(n.) An eel-like marsipobranch of the genus Petromyzon, and allied genera. The lampreys have a round, sucking mouth, without jaws, but set with numerous minute teeth, and one to three larger teeth on the palate (see Illust. of Cyclostomi). There are seven small branchial openings on each side.
Example Sentences:
(1) The buccal glands of adults of the Southern Hemisphere lamprey Geotria australis consist of a pair of small, bean-shaped, hollow sacs, embedded within the basilaris muscle in the region below the eyes and to either side of the piston cartilage.
(2) The presence in lamprey kidney of a loop which is similar to Henle's loop in mammals and birds indicates that the development of the system of osmotic concentration conditioned by the formation in the kidney of the medulla and from a sharp increase in renal arterial blood supply.
(3) However, the granulocytes of fishes, studied thus far, show granules with only one type of inclusion, whereas in lamprey the granulocyte inclusions are variable in size and shape.
(4) The terminal of the lamprey was nakedly situated on the ventral surface, while that of the hagfish was always covered by the superficial glial layer.
(5) In addition teeth from adult lamprey were successfully cultured in vitro.
(6) Swimming in the lamprey is accomplished by the generation of a travelling wave of body curvature in which the phase coupling between segments is so controlled as to give approximately one full wavelength on the body at any swimming speed.
(7) In lampreys, the majority of HRP-labeled cells were located along the length of the brainstem reticular formation in the inferior, middle, and superior reticular nuclei of the medulla, mesencephalic tegmentum, and nucleus of the medial longitudinal fasciculus.
(8) Immunoreactivity of antisera directed against human neuropeptide Y (NPY), anglerfish polypeptide YG (aPY), bovine pancreatic polypeptide (bPP), salmon pancreatic polypeptide (sPP), porcine peptide tyrosine tyrosine (PYY), and salmon glucagon-like peptide (GLP) was investigated in the endocrine pancreas and anterior intestine of adult lampreys, Petromyzon marinus, by immunohistochemical analysis.
(9) The hemeproteins included human methemoglobin A, lamprey methemoglobin, metchlorocruorin, horse metmyoglobin, and horseradish peroxidase.
(10) In the lamprey only, weakly blue-green fluorescent subependymal cells were seen just beneath the central canal.
(11) Primary lateralis projections in silver lampreys, Ichthyomyzon unicuspis, and young adult sea lampreys, Petromyzon marinus, were examined utilizing silver impregnation of degenerating fibers and transganglionic transport of horseradish peroxidase.
(12) Intracellular recordings were made from 76 neurons belonging to various cell types in the lamprey spinal cord, and these neurons were subsequently stained with Lucifer yellow.
(13) The presumed lack of gonadotropin-releasing hormone in the nervus terminalis of lampreys is discussed.
(14) The structure and fine structure of the pituitary gland in the sea lamprey, Petromyzon marinus L., are described at all major stages in the life cycle.
(15) The results suggest that the lamprey spinal cord has several fiber systems containing peptides sharing immunogenic properties with mammalian neuropeptides.
(16) Antibodies against myelin proteins were utilized in the analysis of total particulate material from the brains of the agnathan hagfish and lamprey.
(17) A similar distribution of opioid binding sites was seen in the eel and lamprey brain.
(18) Fragments that consisted mainly of two polysaccharide chains joined by a short polypeptide bridge (doublets) were prepared from chondroitin sulphate-proteins of lamprey, sturgeon, elasmobranch and ox connective tissues after hydrolysis with trypsin and chymotrypsin.
(19) The presence of elastic-like fibers and elastin-like material within some lamprey cartilages implies that this protein may have evolved earlier in vertebrate history than has been previously suggested.
(20) Some immunological relatedness between the hagfish enzyme and the enzyme from lamprey or skate was demonstrated.
Pisces
Definition:
(n. pl.) The twelfth sign of the zodiac, marked / in almanacs.
(n. pl.) A zodiacal constellation, including the first point of Aries, which is the vernal equinoctial point; the Fish.
(n. pl.) The class of Vertebrata that includes the fishes. The principal divisions are Elasmobranchii, Ganoidei, and Teleostei.
Example Sentences:
(1) He is Taurus and I'm Pisces; my dad was Pisces and my mum was Taurus.
(2) McMurdo Sound, Antarctica, is suited for the study of the effects of eutrophication on diet-related parasites of Trematomus bernacchii (Boulenger, 1902) (Pisces).
(3) Studies were conducted to explore vitamin A transport in the non-mammalian vertebrates, especially Pisces, Amphibia, and Reptilia, and to isolate and partially characterize piscine retinol-binding protein.
(4) Ectoplasmic specializations (ES) facing spermatids were studied in species representative of four classes of non-mammalian vertebrates (Pisces--bluegill; Amphibia--bullfrog; Reptilia--red eared turtle; Aves--domestic chicken).
(5) Goldfish, Carassius auratus auratus L. (Pisces, Cyprinidae), were trained by different kinds of training procedures under the influence of cycloheximide or puromycin, two inhibitors of the protein biosynthesis.
(6) Immunocytochemical and cytofluorimetric studies were performed in several species of different classes (Pisces, Amphibia, Reptilia and Aves), in order to ascertain the presence of ACTH-like molecules in blood cells.
(7) The PISCES study is not the first to inject stem cells as such into patients' brains; the distinction is that it is using neural stem cells.
(8) Fracture of the epidural lead (Pisces Quad 3487) is documented in four out of eight patients with an implanted Itrel pacing system for treatment of peripheral vascular disease.
(9) Serum or plasma from 25 species of verebrates, from the mammalian orders Primates, Artiodactyla, Perissodactyla, Carnivora, and Rodentia and from the classes Aves, Amphibia, and Pisces, were assayed.
(10) The acute toxicity of some pesticides used in Tunisia is determined for the species Aphanius fasciatus (Pisces - Cyprinodontidae).
(11) IgM-like immunoglobulin fractions have been isolated by combinations of precipitation procedures and gel-filtration from the serum of three vertebrate species, representative of the classes of Pisces (Cyprinus carpio L.), Amphibia (Rana ridibunda Pall.)
(12) Proteins having similar MWs and isoelectric points as the human or monkey (primates) proteins were not observed in cultured cells of the following species: aves, bat, dog, dolphin, goat, hamster, mink, mouse, pisces, potoroo, rabbit and rat.
(13) Maturation in Xiphophorus maculatus (Pisces; Poeciliidae) is under control of the sex-linked P gene.
(14) The morphogenesis of the "hypertrophied" mormyrid cerebellum was investigated in Pollimyrus (Pisces).
(15) Only the most negativistic sign of Pisces was significantly associated with suicide ideation.
(16) The chromosomes of five species of Pisces, viz common carp, chub, tench, grass carp and catfish, were investigated.
(17) However, the short-time constants in Pisces were larger (therefore providing a slower response) than those in other vertebrates, and were similar to that of the turtle and the mud puppy.
(18) Morphometric measurements were made from serial sections of the vestibular system in four classes of vertebrates: Reptilia, Aves, Amphibia, and Pisces.
(19) There was no help from PLIT-fusion but pain decreased substantially by spinal cord stimulation with a PISCES-system.
(20) The sex-determining mechanism of swordtails (Xiphophorus, Poeciliidae, Pisces) is poorly understood, because many laboratory strains of these species are characterized by biased sex ratios in either the male or female direction.