Metabolic Syndrome Renal Disease Respiratory Disease Sensory Organ Disease
Find Models Genetic Models Autism Models Rat PhenoMiner (Quantitative Phenotypes) Chinchilla PhenoMiner Expected Ranges (Quantitative Phenotype) PhenoMiner Term Comparison Hybrid Rat Diversity Panel Phenotypes Phenotypes in Other Animal Models Animal Husbandry Strain Medical Records Phylogenetics Strain Availability Calendar Rats 101 Submissions Photo Archive
Pathways
Rat Community Forum Directory of Rat Laboratories Video Tutorials News RGD Publications RGD Presentations Archive Nomenclature Guidelines Resource Links Laboratory Resources Employment Resources
Advanced Search (OLGA)

Ontology Browser
Term:
Parent Terms Term With Siblings Child Terms
abducens nerve 
acinus of lacrimal gland 
acinus of lactiferous gland +  
acinus of olfactory gland 
acinus of sebaceous gland +  
actinotrichium +  
adenohypophysis +  
afterfeather 
aggregate regional part of brain +  
ala of nose 
alar plate midbrain 
alimentary part of gastrointestinal system +  
ampullary nerve 
ampullary organ 
anal canal +  
anal column 
anterior dentation of pectoral fin spine 
anterior distal serration of pectoral fin spine 
anterior ectodermal midgut 
anterior lamina recurvata 
anterior maxillary process 
anterior nasal wall 
anterior neural keel +  
anterior neural rod +  
anterior presumptive neural plate 
anterior ramus of cleithrum 
anterior segment of eyeball +  
anterior uvea +  
anterolateral process of frontoparietal 
anteroventral process of cleithrum 
anus 
apex of cochlea 
aqueous drainage system +  
aqueous vein 
areola +  
areolar tubercle 
arrector pili muscle of vibrissa 
arthropod optic lobe 
ascending process of the parasphenoid 
base of cochlear canal 
basilar membrane of cochlea +  
basilar papilla 
basipterygoid process of parasphenoid 
basis modioli 
basivertebral vein 
blood-cerebrospinal fluid barrier 
blood-inner ear barrier 
bony labyrinth +  
border between sublaminar layers +  
brain +  
brain blood vessel +  
brain endothelium 
brain gray matter +  
brain marginal zone +  
brain meninx +  
brain ventricle/choroid plexus +  
brain white matter +  
bulb of hair follicle +  
calcareous tooth +  
calcified structure of brain +  
camera-type eye +  
canal of Schlemm 
canthus +  
capsular process 
capsule of lens 
cardiac neural crest +  
cardiovascular system +  
cartilage of external acoustic meatus 
cartilaginous external acoustic tube 
caudal mesencephalo-cerebellar tract 
central canal of spinal cord +  
central figure of scute 
central nervous system +  
central nervous system cell part cluster +  
central retina 
cephalopod optic lobe 
cerebellar crest 
cerebellum ventricular layer 
cerebral hemisphere +  
cerebral subcortex +  
chamber of eyeball +  
chitin-based cuticle +  
chorioretinal region +  
choroid plexus stroma +  
ciliary body +  
ciliary marginal zone 
ciliary processes 
ciliary stroma 
circuit part of central nervous system +  
circulatory system +  
cleithrum head 
climbing fiber 
cochlea +  
cochlear basement membrane 
cochlear canal +  
cochlear duct of membranous labyrinth +  
cochlear labyrinth +  
cochlear modiolus +  
cochlear nerve 
collagenous dermal stroma 
columella nasi 
common crus of semicircular duct 
composite part spanning multiple base regional parts of brain +  
conjunctiva +  
conjunctival papilla 
conjunctival sac +  
corneo-scleral junction 
corpora quadrigemina +  
cortex of hair 
courtship gland 
cranial neural crest +  
crista ampullaris +  
crista intermedia 
crista subnasalis 
crista supraorbitalis 
crus commune +  
ctenius 
cultriform process 
cusp of tooth +  
cutaneous elastic tissue +  
cutaneous microfibril 
cuticle of hair 
dartos muscle of labia majora 
dentate gyrus subgranular zone 
dermal condensation of feather follicle +  
dermal papilla +  
dermal pulp of feather shaft 
dermal scale focus 
dermal skeletal element +  
dermal superficial region 
dermatological-muscosal system 
dermis +  
dermis of feather follicle 
diaphragma sellae 
diencephalic part of interventricular foramen 
digestive system +  
distal limb integumentary appendage +  
dorsal iris 
dorsal part of optic cup 
dorsal zone of medial entorhinal cortex 
dorso-rostral cluster 
dorsolateral septum 
dorsum of nose 
duct of apocrine sweat gland 
duct of eccrine sweat gland 
duct of olfactory gland 
duct of sebaceous gland +  
ductus reuniens +  
dura mater lymph vessel 
ecto-epithelium +  
ectodermal part of digestive tract +  
Eimer's organ 
elastica externa of notochord 
enamel knot 
endolymphatic duct +  
endolymphatic system 
entire sense organ system +  
entorhinal cortex +  
epibranchial ganglion +  
epidermal egg tooth 
epidermal intermediate stratum 
epidermal placode 
epidermal ridge of digit 
epidermal scale +  
epidermal superficial stratum 
epidermal-dermal junction +  
epidermis of feather follicle +  
epidermis suprabasal layer 
epioccipital bridge 
epioccipital posterior process 
epiotic +  
epiphysial cluster 
excretory system +  
exocrine system +  
external acoustic meatus +  
external acoustic meatus osseus part 
external cellular layer 
external naris +  
external nose +  
extremitas anterior 
eye muscle +  
eye trabecular meshwork +  
eyeball of camera-type eye +  
eyelid +  
eyelid blood vessel 
eyelid gland +  
falx cerebelli 
falx cerebri 
fasciculus of brain +  
fasciola cinerea 
fasciolar gyrus 
feather +  
feather barb +  
feather barbicel 
feather barbule +  
feather bud, dermal component +  
feather calamus 
feather shaft +  
feather vane 
filum terminale +  
filum terminale externum 
filum terminale internum 
fin fold pectoral fin bud +  
fin hook +  
flexural organ 
floor plate +  
floor plate of neural tube +  
foramen cecum of frontal bone 
forebrain midbrain boundary neural keel +  
forebrain midbrain boundary neural plate +  
forebrain midbrain boundary neural rod +  
forebrain midbrain boundary neural tube 
forebrain neural keel +  
forebrain neural rod +  
forebrain neural tube 
forebrain ventricular layer 
forebrain-midbrain boundary 
foregut duodenum mesentery 
fourth ventricle aperture +  
fovea centralis +  
foveola of retina 
frontal nerve (branch of ophthalmic) 
future brain vesicle +  
future hindbrain meninx +  
ganglion of central nervous system +  
gelatinous layer of statoconial membrane 
genitourinary system +  
gigantocellular part of magnocellular preoptic nucleus 
gland of anal canal 
gland of diencephalon +  
gland of nasal mucosa +  
glymphatic system 
granular layer corpus cerebelli 
granular layer valvula cerebelli 
gustatory system +  
gyrus +  
hair canal 
hair matrix 
hair medulla 
hair root 
hair root sheath +  
hair root sheath matrix 
hair shaft +  
Harderian gland +  
Harderian gland duct 
head taste bud 
helicotrema 
hematopoietic system +  
hemolymphoid system +  
Henle's fiber layer 
Hensen stripe 
hindbrain neural keel +  
hindbrain neural rod +  
hindbrain neural tube 
hindbrain venous system 
hindbrain-spinal cord boundary 
hoof lamina 
hyoid articular area 
hypocleideum 
hypothalamus-pituitary axis 
immature otolith +  
inferior branch of oculomotor nerve 
inferior horn of the lateral ventricle 
inferior parietal cortex 
inferior rectal artery 
infundibular organ 
infundibulum of hair follicle 
inner ear foramen +  
insect abdominal histoblast anlage +  
insect adult brain +  
insect analia +  
insect antennal disc +  
insect anterior ectoderm derivative +  
insect arista +  
insect Bolwig organ 
insect clypeo-labral disc +  
insect clypeus 
insect cuticular specialization +  
insect dorsal ectoderm derivative +  
insect dorsal mesothorax +  
insect dorsal thoracic disc +  
insect embryonic brain +  
insect embryonic/larval brain +  
insect eye-antennal disc +  
insect genital disc +  
insect labial disc +  
insect mesothoracic tergum 
insect presumptive arista +  
insect presumptive prothoracic metatarsus +  
insect proboscis 
insect prothoracic leg +  
insect prothoracic tarsal segment +  
insect protocerebrum +  
insect stomatogastric nervous system 
insect supraesophageal ganglion +  
insect ventral ectoderm derivative +  
insect ventral thoracic disc +  
integumental system +  
internal acoustic meatus 
internal cellular layer 
internal ear +  
internal surface of frontal bone 
interventricular foramen of CNS +  
intervertebral vein 
iris +  
iris stroma 
isthmus of cingulate gyrus 
Kimura membrane 
labyrinthine artery 
lacrimal apparatus +  
lacrimal canaliculus +  
lacrimal drainage system +  
lacrimal gland +  
lacrimal lake 
lacrimal nerve 
lacrimal papilla 
lacrimal punctum 
lacrimal sac +  
lamina inferior 
lamina nariochoanalis 
lamina of spiral limbus 
lamina precerebralis 
lamina superior 
lateral eminence of fourth ventricle 
lateral eminence of hypophysis 
lateral entorhinal cortex 
lateral floor plate 
lateral line +  
lateral line ganglion +  
lateral line nerve +  
lateral ventricle subependymal layer 
lateral wall neural rod 
lateral zone of hypothalamus +  
layer of dura mater +  
layer of hippocampal field +  
layer of retina +  
lens cortex 
lens fiber 
lens nucleus 
lens of camera-type eye +  
lens vesicle +  
lepidotrichial segment +  
limbic system +  
limiting layer of elasmoid scale 
lobar bronchus alveolar system 
lobe of cerebral hemisphere +  
lobule of mammary gland +  
long ciliary nerve 
lunule of nail 
lymphoid system +  
macula +  
macula lutea +  
macula lutea proper 
mammary gland +  
mammary gland alveolus 
mammary gland connective tissue +  
mammary gland luminal epithelium 
mammary gland smooth muscle 
mammary lobe 
mammillary body +  
mandibular arch neural crest 
margin of eyelid 
margo anterior of cleithrum 
margo posterior of cleithrum 
margo scapularis 
margo vertebralis 
medial entorhinal cortex +  
medial floor plate 
medial zone of hypothalamus +  
median pars intermedia 
median prenasal process 
medulla oblongata +  
membranous labyrinth +  
meninx +  
mesenchyme of mammary gland +  
mesenchyme of nasal septum 
midbrain hindbrain boundary neural keel +  
midbrain hindbrain boundary neural rod +  
midbrain hindbrain boundary neural tube 
midbrain neural keel +  
midbrain neural rod 
midbrain neural tube +  
midbrain-hindbrain boundary +  
midgut duodenum mesentery +  
mixed ectoderm/mesoderm/endoderm-derived structure 
mole 
molecular layer corpus cerebelli +  
molecular layer valvula cerebelli +  
molecular system +  
mossy fiber 
mucosa of anal canal 
mucosa of lacrimal canaliculus 
mucosa of nasal septum 
mucosa of nasolacrimal duct +  
muscle layer of anal canal 
musculoskeletal system +  
mushroom body 
nail matrix 
nail plate 
nasal bridge 
nasal cartilage +  
nasal cavity mucosa +  
nasal muscle +  
nasal septum +  
nasal skeleton +  
nasal tentacle 
nasociliary nerve 
nasolabial region 
nasolacrimal duct +  
neck of tooth 
nervous system +  
neural crest +  
neural crest-derived structure +  
neural tube basal plate +  
neural tube derived brain 
neural tube lateral wall +  
neural tube marginal layer +  
neuraxis flexure +  
neurectoderm +  
neuroendocrine system +  
neurogenic field +  
neuromast +  
neuromere +  
neuropore +  
nipple +  
non-neural ectoderm +  
nose +  
nose anterior margin 
nose vertex 
notochord +  
notochord posterior region 
notochordal canal 
nucleus pulposus 
nuptial pad 
ocular fundus 
ocular surface region +  
oculomotor nerve 
olfactory apparatus chamber +  
olfactory nerve 
olivary body +  
opercular part of inferior frontal gyrus 
ophthalmic nerve +  
opisthotic 
optic cup +  
optic disc 
optic vesicle +  
ora serrata of retina 
orbital part of frontal bone 
organ +  
organ system subdivision +  
oronasal membrane 
osseus cochlea +  
osseus cochlear canal 
osseus labyrinth vestibule +  
osseus semicircular canal 
osseus spiral lamina 
otic capsule +  
otic vesicle protrusion +  
otolith +  
otolith organ +  
otolithic part of statoconial membrane +  
outer root sheath companion layer 
Pacinian corpuscle 
palpebral fissure 
pancreatic system 
papillary layer of dermis +  
parafoveal part of retina 
parapineal organ 
parasagittal crest 
parasphenoid flange 
parenchyma of central nervous system +  
parenchyma of mammary gland 
parietal organ 
pars amphibiorum 
pars basilaris 
pars inferior of labyrinth 
pars intercerebralis 
pars intermedia of adenohypophysis 
pars plana of ciliary body 
pars plicata of ciliary body 
pars tuberalis of adenohypophysis 
pectinate line 
pectoral fin fold 
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 
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 lamina recurvata 
posterior lateral line primordium +  
posterior maxillary process +  
posterior maxillary process dorsal process 
posterior neural keel +  
posterior neural rod +  
posterior presumptive neural plate 
posterior ramus of cleithrum 
posterior segment of eyeball +  
postnasal wall 
postorbital process 
pre-Botzinger complex 
pre-chordal neural plate +  
presubiculum +  
primary choana 
primary nerve cord +  
primary olfactory fiber layer 
primary vitreous 
primitive superior sagittal sinus +  
processus lingularis of nasal skeleton 
processus posterior of parasphenoid 
procurrent spur 
prootic bone +  
pupillary membrane 
Purkinje cell layer corpus cerebelli 
Purkinje cell layer valvula cerebelli 
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 fenestrae ovalis 
regional part of brain +  
regional part of spinal cord +  
Reissner's fiber +  
remnant of Rathke's pouch 
renal collecting system +  
reproductive system +  
respiratory system +  
reticular layer of dermis 
reticular membrane of spiral organ 
retina +  
retrochiasmatic area 
rhamphotheca +  
rhinarium 
rhombomere boundary 
ridge of tooth +  
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 
saccule duct 
saccus dorsalis 
sacral neural crest 
sallet 
scale primordium 
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 
seydels palatal process 
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 
spina acromioidea 
spinal cord +  
spinal cord neural keel 
spinal cord neural rod 
spinal cord neural tube 
spiral ligament 
spiral modiolar artery 
spiral organ of cochlea +  
spiral prominence of cochlear duct 
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 +  
stylar shelf +  
subarachnoid space of brain +  
subcupular meshwork of statoconial membrane 
subdivision of conjunctiva +  
subdivision of spinal cord central canal +  
submucosa of anal canal 
subolfactory process 
subotic alae 
substantia nigra pars compacta 
substantia nigra pars reticulata 
substratum of layer of retina +  
sulcus of brain +  
supcapsular region of anterior region of lens 
supcapsular region of posterior region of lens 
superior branch of oculomotor nerve 
superior parietal cortex 
supraorbital flange 
supraorbital foramen +  
suspensory ligament of breast 
suspensory ligament of lens 
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 
terminal part of the cochlear canal 
tooth crown +  
tooth enamel organ +  
tooth root +  
tract of brain +  
transverse nasal root vein 
triangular part of inferior frontal gyrus 
trunk neural crest +  
trunk taste bud 
tunica fibrosa of eyeball +  
type 1 odontode 
unencapsulated tactile receptor 
upper eyelid protuberances 
urohyal lateral process 
urohyal median process 
urophysis 
utricle duct 
utricle valve 
utriculosaccular duct +  
uvea +  
vacuolated notochordal tissue 
vagal neural crest +  
vallecula of cerebellum 
vascular system +  
vasculature of brain +  
venous dural sinus +  
venous system of brain 
ventral limb of posttemporal 
ventral part of optic cup +  
ventricular system of brain +  
ventricular system of central nervous system +  
ventricular zone 
Verson's gland 
vestibular aqueduct 
vestibular fissure of the cochlear canal 
vestibular labyrinth +  
vestibular membrane of cochlear duct 
vestibular nerve 
vestibulocochlear nerve +  
vitreous body +  
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 +  
water vascular system +  
zona limitans intrathalamica 
zone of basilar membrane of cochlea +  
zone of skin +  
zygomatic process of frontal bone 

Synonyms
Exact Synonyms: brain ventricular system
Xrefs: CALOHA:TS-1295 ;   EMAPA:37447 ;   FMA:242787 ;   VHOG:0000005

paths to the root