What's the difference between dorsal and dorsum?

Dorsal


Definition:

  • (a.) Pertaining to, or situated near, the back, or dorsum, of an animal or of one of its parts; notal; tergal; neural; as, the dorsal fin of a fish; the dorsal artery of the tongue; -- opposed to ventral.
  • (a.) Pertaining to the surface naturally inferior, as of a leaf.
  • (a.) Pertaining to the surface naturally superior, as of a creeping hepatic moss.
  • (a.) A hanging, usually of rich stuff, at the back of a throne, or of an altar, or in any similar position.

Example Sentences:

  • (1) Two small populations of GLY + neurons were observed outside of the named nuclei of the SOC; one was located dorsal to the LSO, near its dorsal hilus, and the other was identified near the medial pole of the LSO.
  • (2) It is concluded that in the mouse model the ability of buspirone to reduce the aversive response to a brightly illuminated area may reflect an anxiolytic action, that the dorsal raphe nucleus may be an important locus of action, and that the effects of buspirone may reflect an interaction at 5-hydroxytryptamine receptors.
  • (3) An opening wedge osteotomy is then directed posterior-dorsal to anterior-plantar, to effectively plantarflex the posterior aspect of the calcaneus.
  • (4) Rapid injection of 2 m Ci TC 99m into a dorsal vein of the foot produced isotope phlebograms with a Dyna camera 2 C.
  • (5) Using a monoclonal antibody against dopamine and a rabbit antiserum against serotonin, 5-methoxytryptamine or tryptamine, we were able to achieve the simultaneous localization of two amines in glutaraldehyde-fixed sections of rat dorsal raphe nuclei.
  • (6) While the heaviest anterogradely labeled ascending projections were observed to the contralateral ventral posterolateral nucleus of the thalamus, pars oralis (VPLo), efferent projections were also observed to the contralateral ventrolateral thalamic nucleus (VLc) and central lateral (CL) nucleus of the thalamic intralaminar complex, magnocellular (and to a lesser extent parvicellular) red nucleus, nucleus of Darkschewitsch, zona incerta, nucleus of the posterior commissure, lateral intermediate layer and deep layer of the superior colliculus, dorsolateral periaqueductal gray, contralateral nucleus reticularis tegmenti pontis and basilar pontine nuclei (especially dorsal and peduncular), and dorsal (DAO) and medial (MAO) accessory olivary nuclei, ipsilateral lateral (external) cuneate nucleus (LCN) and lateral reticular nucleus (LRN), and to a lesser extent the caudal medial vestibular nucleus (MVN) and caudal nucleus prepositus hypoglossi (NPH), and dorsal medullary raphe.
  • (7) The pattern of results is consistent with a role for the dorsal bundle in attentional processes but appears to contradict the predictions required if the dorsal bundle were to have a role in frustrative nonreward.
  • (8) The Ca2+ channel current recorded under identical conditions in rat dorsal root ganglion neurones was less sensitive to blockade by PCP (IC50, 90 microM).
  • (9) Rats were injected subcutaneously with 10 ml of air into the dorsal skin to make an air-pouch and with 2 ml of antiserum at an appropriate dilution for passive sensitization, and then 5 ml of air was removed.
  • (10) Conservatively treated compressed fractures of the distal radius dorsal metaphysis healed despite primarily good reduction and consequent treatment with a decrease in dorsal length.
  • (11) One month after unilateral transection of the fimbria-fornix an almost complete lack of cholinergic fibers persists in all layers of the dorsal hippocampus and fascia dentata ipsilateral to the lesion when compared to the contralateral hippocampus or to unlesioned control rats.
  • (12) Three animals received unilateral lesions which included both the inferior parietal lobule and a portion of adjacent dorsal prestriate cortex (IPL-PS).
  • (13) We have characterized previously a model of herpes simplex virus (HSV) infection of rat dorsal root ganglia (DRG) following cutaneous infection.
  • (14) After intravenous or dorsal lymph sac injections of 3H-22:6, most of the retinal label was seen in rod photoreceptor cells.
  • (15) Spinal cord stimulation would suppress at least the dorsal horn neurons which were destroyed by various kinds of diseases.
  • (16) This study presents data supporting a selective antinociceptive role for DA at the spinal level, where it has a widespread antinociceptive influence, on cells in both the superficial and deeper dorsal horn.
  • (17) The first spinal nerve and the spinal accessory nerve (XI) have no sensory projections, but the second spinal nerve has typical projections along the dorsal funiculus of the spinal cord.
  • (18) Neurons containing moderate to high concentrations of ChE reaction product were found in 3 distinct regions of the dorsal thalamus.
  • (19) Dorsal root ganglion (DRG) neurons cultured from neonatal rats contained high concentrations of protein kinase C (PKC).
  • (20) Stimulating the dorsal root at L5 was found to produce hindleg twitches in EAE rats with complete hindlimb paralysis.

Dorsum


Definition:

  • (n.) The ridge of a hill.
  • (n.) The back or dorsal region of an animal; the upper side of an appendage or part; as, the dorsum of the tongue.

Example Sentences:

  • (1) Lactobacilli were found in saliva, on teeth, and on the dorsum of the tongue, the vestibular mucosa, and the hard palate in humans.
  • (2) The condition usually discovered on routine clinical examination, appearing as an asymptomatic, ulcer-like region on the dorsum of the tongue.
  • (3) Pain on injection was the only noteworthy complication, particularly when propofol was injected via a small vein in the dorsum of the hand.
  • (4) Fourteen men with deep dermal burns of the dorsum of the hand treated by early excision and primary skin grafting are presented.
  • (5) Dorsum of tongue had the highest density of LC per mm epithelial surface length (28.3 cells per mm) which was significantly greater (P less than 0.05) than buccal mucosa (25.2) which in turn had significantly more cells (P less than 0.05) than lip (22.4).
  • (6) A teflon coated-aluminum chamber was implanted in the dorsum skin of animals.
  • (7) A previously healthy 47-year-old woman presented to the emergency department with septic shock five days after a small dog bite on the dorsum of her hand.
  • (8) The evoked spinal electrogram (SEG) in man was recorded from the epidural space, applying the technique of continuous epidural block, and compared with cord dorsum potential (CDP) in wakeful rabbits.
  • (9) In floor of mouth, lip, lateral border and dorsum of tongue the cells were found along the length of the epithelium.
  • (10) It was suggested that the dorsum of the tongue may function as a nidus for periodontopathic micro-organisms.
  • (11) Based on 25 years of experience (1960-1984) with 188 cases, six approaches to thumb reconstruction are categorized as follows: pollicization using the index finger; pollicization using a finger stump; free transplant of a toe to reconstruct the thumb; reconstruction of the thumb by bone grafting and free flap transfer from the great toe with the nail; reconstruction of the thumb by turning up the skin over the dorsum of the stump and lengthening with bone grafting, and reconstruction of the thumb with bone grafting and tubular skin grafting.
  • (12) A 62-year-old white woman was seen initially with a 4-month history of swelling over the dorsum of her wrist and thumb pain at the basal joint.
  • (13) Animals received three consecutive daily applications of various concentrations of the test chemical on the dorsum of both ears.
  • (14) Craniogram demonstrated deep sella of slightly increased volume and unaltered dorsum sellae.
  • (15) Tests (1) and (2) were applied to the dorsum of the hand and foot and test (3) to the pulp of the fingertip and toe.
  • (16) The tumor promoter dissolved in a 0.8% sodium carboxymethyl cellulose solution was injected into a subcutaneous air pouch preformed on the dorsum of rats.
  • (17) A case of cryptococcosis in a guinea pig with lesions confined to the dorsum of the nose is described.
  • (18) Scarring of the dorsum of the hand is described, often severe and apparently permanent.
  • (19) An allergic inflammation was induced in the preformed air pouch in the dorsum of the sensitized rats by injecting the antigen dissolved in a 2% sodium carboxymethyl cellulose solution into the air pouch.
  • (20) The most important reason for the resorption are mechanical factors; this has been shown by comparing the load of implanted tissue on the columella and on the dorsum of the nose.

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