| pars petrosa ossis temporalis | The part of the temporal bone that contains the structures of the inner ear and the second part of the internal carotid artery; in antenatal life it appears as a separate ossification centre. Synonym: pars petrosa ossis temporalis, periotic bone, petrosal bone, petrous pyramid. (05 Mar 2000) |
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| pars phallica | The lower portion of the urogenital sinus, related to the base of the genital tubercle. (05 Mar 2000) |
| pars pharyngea hypophyseos | Residual tissue derived from the hypophysial diverticulum that lies in the lamina propria of the nasopharynx; its cells and their arrangement are identical with those of the pars distalis. Synonym: pars pharyngea hypophyseos. (05 Mar 2000) |
| pars pigmentosa | pars pigmentosa |
| pars plana | The darkly pigmented posterior zone of the ciliary body continuous with the retina at the ora serrata. Synonym: ciliary disk, ciliary ring, pars plana. Origin: Mod. L. (05 Mar 2000) |
| pars planitis | <ophthalmology> A condition that causes inflammation of the peripheral retina and/or pars plana, with exudation into the overlying vitreous base, and oedema of the optic disk and adjacent retina. It is a form of granulomatous uveitis and is a common condition with no detectable focal pathology. It causes fibrovascular proliferation at the inferior ora serrata. (22 Sep 2002) |
| pars postcommunicalis arteria cerebri anterior | <anatomy, artery> The continuation of the anterior cerebral artery after the anterior communicating artery; it supplies branches to the cerebral cortex as it passes along the corpus callosum. Synonym: pars postcommunicalis arteria cerebri anterior, arteria pericallosa, postcommunical part of anterior cerebral artery. (05 Mar 2000) |
| pars posterior commissurae anterioris | <anatomy> The posterior portion of the anterior commissure of the brain. (05 Mar 2000) |
| pars posterior faciei diaphragmatis hepatis | That portion of the diaphragmatic surface of the liver that includes the bare area and the caudate lobe. Synonym: pars posterior faciei diaphragmatis hepatis. (05 Mar 2000) |
| pars posterior fornicis vaginae | The recess at the vault of the vagina; it is divided into an anterior part, posterior part, and lateral part with respect to its relation to the cervix of the uterus. The posterior part is clinically significant as the site for culdocentesis and culdoscopy. The proximity of the ureter (below) and the uterine artery (above) adjacent to the lateral fornix is important clinically. Synonym: fornix vaginae, fornix uteri. (05 Mar 2000) |
| pars postsulcalis | The back of the tongue; the upper surface of the tongue divided by the sulcus terminalis into an anterior two-thirds, the pars presulcalis (presulcal part), and a posterior one-third, the pars postsulcalis (postsulcal part). Synonym: dorsum linguae. (05 Mar 2000) |
| pars precommunicalis arteriae cerebri anterior | pars precommunicalis arteriae cerebri anterior |
| pars presulcalis | The back of the tongue; the upper surface of the tongue divided by the sulcus terminalis into an anterior two-thirds, the pars presulcalis (presulcal part), and a posterior one-third, the pars postsulcalis (postsulcal part). Synonym: dorsum linguae. (05 Mar 2000) |
| pars profunda glandulae parotideae | <anatomy> A salivary gland situated in front of and below the ear. (27 Sep 1997) |
| pars profunda musculi masseteri | pars profunda musculi masseteri |