| LSect | longitudinal section |
|---|---|
| LSV | lateral sacral vein; left subclavian vein; longitudinal sound velocity |
| MLF | medial longitudinal fasciculus; morphine-like factor |
| MLS | mean lifespan; median life span; median longitudinal section; microphthalmia-linear skin defects [sy... |
| Mz | longitudinal magnetization |
| MLF | medial longitudinal fascicle |
|---|---|
| OPLL | of the Posterior longitudinal ligament |
| PLL | posterior longitudinal ligament |
| riMLF | rostral intersititial nucleus of the medial longitudinal fasciculus |
| longitudinal section | A section that is cut along the long axis of a structure. The opposite is a cross-section. (12 Dec 1998) |
|---|---|
| longitudinal sinus | See: inferior sagittal sinus, superior sagittal sinus. Longitudinal vertebral venous sinus, large, plexiform veins forming portions of the anterior internal vertebral venous plexus lying on the posterior surfaces of the vertebral bodies on either side of the posterior longitudinal ligament. Synonym: sinus vertebrales longitudinales. Luschka's sinus, venous sinus in the petrosquamous suture. (05 Mar 2000) |
| longitudinal studies | Studies in which variables relating to an individual or group of individuals are assessed over a period of time. (12 Dec 1998) |
| longitudinal study | <epidemiology> A study taking place over time. If individuals are followed, this is a longitudinal cohort study. If individuals are not followed, but classes (usually age classes) are restudied, this is a longitudinal cross-sectional study. The converse of a horizontal study. (05 Dec 1998) |
| longitudinal sulcus of heart | See: anterior interventricular groove, posterior interventricular groove. (05 Mar 2000) |
| longitudinal wave | <physics> Waves where the variation of the field is partially or totally in the direction of propagation (parallel to wavennumber, k [a vector]). Examples include sound waves and Langmuir waves. Contrasted with transverse waves, where the variation is perpendicular to the direction of propagation, such as light waves. (13 Nov 1997) |
| absorbable surgical suture | A surgical suture material prepared from a substance that can be digested by body tissues and is therefore not permanent; it is available in various diameters and tensile strengths, and can be treated to modify its resistance to absorption and be impregnated with antimicrobial agents. (05 Mar 2000) |
| Albert's suture | A modified Czerny suture, the first row of stitches passing through the entire thickness of the wall of the gut. (05 Mar 2000) |
| apposition suture | A suture of the skin only. Synonym: coaptation suture. (05 Mar 2000) |
| approximation suture | A suture that pulls together the deep tissues. (05 Mar 2000) |
| atraumatic suture | A suture swaged onto the end of an eyeless needle. (05 Mar 2000) |
| blanket suture | A continuous lock-stitch used to approximate the skin of a wound. (05 Mar 2000) |
| bridle suture | A suture passed through the superior rectus muscle to rotate the globe downward in eye surgery. (05 Mar 2000) |
| Bunnell's suture | A method of tenorrhaphy using a pull-out wire affixed to buttons. (05 Mar 2000) |
| buried suture | Any suture placed entirely below the surface of the skin. (05 Mar 2000) |