Development of bioluminescence and photophores in the midshipman fish, Porichthys notatus.

abstract：:The fiber constituents and connections of the calyces - the input-receiving regions - of the corpora pedunculata ("mushroom bodies") were studied in reduced silver preparations from the American cockroach, Periplaneta americana (L.). In the outer synaptic layer of the calyces five fiber classes were distinguished, the...

journal_title：Journal of morphology

authors： Weiss MJ

更新日期：1974-01-01 00:00:00

abstract：:Detailed descriptions of mammalian sperm morphology across a range of closely related taxa are rare. Most contributions have been generalized descriptions of a few distantly related mammalian species. These studies have emphasized a generalized ungulate sperm morphology, but have not underscored several important morp...

journal_title：Journal of morphology

authors： Downing Meisner A,Klaus AV,O'Leary MA

更新日期：2005-02-01 00:00:00

abstract：:The surface of a mature, pelagic C-O sole egg is composed of polygonal chambers having four to eight sides, most of which are hexagonally shaped. This honeycomb pattern initially appears on primary oocytes as a thin layer of compact, electron-dense material. Discrete thickenings begin to develop on the envelope of per...

journal_title：Journal of morphology

authors： Stehr CM,Hawkes JW

更新日期：1983-12-01 00:00:00

abstract：:An ultrastructural study of the ovary of the sessible jellyfish, Haliclystus octoradiatus, indicates that it is fundamentally different from that of other scyphozoans and is the most structurally complex within the class. Oocytes develop within a series of spherical, sac-like ovarian follicles consisting of an enlarge...

journal_title：Journal of morphology

authors： Eckelbarger KJ,Larson RJ

更新日期：1993-11-01 00:00:00

abstract：:The combined techniques of light microscopy, scanning (SEM) and transmission (TEM) electron microscopy were used for the first time to study the structure of unicameral lungs of a Tegu lizard (Tupinambis nigropunctatus). The lungs are prolate spheroid bags with blood supplied by superficial branches of a dorsal pulmon...

journal_title：Journal of morphology

authors： Klemm RD,Gatz RN,Westfall JA,Fedde MR

更新日期：1979-09-01 00:00:00

abstract：:To our knowledge, this paper presents the first description of neuroendocrine complexes in invertebrates. Neuroendocrine complexes have been identified in the lamina propria of the snail gut by light microscopy using Giemsa-stained, deplasticized sections and by electron microscopy. Silver impregnations and immunocyto...

journal_title：Journal of morphology

authors： Alba Y,Villaro AC,Sesma P,Vázquez JJ

更新日期：1989-03-01 00:00:00

abstract：:Non-innervated macrotrichia and microtrichia, thick-walled chemoreceptors and three kinds of thin-walled chemoreceptors are present on the antennal flagellum of Frenesia missa. One of the thin-walled receptors, the plate organ, is of a type not previously recorded for any insect. About four times as many plate organs ...

journal_title：Journal of morphology

authors： Slifer EH,Sekhon SS

更新日期：1971-11-01 00:00:00

abstract：:Two different patterns of wing venation are currently supposed to be present in each of the three orders of Paraneoptera. This is unlikely compared with the situation in other insects where only one pattern exists per order. We propose for all Paraneoptera a new and unique interpretation of wing venation pattern, assu...

journal_title：Journal of morphology

authors： Nel A,Prokop J,Nel P,Grandcolas P,Huang DY,Roques P,Guilbert E,Dostál O,Szwedo J

更新日期：2012-05-01 00:00:00

abstract：:The enteric nervous system consists of a number of interconnected networks of neuronal cell bodies and fibers as well as satellite cells, the enteric glia. Basic fibroblast growth factor (bFGF) is a mitogen for a variety of mesodermal and neuroectodermal-derived cells and its presence has been described in many tissue...

journal_title：Journal of morphology

authors： Chadi G,Gomide VC,Rodrigues de Souza R,Scabello RT,Maurício da Silva C

更新日期：2004-09-01 00:00:00

abstract：:Topological and histological analyses of Mabuya mabouya embryos at different developmental stages showed an extraembryonic membrane sequence as follows: a bilaminar omphalopleure and progressive mesodermal expansion around the whole yolk sac at gastrula stages; mesodermal split and formation of an exocoelom in the ent...

journal_title：Journal of morphology

authors： Jerez A,Ramírez-Pinilla MP

更新日期：2003-11-01 00:00:00

abstract：:Pheromone systems from seven species of noctuid are examined. Much of the structure of scales from the wings and/or the abdomen is interpreted as a modification for secretion or release of a pheromone. Scales with an extremely complex surface provide a large evaporation surface, while those connected to secretory cell...

journal_title：Journal of morphology

authors： Clearwater JR

更新日期：1975-05-01 00:00:00

abstract：:This investigation describes the morphogenesis of the type I pneumocyte from the neonatal stage to the age of 3 months. Cells lining subpleural air spaces were photographed from electron microscopic serial sections and a three-dimensional representation of each cell was obtained by transferring the contours of the cel...

journal_title：Journal of morphology

authors： Mercurio AR,Rhodin JA

更新日期：1984-11-01 00:00:00

abstract：:The innervation of the musculature of the tongue and the hyobranchial apparatus of caecilians has long been assumed to be simple and to exhibit little interspecific variation. A study of 14 genera representing all six families of caecilians demonstrates that general patterns of innervation by the trigeminal, facial, g...

journal_title：Journal of morphology

authors： Wake MH

更新日期：1992-04-01 00:00:00

abstract：:The fine structure of the shell and underlying mantle in young juveniles of the articulate brachiopod Terebratalia transversa has been examined by electron microscopy. The first shell produced by the mantle consists of a nonhinged protegulum that lacks concentric growth lines. The protegulum is secreted within a day a...

journal_title：Journal of morphology

authors： Stricker SA,Reed CG

更新日期：1985-03-01 00:00:00

abstract：:The king-of-the-salmon, Trachipterus altivelis (Lampriformes), has an unusual set of oral jaws which allow it the ability to protrude the entire upper jaw, containing the premaxilla and the maxilla bones, to extreme distances. Here, we provide a short description of the cranial anatomy and mechanism of jaw protrusion ...

journal_title：Journal of morphology

authors： Ferry LA,Paig-Tran EW,Summers AP,Liem KF

更新日期：2019-12-01 00:00:00

abstract：:Analysis of lateral and dorsoventral radiographic films shows that ingestion, transport, and mastication in Pedetes capensis (Rodentia) are cyclic and their movement patterns are essentially similar for the three food types offered. During the ingestion cycle, closing of the mouth is accompanied by a backward translat...

journal_title：Journal of morphology

authors： Offermans M,de Vree F

更新日期：1990-09-01 00:00:00

abstract：:The structure of the nephron in the ranid frog, Rana cancrivora, was studied by light and electron microscopy. This frog is the only amphibian species to live in mangrove swamps of very high salinity. The nephron consists of the following parts: renal corpuscle, ciliated neck segment, proximal tubule, ciliated interme...

journal_title：Journal of morphology

authors： Uchiyama M,Murakami T,Yoshizawa H,Wakasugi C

更新日期：1990-05-01 00:00:00

abstract：:Ultrastructural studies of spermiogenesis and sperm morphology have found many characters that are likely to provide clues to the phylogeny of the Platyhelminthes. However, the lack of information on many free-living groups has been a limiting factor. There is a single description of the spermatogenesis and spermatozo...

journal_title：Journal of morphology

authors： Ponce de León R,Volonterio O

更新日期：2018-05-01 00:00:00

abstract：:The sharpness and thus information content of the retinal image in the eye depends on the optical quality of the lens and its accurate positioning in the eye. Multifocal lenses create well-focused color images and are present in the eyes of all vertebrate groups studied to date (mammals, reptiles including birds, amph...

journal_title：Journal of morphology

authors： Gustafsson OS,Ekström P,Kröger RH

更新日期：2010-08-01 00:00:00

abstract：:Two of the forearm flexors of the horse, the superficial and deep digital flexor muscles, are critical to support the digital and fetlock joints, exhibit differing insertions, and are passively supported by the proximal and distal check ligaments, respectively. These two muscles differ in histochemical composition and...

journal_title：Journal of morphology

authors： Hermanson JW,Cobb MA

更新日期：1992-06-01 00:00:00

abstract：:The ventral surface of the most proximal tarsomere of each mesothoracic leg of the female black fly, Simulium venustum Say, bears approximately 60 bifurcate sensilla. Externally, a sensillum appears as a hair set into an asymmetric socket and with the distal tip flattened into two flared lobes. A single pore opens int...

journal_title：Journal of morphology

authors： McIver S,Siemicki R,Sutcliffe J

更新日期：1980-07-01 00:00:00

abstract：:The medaka, Oryzias latipes, is a model organism in experimental biology. Its ontogeny and osteology have been studied frequently, but no detailed description of its cranial anatomy exists. Based on manual dissections, histological slide sections, and 3D-reconstructions, we describe the anatomy of the jaw apparatus of...

journal_title：Journal of morphology

authors： Werneburg I,Hertwig ST

更新日期：2009-09-01 00:00:00

abstract：:The study of semithin (1 μ in thickness) and thin sections of Epon-embedded material reveals that Malpighian tubules of Formica polyctena are composed of a single cellular type throughout their length. No differentiated regions were observed. Ultrastructural traits of the epithelial cells are those of highly metabolic...

journal_title：Journal of morphology

authors： Garayoa M,Villaro AC,Montuenga L,Sesma P

更新日期：1992-11-01 00:00:00

abstract：:After placing in vitro, central subgerminal ooplasm (containing a central nucleus of Pander) from a quail germ disc of a prelaid egg (before symmetrization) on the upper layer of an isolated chicken antisickle, we observed the induction of a radially oriented preneural plate (without interference of chordamesoblast). ...

journal_title：Journal of morphology

authors： Callebaut M,Van Nueten E,Harrisson F,Bortier H

更新日期：2004-05-01 00:00:00

abstract：:Burrow construction in the subterranean Ctenomys talarum (Rodentia: Ctenomyidae) primarily occurs by scratch-digging. In this study, we compared the limbs of an ontogenetic series of C. talarum to identify variation in bony elements related to fossorial habits using a morphometrical and biomechanical approach. Diamete...

journal_title：Journal of morphology

authors： Echeverría AI,Becerra F,Vassallo AI

更新日期：2014-08-01 00:00:00

abstract：:Morphology is strongly correlated with trophic mode in marine invertebrate larvae. We asked if larval morphogenesis is influenced by adelphophagy, a trophic mode in which larvae are provisioned with additional yolk in the form of extra-embryonic nurse eggs, instead of the more common increase in egg size. We used hist...

journal_title：Journal of morphology

authors： Gibson G,Carver D

更新日期：2013-01-01 00:00:00

abstract：:Sexual dimorphism in the distribution of antennal sense organs is common among adults of the genus Periplaneta. In three out of the four strains of Periplaneta americana examined, adult males had more contact chemoreceptros than females. In the fourth strain of P. americana and in P. australasiae, P. brunnea, P. fulig...

journal_title：Journal of morphology

authors： Schafer R,Sanchez TV

更新日期：1976-06-01 00:00:00

abstract：:The hypochord of the zebrafish embryo (Danio rerio) emerges at the 9-somite stage as a single row of cells in the dorsomedial endoderm immediately ventral to the notochord. It is recognizable from the 2(nd) or 3(rd) somite and extends along the trunk to the same extent as the somites. A basal lamina surrounds the hypo...

journal_title：Journal of morphology

authors： Eriksson J,Löfberg J

更新日期：2000-06-01 00:00:00

abstract：:Light and electron microscopic techniques show that the eye of the marine prosobranch gastropod, Ilyanassa obsoleta, is composed of an optic cavity, lens, cornea, retina, and neuropile, and is surrounded by a connective tissue capsule. The adult retina is a columnar epithelium containing three morphologically distinct...

journal_title：Journal of morphology

authors： Gibsonm BL

更新日期：1984-08-01 00:00:00

abstract：:High speed cinematography was used to record the feeding activities of terrestrial Ambystoma tigrinum melanostictum. A description of these activities based on films of more than 50 feeding sequences is presented, and the mechanical units involved are defined, described, and functionally analyzed. Evolutionary implica...

journal_title：Journal of morphology

authors： Larsen JH Jr,Guthrie DJ

更新日期：1975-10-01 00:00:00