| PCL | pacing cycle length; persistent corpus luteum; plasma cell leukemia; posterior chamber lens; posteri... |
|---|---|
| PD | Doctor of Pharmacy; Dublin Pharmacopoeia; interpupillary distance; Paget disease; pancreatic duct; p... |
| PICA | percutaneous transluminal coronary angioplasty; Porch Index of Communicative Abilities; posterior in... |
| PP | diphosphate group; emphysema [pink puffers]; near point of accommodation [Lat. punctum proximum]; pa... |
| PPA | palpation, percussion, auscultation; pepsin A; phenylpropanolamine; phenylpyruvic acid; Pittsburgh p... |
| membranae intercostalia | The membranous layers between ribs. Synonym: membranae intercostalia, intercostal ligaments, ligamenta intercostalia. (05 Mar 2000) |
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| vena recessus lateralis ventriculi quarti | A small vein originating in the cerebellar tonsil, coursing by the lateral recess of the fourth ventricle on its way to terminate in the petrosal vein. Synonym: vein of lateral recess of fourth ventricle. (05 Mar 2000) |
| recessus | Synonym: recess. Origin: L. A withdrawing, a receding (05 Mar 2000) |
| recessus anterior | A circumscript deepening of the interpeduncular fossa in the direction of the mamillary bodies. Synonym: recessus anterior. (05 Mar 2000) |
| recessus cochlearis | A small depression on the inner wall of the vestibule of the labyrinth at the portion of the pyramid of vestibule, between the two limbs into which the vestibular crest divides posteriorly; it is perforated by foramina giving passage to fibres which the cochlear branch of the vestibulocochlear nerve sends to the posterior extremity of the cochlear duct. Synonym: recessus cochlearis, Reichert's cochlear recess. (05 Mar 2000) |
| recessus costodiaphragmaticus | The cleftlike extension of the pleural cavity between the diaphragm and the rib cage; pleural effusions collect here when in the upright position, and since the lung only partially enters, this is the site of thoracocentesis. Synonym: recessus costodiaphragmaticus, phrenicocostal sinus. (05 Mar 2000) |
| recessus costomediastinalis | The recess of the pleural cavity between the costal cartilages and the mediastinum. Synonym: recessus costomediastinalis, costomediastinal sinus. (05 Mar 2000) |
| recessus duodenalis inferior | The variable peritoneal recess which lies behind the inferior duodenal fold and along the ascending part of the duodenum. Synonym: recessus duodenalis inferior, Gruber-Landzert fossa, inferior duodenal fossa. (05 Mar 2000) |
| recessus duodenalis superior | A peritoneal recess extending upward behind the superior duodenal fold. Synonym: recessus duodenalis superior, duodenojejunal fossa, duodenojejunal recess, Jonnesco's fossa, superior duodenal fossa. (05 Mar 2000) |
| recessus ellipticus | An oval depression in the roof and inner wall of the vestibule of the labyrinth, lodging the utriculus. Synonym: recessus ellipticus, fovea elliptica, fovea hemielliptica. (05 Mar 2000) |
| recessus epitympanicus | The upper portion of the tympanic cavity above the tympanic membrane; it contains the head of the malleus and the body of the incus. Synonym: recessus epitympanicus, attic, epitympanic space, epitympanum, Hyrtl's epitympanic recess, tympanic attic. (05 Mar 2000) |
| recessus hepatorenalis | The deep recess of the peritoneal cavity on the right side extending upward between the liver in front and the kidney and suprarenal behind; this is a gravity-dependent portion of the peritoneal cavity when in the supine position; fluids draining from the omental bursa drain here. Synonym: recessus hepatorenalis, hepatorenal pouch, Morison's pouch. (05 Mar 2000) |
| recessus ileocaecalis inferior | A deep fossa sometimes found between the ileocaecal fold, the mesoappendix, and the caecum. Synonym: recessus ileocaecalis inferior. (05 Mar 2000) |
| recessus ileocaecalis superior | A shallow pouch occasionally existing between the terminal ileum, the caecum, and the ileocolic artery when the latter is present. Synonym: recessus ileocaecalis superior. (05 Mar 2000) |
| recessus inferior omentalis | A recess of the omental bursa extending between anterior and posterior layers of the great omentum. Synonym: recessus inferior omentalis. (05 Mar 2000) |