| M/3 | middle third |
|---|---|
| MCA | major coronary artery; Maternity Center Association; medical care administration; methylcholanthrene... |
| MCAO | middle cerebral artery occlusion |
| MCAS | middle cerebral artery syndrome |
| MCAT | medical college admission test; middle cerebral artery thrombosis |
| sporulation-specific cell wall hydrolase | <enzyme> From bacillus subtilis; 255-amino acid protein mw 27.146 kD; hydrolyzes both vegetative cell walls and spore peptidoglycan genbank d14666 Registry number: EC 3.- Synonym: cwlc gene product (26 Jun 1999) |
|---|---|
| superior wall of orbit | Formed by the orbital plate of the frontal bone and the lesser wing of the sphenoid bone, the optic canal opens at its posterior limit; an indentation, the fossa for the lacrimal gland, is located in the anterolateral part of the roof. Synonym: paries superior orbitae, superior wall of orbit. (05 Mar 2000) |
| diffuse gallbladder wall thickening | <radiology> Criterion: gall bladder wall greater than 3 mm may appear thicker due to surrounding ascites, cholecystitis (acute or chronic), non-fasting state, chronic hypoalbuminaemia, hepatitis, congestive heart failure, fat in gall bladder fossa Cf: focal thickening (12 Dec 1998) |
| inferior wall of orbit | The floor of the orbit; the shortest of the four walls of the orbit, sloping upward from the orbital margin; it is comprised of the maxilla and orbital process of the palatine bone. Synonym: paries inferior orbitae, inferior wall of orbit. (05 Mar 2000) |
| inferior wall of tympanic cavity | The floor of the tympanic cavity; a thin plate of bone separating the tympanic cavity from the jugular fossa. Synonym: paries jugularis cavi tympani, fundus tympani, inferior wall of tympanic cavity, jugular wall of middle ear. (05 Mar 2000) |
| thoracic wall | In respiratory physiology, the total system of structures outside the lungs that move as a part of breathing; it includes the rib cage, diaphragm, abdominal wall, and abdominal contents. Synonym: thoracic wall. (05 Mar 2000) |
| enamel wall | In dentistry, the part of the wall of a cavity consisting of enamel. (05 Mar 2000) |
| tracheal wall stripe | On a chest radiograph, the linear opacity between air in the trachea and in the right upper lobe. (05 Mar 2000) |
| tympanic wall of cochlear duct | The wall that separates the cochlear duct from the scala tympani; it consists of the osseous spiral lamina and the basilar membrane. Synonym: paries tympanicus ductus cochlearis, membrana spiralis, spiral membrane. (05 Mar 2000) |
| external wall of cochlear duct | The wall that faces the outer side of the cochlea. Synonym: paries externus ductus cochlearis. (05 Mar 2000) |
| 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 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 notch of ear | A notch between the supratragic tubercle and the crus of the helix. Synonym: incisura anterior auris, anterior auricular groove, auricular notch, sulcus auriculae anterior. (05 Mar 2000) |