| optic part of retina | The internal layer of the retina containing the neural elements, as distinguished from the outer leaf of the retina, or pigmented layer. Synonym: pars optica retinae, neural layer of retina, optic part of retina, stratum cerebrale retinae. (05 Mar 2000) |
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| oral part of pharynx | The area of the throat at the back of the mouth. (12 Dec 1998) |
| orbital part of frontal bone | The portion of the frontal bone that contributes to the formation of the orbits; the most rostral of three cortical convolutions that togetther form the inferior frontal gyrus. Synonym: pars orbitalis ossis frontalis. (05 Mar 2000) |
| orbital part of lacrimal gland | See: lacrimal gland. (05 Mar 2000) |
| orbital part of optic nerve | <anatomy, nerve> The part of the optic nerve between the eye and the optic canal. Synonym: pars orbitalis nervi optici. (05 Mar 2000) |
| orbital part of orbicularis oculi muscle | orbital part of orbicularis oculi muscle |
| osseous part of skeletal system | The part of the skeleton composed of bone. Synonym: pars ossea systematis skeletalis. (05 Mar 2000) |
| tense part of the tympanic membrane | The greater portion of the tympanic membrane which is tense and firm, contrasting with the small triangular flaccid part of tympanic membrane. Synonym: pars tensa membranae tympani, membrana tensa, membrana vibrans. (05 Mar 2000) |
| terminal part | See: middle cerebral artery, posterior cerebral artery. Synonym: terminal part. (05 Mar 2000) |
| thoracic part of aorta | The part of the descending aorta that supplies structures as far down as the diaphragm. Synonym: pars thoracica aortae, aorta thoracica, thoracic part of aorta. (05 Mar 2000) |
| thoracic part of oesophagus | The part of the oesophagus between the superior thoracic aperture and the diaphragm. Synonym: pars thoracica oesophagi. (05 Mar 2000) |
| thoracic part of spinal cord | The part of the spinal cord which consists of the twelve thoracic segments of the spinal cord from which the twelve pairs of thoracic nerves originate. Synonym: pars thoracica medullae spinalis, segmenta medullae spinalis thoracica. (05 Mar 2000) |
| thoracic part of thoracic duct | thoracic part of thoracic duct |
| thyropharyngeal part of inferior pharyngeal constrictor muscle | thyropharyngeal part of inferior pharyngeal constrictor muscle |
| tibiocalcaneal part of deltoid ligament | <anatomy> The part of the medial or deltoid ligament that extends from the medial malleolus to the sustentaculum tali of the calcaneus. Synonym: pars tibiocalcanea ligamenti medialis, calcaneotibial ligament, ligamentum calcaneotibiale, tibiocalcaneal part of deltoid ligament. (05 Mar 2000) |