| labyrinthine wall of middle ear | A bony layer separating the middle from the internal ear or labyrinth; it contains the fenestra vestibuli and the fenestra cochleae. Synonym: paries labyrinthicus cavi tympani, labyrinthine wall of middle ear, medial wall of middle ear. (05 Mar 2000) |
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| focal gallbladder wall thickening | <radiology> Primary gall bladder carcinoma, adenomyomatosis / hyperplastic cholecystosis, adenomatous polyps, papillary adenomas, metastatic nodules, cholesterol polyps (associated with acoustic shadowing), metachromatic leukodystrophy (rare!) See also: diffuse thickening (12 Dec 1998) |
| lateral vaginal wall smear | A cytologic smear containing material obtained by scraping the lateral wall of the vagina near the junction of its upper and middle third; used for cytohormonal evaluation. (05 Mar 2000) |
| lateral wall of middle ear | The wall formed mainly by the tympanic membrane. Synonym: paries membranaceus cavi tympani, lateral wall of middle ear, membranous wall of middle ear. (05 Mar 2000) |
| lateral wall of orbit | A triangular wall of the orbit formed by the zygomatic bone, the greater wing of the sphenoid bone, and a small part of the frontal bone; posteriorly it is bounded by the superior and inferior orbital fissures. Synonym: paries lateralis orbitae. (05 Mar 2000) |
| lateral wall of tympanic cavity | The wall formed mainly by the tympanic membrane. Synonym: paries membranaceus cavi tympani, lateral wall of middle ear, membranous wall of middle ear. (05 Mar 2000) |
| anterior parietal artery | <anatomy, artery> The branch distributed to the anterior part of the parietal lobe. Synonym: arteria parietales anterior. (05 Mar 2000) |
| ascending parietal convolution | The anterior convolution of the parietal lobe, bounded in front by the central sulcus (fissure of Rolando) and posteriorly by the interparietal sulcus. Synonym: gyrus postcentralis, ascending parietal convolution, ascending parietal gyrus, posterior central convolution, posterior central gyrus. (05 Mar 2000) |
| ascending parietal gyrus | The anterior convolution of the parietal lobe, bounded in front by the central sulcus (fissure of Rolando) and posteriorly by the interparietal sulcus. Synonym: gyrus postcentralis, ascending parietal convolution, ascending parietal gyrus, posterior central convolution, posterior central gyrus. (05 Mar 2000) |
| parietal | 1. <anatomy> Of or pertaining to the walls of a cavity. 2. Pertaining to or located near the parietal bone, as the parietal lobe. (18 Nov 1997) |
| parietal angle | An angle formed by the meeting of the prolongation of two lines tangential to the most prominent part of the zygomatic arch and to the parietofrontal suture on each side; when the lines remain parallel the angle is zero; when they diverge it is negative. Synonym: Quatrefages' angle. (05 Mar 2000) |
| parietal arteries | Branches of the terminal part of the middle cerebral artery, divided into two branches: anterior parietal artery and posterior parietal artery. Synonym: arteriae parietales. (05 Mar 2000) |
| parietal bone | The side bone of the skull. (12 Dec 1998) |
| parietal border | Edge of a bone which articulates with the parietal bone. See: parietal border of frontal bone, parietal border of sphenoid bone, parietal border of temporal bone. Synonym: margo parietalis, parietal margin. (05 Mar 2000) |
| parietal border of frontal bone | The margin of the frontal bone that articulates with the parietal bone. Synonym: margo parietalis ossis frontalis. (05 Mar 2000) |