| pars palpebralis musculi orbicularis oculi | pars palpebralis musculi orbicularis oculi |
|---|---|
| pars parasympathica | parasympathetic part |
| pars pelvina | pelvic part |
| pars pelvina ureteris | The part of the ureter between the brim of the pelvis and the urinary bladder; the upper pelvic portion of the embryologic urogenital sinus. Synonym: pars pelvina ureteris. (05 Mar 2000) |
| pars perpendicularis | Flat portion of a bone which lies within or closely approximates a vertical plane. See: perpendicular plate of ethmoid bone, perpendicular plate of palatine bone. Synonym: lamina perpendicularis, pars perpendicularis, vertical plate. (05 Mar 2000) |
| pars petrosa arteriae carotidis internae | <anatomy, artery> The part of the internal carotid artery in the carotid canal; its branches are carotidotympanic arteries and the artery of the pterygoid canal. Synonym: pars petrosa arteriae carotidis internae, petrous bone. (05 Mar 2000) |
| 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) |
| 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) |