(n.) A sharp appendage to any of a plant; a thorn.
(n.) A rigid and sharp projection upon any part of an animal.
(n.) One of the rigid and undivided fin rays of a fish.
(n.) The backbone, or spinal column, of an animal; -- so called from the projecting processes upon the vertebrae.
(n.) Anything resembling the spine or backbone; a ridge.
Example Sentences:
(1) Univariate and multivariate analyses indicated previous LBP or back pain in another location of the spine were strongly associated with LBP during the study year.
(2) In contrast, the ryanodine receptor is observed in dendritic shafts, but not in the spines.
(3) We reviewed the results of intraoperative monitoring of short-latency cortical evoked potentials in 81 patients who underwent surgical procedures of the cervical spine.
(4) Unrecognized flexion injuries of the cervical spine may lead to late instability and neurologic damage.
(5) The present case indicates that the possibility of osseous spines impinging on the facial nerve should be considered in all cases of facial spasm.
(6) The results of conventional sciatic nerve stretching tests are usually evaluated regardless of patient age, gender or movements of the hip joint and spine.
(7) The correlation of posterior intervertebral (facet) joint tropism (asymmetry), degenerative facet disease, and intervertebral disc disease was reviewed in a retrospective study of magnetic resonance images of the lumbar spine from 100 patients with complaints of low back pain and sciatica.
(8) Lumbosacral spine films revealed only minimal degenerative changes, while lumbar myelogram showed L4-L5 and L5-S1 ventral extradural defects.
(9) This paper presents a comparison of the diagnostic value of CT studies and conventional radiological diagnosis, based on 46 CT studies, in patients with inflammatory bone lesions of the spine (n = 20) before and after surgical interventions (n = 12).
(10) Specimens from the bone marrow taken were by trephine biopsy from the sternum, ala ossis ilii and spine.
(11) Quite the contrary, in cases of higher nervous activity disturbances, destruction of the organelles and desintegration of spine apparatuses is clearly pronounced.
(12) The left scapula in each dog was treated by open reduction and plating of the scapular spine.
(13) In general, the cerebellum showed a much delayed developmental pattern with regard to Purkinje cell spine formation.
(14) The effects exerted on the cervical spine by a traction of 150 N was studied by means of an improved radiographic technique.
(15) In the perineuronal neuropil of large pyramidal neurons (layers V-VI) there appear symmetric synapses with pyramidal cells, dendritic processes and dendritic spines.
(16) For conservative treatment of injuries of the cervical spine, two different methods are available: The HALO fixator and the collar.
(17) Whereas in flexion stress all methods showed a sufficient stability, the rotation tests proved, that in case of a dorsal instability of the lower cervical spine, posterior interlaminar wiring or anterior plate stabilization showed no reliable stabilization effect.
(18) Recommendations are made suggesting closer scrutiny of this region of the spine.
(19) Differentiation from synovial or ganglion cysts of the spine is discussed.
(20) To avoid the complications attributable to the cervical spine, we recommend roentgenographic examination in all neurofibromatosis patients who are about to have general anesthesia or skull traction for treatment of scoliosis.
Stickleback
Definition:
(v. t.) Any one of numerous species of small fishes of the genus Gasterosteus and allied genera. The back is armed with two or more sharp spines. They inhabit both salt and brackish water, and construct curious nests. Called also sticklebag, sharpling, and prickleback.
Example Sentences:
(1) Territorial sticklebacks were habituated to a male conspecific confined to a clear glass tube in a two stage experiment.
(2) The activity of the three enzymes was determined in the liver of ten-spined stickleback, a host of S. pungitii plerocercoids.
(3) Blood cells from Baltic salmon, Salmo salar, three-spined stickleback, Gasterosteus aculeatus, eel pout, Zoarces viviparus, crucian carp, Carassius carassius, African catfish, Clarias gariepinus, and reedfish, Calamoichthys calabaricus, were incubated with tritiated 11 beta-hydroxyandrostenedione (OHA) or 11-ketoandrostenedione (OA).
(4) The distribution of olfactory fibers in the brain of the three-spined stickleback was visualized by means of immunohistochemistry.
(5) At one extreme they are well developed (macrosmatic) such as in sharks and eels, and at the other they are poorly developed (microsmatic) such as in pike and stickleback.
(6) Stickleback Vg can be purified by con A-Sepharose chromatography.
(7) The costs of parental behaviour (fanning) were examined in male 1+ and 2+ three-spined sticklebacks (Gasterosteus aculeatus) by comparing the loss of wet mass incurred by starved parental males during the egg care period to those incurred by starved non-parental males during this same period.
(8) Kidney cells of the marine stickleback Spinachia have been studied with histochemical methods for the demonstration of glycoconjugates.
(9) The effect of administration of homologous prolactin on fanning behavior, an important aspect of parental care in sticklebacks and many other teleost fish, was studied.
(10) In the corpuscles of Stannius of sticklebacks and eels two cell types are described of presumably endocrine nature.
(11) These branches are only occasionally observed in the sensory epithelium of the nine-spined stickleback.
(12) Tritiated androstenedione was in vitro aromatized to estrone and estradiol by the stickleback brain.
(13) These findings suggest the existence of a physiological positive feedback within the gonadal-pituitary axis of the male stickleback when stimulated into its breeding condition by long photoperiod.
(14) The findings strongly suggest that the male sex hormone may exert a double control on the renal cells in the stickleback, at both the cytoplasmic and nucleolar levels.
(15) The results obtained demonstrate that administration of cyproterone acetate to male sticklebacks has an inhibitory effect on renal target cells, apparently indistinguishable from the changes induced by lack of male sex hormone, and that this drug may be a valid substitute for castration in fish.
(16) Thus, the three-spined stickleback and the nine-spined stickleback show considerable differences in the organization of the sensory regions of the olfactory epithelium.
(17) Gasterosteus aculeatus was the most heavily infected fish with 4 larval cestode species; for two of them (D. ditremum and S. solidus) the three-spined stickleback was found to be the required fish intermediate host.
(18) Field observations at one site on brown trout (Salmo trutta) and three-spined sticklebacks (Gasterosteus aculeatus) concurrently infected with mature Neoechinorhynchus rutili, together with the knowledge that large trout can be piscivorous in habit led to the proposition that the post-cyclic transmission of N. rutili may occur between these fish species.
(19) No significant mortality of caged stickleback fish occurred in these pools.
(20) The electrophoretic pattern of a sixth locus, mitochondrial NADP-dependent isocitrate dehydrogenase (IDH), was found to be sexually dimorphic but otherwise invariant in sticklebacks.