What's the difference between centripetal and tangential?

Centripetal


Definition:

  • (a.) Tending, or causing, to approach the center.
  • (a.) Expanding first at the base of the inflorescence, and proceeding in order towards the summit.
  • (a.) Having the radicle turned toward the axis of the fruit, as some embryos.
  • (a.) Progressing by changes from the exterior of a thing toward its center; as, the centripetal calcification of a bone.

Example Sentences:

  • (1) Abducting saccades, which were slightly hypometric, displayed a marked postsaccadic centripetal drift.
  • (2) The study shows 3 groups of AN families, centripetal (53%), centrifugal (24%) and mixed (24%), supporting a hypothesis that AN families are a heterogeneous group.
  • (3) In these subjects, the centripetal reorientation of the platelet granules, which may be early structural changes of the release reaction, failed to occur.
  • (4) The direction of the arterial blood flow in the mature animal is predominantly centrifugal, while the venous drainage is centripetal.
  • (5) The responses obtained from circular muscle originating from either the centripetal or centrifugal gyri of the ascending colon did not differ significantly.
  • (6) The regenerative phase consists of centripetal cellular regeneration, cellular repair and some residual damage.
  • (7) The mechanisms involved in the selective degeneration of centrifugal and centripetal optic fibers is discussed.
  • (8) In addition, they suggest that migration is an important aspect of the regeneration response in the free graft system and permits the myogenic population to contribute en masse to the centripetal wave of regeneration from the time it is initiated at the muscle periphery.
  • (9) In both cases the spreading involves the peripheral actin cortex and is accompanied by a continual centripetal movement of surface components--a "membrane flow"--which continues even after spreading is completed.
  • (10) The concept of centripetal and centrifugal modes constructively links the illness life cycle to the individual and family life cycles.
  • (11) Four images were retained, and were graded 0 (absence) or 1 (presence): hypodensity before injection of the contrast material, arteriolar halo after injection, progressive centripetal filling and late hyperdensity.
  • (12) Certain head and neck malignancies tend to invade branches of the cranial nerves and progress centripetally.
  • (13) These data exhibit a highly negative selection intensity and selective mortality at the lower and higher birth weights than at intermediate weights, an example of stabilizing or centripetal natural selection.
  • (14) Activated regions of caged resorufin (CR)-labeled actin in lamellipodia of IMR 90 and MC7 3T3 fibroblasts were observed to move centripetally over time.
  • (15) In immunolight microscopy, NFPs (neurofilament proteins) are confined to the centripetal domain.
  • (16) On the other hand, dendrites of starburst amacrine cells process information electrotonically with a bias towards the centrifugal direction and for a restricted range of membrane resistance values the voltage attenuation in the centripetal direction suggests that the action of these dendrites can be confined locally.
  • (17) In contrast the negativity preceded centripetal saccades by only 500 msec, and its peak amplitude was smaller (4.6 microV).
  • (18) The boot can exert continuous centripetal pressure on both sides of the calcaneus to control transverse displacement and to maintain the normal height of the heel.
  • (19) Muscularization appears to occur in a centripetal direction and is apparent in the caudate at approximately 30 weeks' gestation.
  • (20) There was one localized area of apparent centripetal accumulation of contrast medium.

Tangential


Definition:

  • (a.) Of or pertaining to a tangent; in the direction of a tangent.

Example Sentences:

  • (1) On the tangential views the inclinations of the future implants were estimated and the part of the alveolar ridge having a width less than 5 mm, which is the minimum width for housing an implant, was compiled.
  • (2) These tangential fibers are in part the preterminal arborizations of geniculocortical axons, since some of them have been shown to degenerate after geniculate lesions.
  • (3) These were not observed in area 5, although here the distribution of callosal neurons waxed and waned in the tangential cortical plane.
  • (4) In 2 patients the frontally recorded SEP component P20 was lost; in one of them the activity of mainly the tangential dipole was reduced.
  • (5) The derivatives of these cells spread out tangentially over the entire fundus of the eye in a concentric manner.
  • (6) The soft, dull, malacic appearance of the center results from lack of a true surface layer of tangential collagen fibers.
  • (7) Detection of the cysts was only possible after myelographic screening of all cases of tangential trauma.
  • (8) Tangential semithin sections of demineralized tooth germ were serially cut from the enamel surface to the enamel-dentin junction.
  • (9) The distances between the test points are reduced in tangential direction, compared to the chart.
  • (10) Parameters measured from simulator films included: (a) the perpendicular distance from the posterior tangential field edge to the posterior part of the anterior chest wall at the center of the field (CLD); (b) the maximum perpendicular distance from the posterior tangential field edge to the posterior part of the anterior chest wall (MLD); and (c) the length of lung (L) as measured at the posterior tangential field edge on the simulator film.
  • (11) One-hundred patients with anterior foot pain were examined by tangential sesamoid x-rays and some by bone scan.
  • (12) The tangential force caused massive swelling and one week later bowing of the forearm was noticed.
  • (13) The ferret callosal cell distribution has a greater tangential extent in area 18 than in area 17.
  • (14) These results suggested that AcMNPV-induced depolymerization of microtubules may be a necessary event in, rather than a tangential effect of, virus replication.
  • (15) The three-field breast set-up, in which tangential oblique opposed fields are joined to an anterior supraclavicular field, has been the method of choice for treatment of breast cancer for many years.
  • (16) This report quantifies the increase of burn survival, which we believe is associated with the use of early tangential excision and grafting as opposed to conventional therapy in adult patients with burns.
  • (17) Migration and early differentiation of neurons of the tangential vestibular nucleus of the chick take place between embryonic days 5 and 8.
  • (18) Data are acquired in the stationary mode only (no wobble motion), resulting in a transaxial spatial resolution of better than 6 mm full width at half-maximum (FWHM) at the center, which degrades to 7.5 mm tangentially and 9.6 mm radially at a radius of 20 cm.
  • (19) If the tangential velocity of the spot is constant, very large and subject-specific biases emerge in the perception of the aspect ratio.
  • (20) For the latter problem, the most employed solutions are: the inclusion of IMC in the tangential fields, the use of the direct or oblique electron beam for IMC alone.

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