What's the difference between distal and mesial?

Distal


Definition:

  • (a.) Remote from the point of attachment or origin; as, the distal end of a bone or muscle
  • (a.) Pertaining to that which is distal; as, the distal tuberosities of a bone.

Example Sentences:

  • (1) Local embolism, vertebral distal-stump embolism, the dynamics of hemorrhagic infarction and embolus-in-transit are briefly described.
  • (2) Muscle weakness and atrophy were most marked in the distal parts of the legs, especially in the gastrocnemius and soleus muscles, and then spread to the thighs and gluteal muscles.
  • (3) We report a series of experiments designed to determine if agents and conditions that have been reported to alter sodium reabsorption, Na-K-ATPase activity or cellular structure in the rat distal nephron might also regulate the density or affinity of binding of 3H-metolazone to the putative thiazide receptor in the distal nephron.
  • (4) The method is based on two-dimensional scanning photon absorptiometry on the distal part of the forearm.
  • (5) At the same time the duodenum can be isolated from the stomach and maintained under constant stimulus by a continual infusion at regulated pressure, volume and temperature into the distal cannula.
  • (6) From 1978 to 1983 in the Orthopedic University Clinic (Oskar-Helene-Heim, Berlin) 75 children with fractures of the distal humerus received medical treatment.
  • (7) Investigations showed that compliance is reduced in a distal to proximal direction.
  • (8) In case of isolated damage of deep flexor tendon of the II-V fingers at the level of the I zone there were made palliative operations of 12 fingers: tenodesis and arthrodesis of distal interphalangeal articulation in functionally advantageous position.
  • (9) 16 tube (usually a Baker tube) was inserted by gastrostomy and advanced distally into the colon.
  • (10) SPRs were elicited either by stimulating the reticular formation or the distal end of the median nerve.
  • (11) Conservatively treated compressed fractures of the distal radius dorsal metaphysis healed despite primarily good reduction and consequent treatment with a decrease in dorsal length.
  • (12) In conclusion, the ability of distal tubules to establish a significant pH gradient will contribute to the titration of non bicarbonate buffers, i.e., to titratable acid formation.
  • (13) A distally based posterior tibial artery adipofascial flap with skin graft was used for the reconstruction of soft tissue defects over the Achilles tendon in three cases and over the heel in three cases.
  • (14) In the case with a more distally situated VSD, the bundle branches skirted the anterior and distal walls of the defect.
  • (15) There is approximately a 25% decrease in aggregation from regions of the rib distal to the metaphyseal-growth plate junction (69%) to the region proximal to it (50%).
  • (16) The diagnosis of an arterial injury may be readily apparent, but the excellent upper-extremity collateral circulation may create palpable distal pulses despite a significant proximal arterial injury.
  • (17) The NAD-dependent enzymes (except alpha-GPDH) showed a stronger reactivity in the proximal tubules, while the NADP-dependent ones were more reactive in the thick limb of Henle's loop and distal convoluted tubules.
  • (18) Data from cases with myocardial bridges show that both fatty streaks and raised lesions are seldom observed in the region distal to myocardial bridge.
  • (19) Our results show that stenosis of about one-third of the original external diameter of the artery and vein of the pedicle in our model did not have any significant influence on the survival of the flap and ligation of the femoral artery distal to the branch to the flap did not produce any statistical difference in the viability of the flap.
  • (20) Seventy-five hands showed normal distal latency, in which cases, however, the SNCV of the ring finger was always outside the normal range, while the SNCVs of the thumb, index and middle fingers were abnormal in 64%, 80% and 92% of cases respectively.

Mesial


Definition:

  • (a.) Middle; median; in, or in the region of, the mesial plane; internal; -- opposed to lateral.

Example Sentences:

  • (1) Thus, in approximately 80% of seizures, the onset of ictal EEG changes resided in the mesial temporal structures.
  • (2) Possible mesial root extrusion was found in 60.0% of the uprighted molars.
  • (3) The vertical distances were compared with measurements taken from periapical radiographs between the apex of each mesial root and the superior border of the mandibular canal prior to sectioning.
  • (4) Ablations of the entire dorsal convexity, and of the mesial and cingulate regions of the cortex, failed to interfere with the spindle bursts and recruiting responses, whereas ablations confined to the orbital cortex alone abolished completely these potentials in the cortex and thalamus.
  • (5) In both experimental systems the movement was derived largely from a mesial drift of the third molar, and its rate decreased with time.
  • (6) The mesial movement was achieved with rubber band pull.
  • (7) However, among 27 patients examined by means of intracranial EEG recordings, it was evident that a disgust expression occurred with oro-alimentary automatisms at the beginning of mesial temporal lobe seizures, whereas a happy one occurred without oro-alimentary automatisms at the beginning of lateral temporal lobe seizures.
  • (8) Alveolar bone resorption was measured on enlarged cephalographs (5.7 X) at a point mesial to the mandibular first molar.
  • (9) The "C" was open anteriorly and the lateral arm extended almost twice as far incisally as the mesial arm.
  • (10) Intra- and inter-hemispheric propagation of ictal discharges was analyzed with computer techniques in 10 patients with complex partial seizures of mesial temporal lobe origin in whom depth electrodes had been stereotaxically implanted.
  • (11) We measured local cerebral metabolic rates for glucose in mesial and lateral temporal structures and compared them with metabolic rates for analogous regions in 16 healthy normal volunteers and the contralateral hemisphere of the epileptic patients.
  • (12) The risk of resorption also will increase with a more mesial horizontal path of eruption.
  • (13) They can be summarized as: mesial shifting of the maxilla, dimensional increase of the mandibular body, ovoidal upper arch with a deeper palatal vault, tapering or trapezoidal lower arch.
  • (14) N140 and P190 (the "vertex potentials") are probably generated bilaterally in the frontal lobes, including orbito-frontal, lateral and mesial (supplementary motor area) cortex.
  • (15) Propagation of paroxysmal activity through the anterior ventral thalamic nuclei and cingulate gyri was observed in all cases with temporal or frontal mesial focus.
  • (16) These included torn or frayed menisci and those which were displaced, usually in a mesial direction.
  • (17) Future studies in non-human primates may reveal that ictal discharges which originate in the mesial temporal region propagate preferentially via brain-stem pathways to contralateral homologous regions.
  • (18) Electrode tips recording beta rhythms were found: (i) in motor areas 4 gamma and 6a beta, in a band extending from the postcruciate cortex to the walls of the presylvian sulcus, crossing the frontal pole (anterior beta focus); (ii) in the posterior parietal associative area 5a, along the divisions of the ansate sulcus, extending to the mesial aspect of the hemispheres (posterior beta focus).
  • (19) Finally polynomes of 4th degree were chosen to describe the anterior dental arch from 6 mesial to mesial 6 of the arcogram.
  • (20) The results suggested that effective distal and intrusive movements would be expected by bending the outer-bow downward, since this procedure would prevent the tooth from tipping mesially.