Cytomer Ontology Browser
Cytomer is an ontology describing the human anatomy and development and comprises morphological structures from the cell level up to parts of the body. Structures are linked to Carnegie stages and under each other with various relations.

The Cytomer ontology can be differently used, depending on the intended use. The tree below displays the class hierarchy of the ontology and gives detailed information of the selected ontology class.
OntoScope is a full featured graphical viewer enabling the user to browse Cytomer as a graph. A Java web start version of OntoScope can be launched here.

The OBA service enables access to Cytomer in a programmatic way for integration into other projects. The oba service extends Cytomer with semantic functions. More information is available on the homepage of the oba project. http://www.bioinf.med.uni-goettingen.de/projects/oba

You can download the ontology in OWL-format here.
ontology tree
  • Thing
    • anatomical_entity
      • anatomical_building_block
        • part_of_blood_vessel
        • tendon
        • joint
        • first_polar_body
        • anatomical_measure
        • part_of_human_body
        • beard
        • muscle
        • tendon_sheath
        • part_of_fascia
        • nerve_system_element
        • bone
        • group_of_muscles
        • part_of_ligament
        • part_of_bone
        • space
        • organ
        • cartilage
        • physical_liquid
        • part_of_joint
        • ROOT
        • extraembryonic_component
        • tissue
        • ligament
        • cell
        • fascia
        • tooth
        • zygote
        • bursa_of_muscular_system
        • part_of_muscle
        • blood_vessel
        • part_of_tendon_sheath
        • membrane
        • embryonic_structure
        • part_of_membrane
        • part_of_nerve_system_element
        • part_of_lymphatic_vessel
        • lymphatic_vessel
        • junction_element
        • part_of_organ
          • part_of_brain
          • part_of_digestive_organ
            • part_of_liver
            • part_of_stomach
            • part_of_mouth
            • part_of_pancreas
            • part_of_small_intestine
              • Peyers_patches_in_small_intestine
              • adventitia_of_small_intestine
              • caudal_part_of_duodenum_of_midgut_
              • circular_folds_of_small_intestine
              • circular_stratum_of_small_intestine
              • duodenum
              • epithelial_lamina_of_small_intestine
              • frenulum_of_ileal_orifice
              • ileum
              • intestinal_glands_of_small_intestine
              • intestinal_villi
              • jejunum
              • longitudinal_stratum_of_small_intestine
              • mucosa_of_small_intestine
              • muscularis_mucosae_of_small_intestine
              • muscularis_of_small_intestine
              • part_of_duodenum
              • part_of_ileum
              • propria_mucosa_of_small_intestine
              • serosa_of_small_intestine
              • small_intestine_wall
              • submucosa_of_small_intestine
              • subserosa_of_small_intestine
            • part_of_oesophagus
            • part_of_large_intestine
            • part_of_gallbladder
          • part_of_endocrin_organ
          • part_of_gland
          • part_of_heart
          • part_of_integument_organ
          • part_of_larynx
          • part_of_lymphatic_organ
          • part_of_pharynx
          • part_of_respiratory_organ
          • part_of_sensory_organ
          • part_of_sexual_organ
          • part_of_spinal_cord
          • part_of_urine_organ
        • gland
        • part_of_tendon
        • part_of_tooth_and_part_of_parodontium
    • anatomical_abstract_concept
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Details

Name:

 duodenum
Alternative name: -
Medical name: Duodenum
Definition: The first, shortest and widest part of small intestine, it is about 25 cm in length; extending from the pylorus to the junction with the jejunum at the level of the first or second lumbar vertebra on the left side; it is divided into the superior part, the first part of which is the duodenal cap, the descending part, into which the bile and pancreatic ducts open, the horizontal part and the ascending part, terminating at the duodenojejunal junction
Present in stage: -
Relations: -