format-version: 1.2
date: 16:07:2008 16:55
saved-by: Thorsten Henrich
auto-generated-by: OBO-Edit 2.000-beta41
default-namespace: bila

[Term]
id: BILA:0000000
name: anatomical entity
xref: CARO:0000000

[Term]
id: BILA:0000003
name: anatomical structure
def: "Material anatomical entity that has inherent 3D shape and is generated by coordinated expression of the organism's own genome." [CARO:MAH]
xref: CARO:0000003
is_a: BILA:0000006 ! material anatomical entity

[Term]
id: BILA:0000004
name: portion of organism substance
def: "Material anatomical entity in a gaseous, liquid, semisolid or solid state; produced by anatomical structures or derived from inhaled and ingested substances that have been modified by anatomical structures as they pass through the body." [CARO:MAH]
xref: CARO:0000004
is_a: BILA:0000006 ! material anatomical entity

[Term]
id: BILA:0000005
name: anatomical space
def: "Non-material anatomical entity of three dimensions, that is generated by morphogenetic or other physiologic processes; is surrounded by one or more anatomical structures; contains one or more organism substances or anatomical structures." [CARO:MAH]
xref: CARO:0000005
is_a: BILA:0000007 ! immaterial anatomical entity

[Term]
id: BILA:0000006
name: material anatomical entity
def: "Anatomical entity that has mass." [CARO:MAH]
xref: CARO:0000006
is_a: BILA:0000000 ! anatomical entity

[Term]
id: BILA:0000007
name: immaterial anatomical entity
def: "Anatomical entity that has no mass." [CARO:MAH]
xref: CARO:0000007
is_a: BILA:0000000 ! anatomical entity

[Term]
id: BILA:0000008
name: anatomical line
def: "Non-material anatomical entity of one dimension, which forms a boundary of an anatomical surface or is a modulation of an anatomical surface." [CARO:MAH]
xref: CARO:0000008
is_a: BILA:0000007 ! immaterial anatomical entity

[Term]
id: BILA:0000009
name: anatomical point
def: "Non-material anatomical entity of zero dimension, which forms a boundary of an anatomical line or surface." [CARO:MAH]
xref: CARO:0000009
is_a: BILA:0000007 ! immaterial anatomical entity

[Term]
id: BILA:0000010
name: anatomical surface
def: "Non-material anatomical entity of two dimensions, that is demarcated by anatomical lines or points on the external or internal surfaces of anatomical structures." [CARO:MAH]
xref: CARO:0000010
is_a: BILA:0000007 ! immaterial anatomical entity

[Term]
id: BILA:0000011
name: anatomical system
def: "Anatomical group that is has as its parts distinct anatomical structures interconnected by anatomical structures at a lower level of granularity." [CARO:MAH]
xref: CARO:0000011
is_a: BILA:0000054 ! anatomical group

[Term]
id: BILA:0000012
name: multi-cellular organism
def: "Anatomical structure that is an individual member of a species and consists of more than one cell." [CARO:MAH]
xref: CARO:0000012
is_a: BILA:0000003 ! anatomical structure

[Term]
id: BILA:0000013
name: cell
def: "Anatomical structure that has as its parts a maximally connected cell compartment surrounded by a plasma membrane." [CARO:MAH]
xref: CARO:0000013
is_a: BILA:0000003 ! anatomical structure

[Term]
id: BILA:0000014
name: cell component
def: "Anatomical structure that is a direct part of the cell." [CARO:MAH]
xref: CARO:0000014
is_a: BILA:0000003 ! anatomical structure
relationship: part_of BILA:0000013 ! cell

[Term]
id: BILA:0000015
name: excretory system
def: "The excretory system is the system of an organism that mainly performs the function of excretion, the bodily process of discharging wastes. It is responsible for the elimination of wastes produced by the processes that maintain homeostasis." [4DXp:TH]
synonym: "renal system" EXACT []
relationship: part_of BILA:0000122 ! urogenital system
created_by: henrich
creation_date: 2008-03-05T02:00:00Z

[Term]
id: BILA:0000016
name: cardiovascular system
is_a: BILA:0000011 ! anatomical system
created_by: henrich
creation_date: 2008-03-04T11:11:00Z

[Term]
id: BILA:0000017
name: eye
def: "The minimum setting for an eye involves a photo-receptor in the vicinity of shading pigment, which allows the detection of the direction of light. A simple eye consists of one photoreceptor and one pigment cell. Such prototype two- celled eyes are found, for example, in trochophora larvae and in planarians. Our definition also includes single photosensitive cells containing both photo- and shading pigment (eg. unicellular algae, turbellarian 'epidermal eyes'), but excludes photoreceptor cells not combined with shading pigment (eg. deep brain photoreceptor cells)." [PMID:11604122]
is_a: BILA:0000140 ! photosensory system
created_by: henrich
creation_date: 2008-07-16T03:27:46Z

[Term]
id: BILA:0000018
name: appendage
def: "An appendage is an external body part, or natural prolongation, that protrudes from an organism's body, such as a vertebrate's limbs." [4DXp:TH]
is_a: BILA:0000032 ! organism subdivision
created_by: henrich
creation_date: 2008-04-21T10:24:00Z

[Term]
id: BILA:0000019
name: compound organ component
def: "Multi-tissue structure that is part of a compound organ." [CARO:MAH]
xref: CARO:0000019
is_a: BILA:0000055 ! multi-tissue structure
relationship: part_of BILA:0000024 ! compound organ

[Term]
id: BILA:0000020
name: heart
relationship: part_of BILA:0000016 ! cardiovascular system
created_by: henrich
creation_date: 2008-03-04T11:12:00Z

[Term]
id: BILA:0000021
name: simple organ
def: "Multi-tissue structure that is not part of a compound organ." [CARO:MAH]
xref: CARO:0000021
is_a: BILA:0000055 ! multi-tissue structure

[Term]
id: BILA:0000024
name: compound organ
def: "Anatomical structure that has as its parts two or more multi-tissue structures of at least two different types and which through specific morphogenetic processes forms a single distinct structural unit demarcated by bona fide boundaries from other distinct anatomical structures of different types." [CARO:MAH]
xref: CARO:0000024
is_a: BILA:0000003 ! anatomical structure

[Term]
id: BILA:0000027
name: male organism
def: "Gonochoristic organism that can produce male gametes." [CARO:MAH]
xref: CARO:0000027
is_a: BILA:0000048 ! gonochoristic organism

[Term]
id: BILA:0000028
name: female organism
def: "Gonochoristic organism that can produce female gametes." [CARO:MAH]
xref: CARO:0000028
is_a: BILA:0000048 ! gonochoristic organism

[Term]
id: BILA:0000029
name: hermaphroditic organism
def: "Multi-cellular organism that can produce both male and female gametes." [CARO:MAH]
synonym: "dioecious organism" RELATED []
xref: CARO:0000029
is_a: BILA:0000012 ! multi-cellular organism

[Term]
id: BILA:0000030
name: asexual organism
def: "Multi-cellular organism that does not produce gametes." [CARO:MAH]
xref: CARO:0000030
is_a: BILA:0000012 ! multi-cellular organism

[Term]
id: BILA:0000032
name: organism subdivision
def: "Anatomical structure which is a primary subdivision of whole organism. The mereological sum of these is the whole organism." [CARO:MAH]
xref: CARO:0000032
is_a: BILA:0000003 ! anatomical structure

[Term]
id: BILA:0000034
name: embryonic structure
is_a: BILA:0000003 ! anatomical structure
created_by: henrich
creation_date: 2008-03-04T11:34:00Z

[Term]
id: BILA:0000035
name: germ layer
is_a: BILA:0000034 ! embryonic structure
created_by: henrich
creation_date: 2008-03-04T11:36:00Z

[Term]
id: BILA:0000036
name: ectoderm
is_a: BILA:0000035 ! germ layer
created_by: henrich
creation_date: 2008-03-04T11:37:00Z

[Term]
id: BILA:0000037
name: mesoderm
is_a: BILA:0000035 ! germ layer
created_by: henrich
creation_date: 2008-03-04T11:38:00Z

[Term]
id: BILA:0000038
name: endoderm
is_a: BILA:0000035 ! germ layer
created_by: henrich
creation_date: 2008-03-04T11:38:00Z

[Term]
id: BILA:0000039
name: neuroectoderm
relationship: part_of BILA:0000036 ! ectoderm
created_by: henrich
creation_date: 2008-03-04T11:40:00Z

[Term]
id: BILA:0000040
name: acellular anatomical structure
def: "Anatomical structure that consists of cell parts and cell substances and together does not constitute a cell or a tissue." [CARO:MAH]
xref: CARO:0000040
is_a: BILA:0000003 ! anatomical structure

[Term]
id: BILA:0000041
name: anatomical cluster
def: "Anatomical group that has its parts adjacent to one another." [CARO:MAH]
xref: CARO:0000041
is_a: BILA:0000054 ! anatomical group

[Term]
id: BILA:0000042
name: extraembryonic structure
def: "Anatomical structure that is contiguous with the embryo and is comprised of portions of tissue or cells that will not contribute to the embryo." [CARO:MAH]
xref: CARO:0000042
is_a: BILA:0000003 ! anatomical structure

[Term]
id: BILA:0000043
name: portion of tissue
def: "Anatomical structure, that consists of similar cells and intercellular matrix, aggregated according to genetically determined spatial relationships." [CARO:MAH]
xref: CARO:0000043
is_a: BILA:0000003 ! anatomical structure

[Term]
id: BILA:0000044
name: visceral mesoderm
relationship: part_of BILA:0000037 ! mesoderm
created_by: henrich
creation_date: 2008-03-04T11:41:00Z

[Term]
id: BILA:0000045
name: sequential hermaphroditic organism
def: "Hermaphroditic organism that produces gametes first of one sex, and then later of the other sex." [CARO:MAH]
synonym: "consecutive hermaphroditic organism" RELATED []
xref: CARO:0000045
is_a: BILA:0000029 ! hermaphroditic organism

[Term]
id: BILA:0000046
name: synchronous hermaphroditic organism
def: "Hermaphroditic organism that produces both male and female gametes at the same time." [CARO:MAH]
synonym: "serially hermaphroditic organism" RELATED []
xref: CARO:0000046
is_a: BILA:0000029 ! hermaphroditic organism

[Term]
id: BILA:0000047
name: somatic mesoderm
relationship: part_of BILA:0000037 ! mesoderm
created_by: henrich
creation_date: 2008-03-04T11:42:00Z

[Term]
id: BILA:0000048
name: gonochoristic organism
def: "Multi-cellular organism that has male and female sexes." [CARO:MAH]
synonym: "monoecious organism" RELATED []
xref: CARO:0000048
is_a: BILA:0000012 ! multi-cellular organism

[Term]
id: BILA:0000049
name: protandrous hermaphroditic organism
def: "Sequential hermaphroditic organism that produces\ngametes first of the male sex, and then later of the\nfemale sex." [CARO:MAH]
xref: CARO:0000049
is_a: BILA:0000045 ! sequential hermaphroditic organism

[Term]
id: BILA:0000050
name: protogynous hermaphroditic organism
def: "Sequential hermaphroditic organism that produces\ngametes first of the female sex, and then later of the\nmale sex." [CARO:MAH]
xref: CARO:0000050
is_a: BILA:0000045 ! sequential hermaphroditic organism

[Term]
id: BILA:0000051
name: cardiac mesoderm
relationship: part_of BILA:0000037 ! mesoderm
created_by: henrich
creation_date: 2008-03-04T11:55:00Z

[Term]
id: BILA:0000052
name: blastomere
is_a: BILA:0000034 ! embryonic structure
created_by: henrich
creation_date: 2008-03-04T11:59:00Z

[Term]
id: BILA:0000053
name: organizer
synonym: "Spemann's organizer" RELATED []
is_a: BILA:0000034 ! embryonic structure
created_by: henrich
creation_date: 2008-03-04T11:59:00Z

[Term]
id: BILA:0000054
name: anatomical group
def: "Anatomical structure consisting of at least two non-overlapping organs, multi-tissue aggregates or portion of tissues or cells of different types that does not constitute an organism, organ, multi-tissue aggregate, or portion of tissue." [CARO:MAH]
xref: CARO:0000054
is_a: BILA:0000003 ! anatomical structure

[Term]
id: BILA:0000055
name: multi-tissue structure
def: "Anatomical structure that has as its parts two or more portions of tissue of at least two different types and which through specific morphogenetic processes forms a single distinct structural unit demarcated by bona-fide boundaries from other distinct structural units of different types." [CARO:MAH]
xref: CARO:0000055
is_a: BILA:0000003 ! anatomical structure

[Term]
id: BILA:0000056
name: embryonic organism
synonym: "developing organism" RELATED []
is_a: BILA:0000012 ! multi-cellular organism
created_by: henrich
creation_date: 2008-03-04T12:00:00Z

[Term]
id: BILA:0000057
name: zygote embryo
is_a: BILA:0000056 ! embryonic organism
created_by: henrich
creation_date: 2008-03-04T12:01:00Z

[Term]
id: BILA:0000058
name: cleaving embryo
is_a: BILA:0000056 ! embryonic organism
relationship: develops_from BILA:0000057 ! zygote embryo
created_by: henrich
creation_date: 2008-03-04T12:01:00Z

[Term]
id: BILA:0000059
name: blastula embryo
is_a: BILA:0000056 ! embryonic organism
relationship: develops_from BILA:0000058 ! cleaving embryo
created_by: henrich
creation_date: 2008-03-04T12:03:00Z

[Term]
id: BILA:0000060
name: gastrula embryo
is_a: BILA:0000056 ! embryonic organism
relationship: develops_from BILA:0000059 ! blastula embryo
created_by: henrich
creation_date: 2008-03-04T12:04:00Z

[Term]
id: BILA:0000061
name: neurula embryo
is_a: BILA:0000056 ! embryonic organism
relationship: develops_from BILA:0000060 ! gastrula embryo
created_by: henrich
creation_date: 2008-03-04T12:05:00Z

[Term]
id: BILA:0000062
name: cell space
def: "Anatomical space that is part of a cell." [CARO:MAH]
xref: CARO:0000062
is_a: BILA:0000005 ! anatomical space

[Term]
id: BILA:0000063
name: portion of cell substance
def: "Portion of organism substance located within a cell." [CARO:MAH]
xref: CARO:0000063
is_a: BILA:0000004 ! portion of organism substance

[Term]
id: BILA:0000064
name: single cell organism
def: "Cell that is an individual member of a species." [CARO:MAH]
xref: CARO:0000064
is_a: BILA:0000013 ! cell

[Term]
id: BILA:0000065
name: basal lamina
def: "Acellular anatomical structure that consists of a thin sheet of fibrous proteins that underlie and support the cells of an epithelium. It separates the cells of an epithelium from any underlying tissue." [CARO:MAH]
xref: CARO:0000065
is_a: BILA:0000040 ! acellular anatomical structure

[Term]
id: BILA:0000066
name: epithelium
def: "Portion of tissue, that consists of one or more layers of epithelial cells connected to each other by cell junctions and which is underlain by a basal lamina." [CARO:MAH]
xref: CARO:0000066
is_a: BILA:0000043 ! portion of tissue

[Term]
id: BILA:0000067
name: simple cuboidal epithelium
def: "Unilaminar epithelium that consists of a single layer of cuboidal cells." [CARO:MAH]
xref: CARO:0000067
is_a: BILA:0000073 ! unilaminar epithelium

[Term]
id: BILA:0000068
name: simple columnar epithlium
def: "Unilaminar epithelium that consists of a single layer of columnar cells." [CARO:MAH]
xref: CARO:0000068
is_a: BILA:0000073 ! unilaminar epithelium

[Term]
id: BILA:0000069
name: multilaminar epithelium
def: "Epithelium that consists of more than one layer of epithelial cells." [CARO:MAH]
xref: CARO:0000069
is_a: BILA:0000066 ! epithelium

[Term]
id: BILA:0000070
name: simple squamous epithelium
def: "Unilaminar epithelium that consists of a single layer of squamous cells." [CARO:MAH]
xref: CARO:0000070
is_a: BILA:0000073 ! unilaminar epithelium

[Term]
id: BILA:0000071
name: atypical epithelium
def: "Epithelium that consists of epithelial cells not arranged in one ore more layers." [CARO:MAH]
xref: CARO:0000071
is_a: BILA:0000066 ! epithelium

[Term]
id: BILA:0000072
name: cavitated compound organ
def: "Compound organ that contains one or more macroscopic anatomical spaces." [CARO:MAH]
xref: CARO:0000072
is_a: BILA:0000024 ! compound organ

[Term]
id: BILA:0000073
name: unilaminar epithelium
def: "Epithelium that consists of a single layer of epithelial cells." [CARO:MAH]
xref: CARO:0000073
is_a: BILA:0000066 ! epithelium

[Term]
id: BILA:0000074
name: solid compound organ
def: "Compound organ that does not contain macroscopic anatomical spaces." [CARO:MAH]
xref: CARO:0000074
is_a: BILA:0000024 ! compound organ

[Term]
id: BILA:0000075
name: segmenting embryo
is_a: BILA:0000056 ! embryonic organism
relationship: develops_from BILA:0000061 ! neurula embryo
created_by: henrich
creation_date: 2008-03-04T12:06:00Z

[Term]
id: BILA:0000076
name: juvenile organism
is_a: BILA:0000012 ! multi-cellular organism
relationship: develops_from BILA:0000075 ! segmenting embryo
created_by: henrich
creation_date: 2008-03-04T12:09:00Z

[Term]
id: BILA:0000077
name: epithelial cell
def: "Cell which has as its part a cytoskeleton that allows for tight cell to cell contact and which has apical-basal cell polarity." [CARO:MAH]
xref: CARO:0000077
is_a: BILA:0000013 ! cell

[Term]
id: BILA:0000078
name: adult organism
is_a: BILA:0000012 ! multi-cellular organism
relationship: develops_from BILA:0000076 ! juvenile organism
created_by: henrich
creation_date: 2008-03-04T12:10:00Z

[Term]
id: BILA:0000079
name: nervous system
is_a: BILA:0000011 ! anatomical system
relationship: develops_from BILA:0000039 ! neuroectoderm
created_by: henrich
creation_date: 2008-03-04T04:54:00Z

[Term]
id: BILA:0000080
name: central nervous system
def: "In physiological terms, a CNS integrates and processes sensory information coming from the periphery, and initiates body-wide responses via neurosecretion into the body fluid or direct stimulation of the body musculature. Anatomically, a CNS is a delimited nervous tissue that comprises distinct agglomerations of functionally specialized neurons (nuclei) interconnected by axon tracts (neuropil). The CNS may be subdivided into separate parts (ganglia). It connects to the periphery via nerves. A CNS thus defined is found in various shapes and degrees of complexity in different animal phyla, including vertebrates and many invertebrates, such as echinoderms, arthropods, nematodes, molluscs and annelids." [PMID:18192182]
synonym: "CNS" RELATED []
relationship: part_of BILA:0000079 ! nervous system
created_by: henrich
creation_date: 2008-03-04T05:26:00Z

[Term]
id: BILA:0000081
name: peripheral nervous system
synonym: "PNS" RELATED []
relationship: part_of BILA:0000079 ! nervous system
created_by: henrich
creation_date: 2008-03-04T05:27:00Z

[Term]
id: BILA:0000082
name: digestive system
synonym: "alimentary system" RELATED []
is_a: BILA:0000011 ! anatomical system
created_by: henrich
creation_date: 2008-03-04T05:31:00Z

[Term]
id: BILA:0000083
name: digestive tract
synonym: "<new synonym>" RELATED []
synonym: "alimentary canal" EXACT []
synonym: "gastrointestinal tract" EXACT []
relationship: develops_from BILA:0000084 ! primitive gut
relationship: part_of BILA:0000082 ! digestive system
created_by: henrich
creation_date: 2008-03-04T05:40:00Z

[Term]
id: BILA:0000084
name: primitive gut
is_a: BILA:0000034 ! embryonic structure
created_by: henrich
creation_date: 2008-03-04T05:43:00Z

[Term]
id: BILA:0000085
name: foregut
relationship: develops_from BILA:0000036 ! ectoderm
relationship: part_of BILA:0000083 ! digestive tract
created_by: henrich
creation_date: 2008-03-04T05:46:00Z

[Term]
id: BILA:0000086
name: midgut
relationship: develops_from BILA:0000038 ! endoderm
relationship: part_of BILA:0000083 ! digestive tract
created_by: henrich
creation_date: 2008-03-04T05:47:00Z

[Term]
id: BILA:0000087
name: hindgut
relationship: develops_from BILA:0000036 ! ectoderm
relationship: part_of BILA:0000083 ! digestive tract
created_by: henrich
creation_date: 2008-03-04T05:47:00Z

[Term]
id: BILA:0000088
name: musculature system
is_a: BILA:0000011 ! anatomical system
created_by: henrich
creation_date: 2008-03-05T11:08:00Z

[Term]
id: BILA:0000099
name: sensory system
relationship: part_of BILA:0000081 ! peripheral nervous system
created_by: henrich
creation_date: 2008-03-05T11:35:00Z

[Term]
id: BILA:0000103
name: reproductive system
relationship: part_of BILA:0000122 ! urogenital system
created_by: henrich
creation_date: 2008-03-05T02:04:00Z

[Term]
id: BILA:0000104
name: immune system
is_a: BILA:0000011 ! anatomical system
created_by: henrich
creation_date: 2008-03-05T02:14:00Z

[Term]
id: BILA:0000115
name: head
def: "The head of an animal is the anterior part that usually comprises the brain, eyes, ears, nose, and mouth." [4DXp:TH]
is_a: BILA:0000032 ! organism subdivision
created_by: henrich
creation_date: 2008-03-05T03:03:00Z

[Term]
id: BILA:0000116
name: trunk
is_a: BILA:0000032 ! organism subdivision
created_by: henrich
creation_date: 2008-03-05T03:04:00Z

[Term]
id: BILA:0000117
name: tail
is_a: BILA:0000032 ! organism subdivision
created_by: henrich
creation_date: 2008-03-05T03:04:00Z

[Term]
id: BILA:0000118
name: surface
synonym: "skin" RELATED []
is_a: BILA:0000032 ! organism subdivision
created_by: henrich
creation_date: 2008-03-05T03:04:00Z

[Term]
id: BILA:0000122
name: urogenital system
is_a: BILA:0000011 ! anatomical system
created_by: henrich
creation_date: 2008-03-10T10:10:00Z

[Term]
id: BILA:0000123
name: gonad
relationship: part_of BILA:0000103 ! reproductive system
created_by: henrich
creation_date: 2008-03-10T10:18:00Z

[Term]
id: BILA:0000124
name: testis
is_a: BILA:0000123 ! gonad
created_by: henrich
creation_date: 2008-03-10T10:18:00Z

[Term]
id: BILA:0000125
name: ovary
is_a: BILA:0000123 ! gonad
created_by: henrich
creation_date: 2008-03-10T10:19:00Z

[Term]
id: BILA:0000126
name: protonephridium
relationship: part_of BILA:0000015 ! excretory system
created_by: henrich
creation_date: 2008-03-10T10:44:00Z

[Term]
id: BILA:0000127
name: metanephridium
relationship: part_of BILA:0000015 ! excretory system
created_by: henrich
creation_date: 2008-03-10T10:45:00Z

[Term]
id: BILA:0000128
name: nephros
created_by: henrich
creation_date: 2008-03-10T10:49:00Z

[Term]
id: BILA:0000132
name: visceral muculature
is_a: BILA:0000088 ! musculature system
created_by: henrich
creation_date: 2008-03-10T10:50:00Z

[Term]
id: BILA:0000133
name: somatic musculature
is_a: BILA:0000088 ! musculature system
created_by: henrich
creation_date: 2008-03-10T10:50:00Z

[Term]
id: BILA:0000134
name: cardiac musculature
is_a: BILA:0000088 ! musculature system
created_by: henrich
creation_date: 2008-03-10T10:51:00Z

[Term]
id: BILA:0000135
name: brain
relationship: part_of BILA:0000080 ! central nervous system
created_by: henrich
creation_date: 2008-03-10T10:53:00Z

[Term]
id: BILA:0000136
name: nerve cord
relationship: part_of BILA:0000080 ! central nervous system
created_by: henrich
creation_date: 2008-03-10T10:53:00Z

[Term]
id: BILA:0000139
name: chemosensory system
is_a: BILA:0000099 ! sensory system
created_by: henrich
creation_date: 2008-03-10T10:55:00Z

[Term]
id: BILA:0000140
name: photosensory system
is_a: BILA:0000099 ! sensory system
created_by: henrich
creation_date: 2008-03-10T10:56:00Z

[Term]
id: BILA:0000142
name: mechanosensory system
is_a: BILA:0000099 ! sensory system
created_by: henrich
creation_date: 2008-03-10T10:58:00Z

[Term]
id: BILA:0000143
name: gustatory system
is_a: BILA:0000139 ! chemosensory system
created_by: henrich
creation_date: 2008-03-10T11:10:00Z

[Term]
id: BILA:0000144
name: olfactory system
is_a: BILA:0000139 ! chemosensory system
created_by: henrich
creation_date: 2008-03-10T11:10:00Z

[Term]
id: BILS:0000105
name: bilateria developmental stage
created_by: henrich
creation_date: 2008-03-05T02:30:00Z

[Term]
id: BILS:0000106
name: zygote stage
synonym: "one cell stage" RELATED []
is_a: BILS:0000105 ! bilateria developmental stage
created_by: henrich
creation_date: 2008-03-05T02:30:00Z

[Term]
id: BILS:0000107
name: cleavage stage
is_a: BILS:0000105 ! bilateria developmental stage
relationship: OBO_REL:preceded_by BILS:0000106 ! zygote stage
created_by: henrich
creation_date: 2008-03-05T02:31:00Z

[Term]
id: BILS:0000108
name: blastula stage
is_a: BILS:0000105 ! bilateria developmental stage
relationship: OBO_REL:preceded_by BILS:0000107 ! cleavage stage
created_by: henrich
creation_date: 2008-03-05T02:33:00Z

[Term]
id: BILS:0000109
name: gastrula stage
is_a: BILS:0000105 ! bilateria developmental stage
relationship: OBO_REL:preceded_by BILS:0000108 ! blastula stage
created_by: henrich
creation_date: 2008-03-05T02:36:00Z

[Term]
id: BILS:0000110
name: neurula stage
is_a: BILS:0000105 ! bilateria developmental stage
relationship: OBO_REL:preceded_by BILS:0000109 ! gastrula stage
created_by: henrich
creation_date: 2008-03-05T02:36:00Z

[Term]
id: BILS:0000111
name: organogenesis stage
synonym: "segmentation stage" RELATED []
is_a: BILS:0000105 ! bilateria developmental stage
relationship: OBO_REL:preceded_by BILS:0000110 ! neurula stage
created_by: henrich
creation_date: 2008-03-05T02:36:00Z

[Term]
id: BILS:0000112
name: juvenile stage
is_a: BILS:0000105 ! bilateria developmental stage
relationship: OBO_REL:preceded_by BILS:0000111 ! organogenesis stage
created_by: henrich
creation_date: 2008-03-05T02:37:00Z

[Term]
id: BILS:0000113
name: adult stage
is_a: BILS:0000105 ! bilateria developmental stage
relationship: OBO_REL:preceded_by BILS:0000112 ! juvenile stage
created_by: henrich
creation_date: 2008-03-05T02:37:00Z

[Typedef]
id: develops_from
name: develops_from
is_transitive: true

[Typedef]
id: OBO_REL:preceded_by
name: preceded_by
namespace: relationship
def: "P preceded_by P' if and only if: given any process p that instantiates P at a time t, there is some process p' such that p' instantiates P' at time t', and t' is earlier than t." [PMID:15892874]
comment: An example is: translation preceded_by transcription; aging preceded_by development (not however death preceded_by aging). Where derives_from links classes of continuants, preceded_by links classes of processes. Clearly, however, these two relations are not independent of each other. Thus if cells of type C1 derive_from cells of type C, then any cell division involving an instance of C1 in a given lineage is preceded_by cellular processes involving an instance of C.    The assertion P preceded_by P1 tells us something about Ps in general: that is, it tells us something about what happened earlier, given what we know about what happened later. Thus it does not provide information pointing in the opposite direction, concerning instances of P1 in general; that is, that each is such as to be succeeded by some instance of P. Note that an assertion to the effect that P preceded_by P1 is rather weak; it tells us little about the relations between the underlying instances in virtue of which the preceded_by relation obtains. Typically we will be interested in stronger relations, for example in the relation immediately_preceded_by, or in relations which combine preceded_by with a condition to the effect that the corresponding instances of P and P1 share participants, or that their participants are connected by relations of derivation, or (as a first step along the road to a treatment of causality) that the one process in some way affects (for example, initiates or regulates) the other.
is_transitive: true
is_a: OBO_REL:relationship ! relationship
inverse_of: OBO_REL:precedes ! precedes

[Typedef]
id: OBO_REL:precedes
name: precedes
is_transitive: true
is_a: OBO_REL:relationship ! relationship
inverse_of: OBO_REL:preceded_by ! preceded_by

[Typedef]
id: OBO_REL:relationship
name: relationship
def: "A relationship between two classes (terms). Relationships between classes are expressed in terms of relations on underlying instances." [PMID:15892874]

[Typedef]
id: part_of
name: part_of
is_transitive: true