Oviductal structure in a viviparous New Zealand gecko, Hoplodactylus maculatus.

abstract：:Scanning electron and light microscopic studies reveal significant changes in the endometrial histophysiology of the soft-shelled turtle Lissemys punctata punctata during its seasonal reproductive cycle. Scanning electron microscopy shows the entire oviductal mucosa to be only slightly folded throughout the non-breedi...

journal_title：Journal of morphology

authors： Sarkar S,Sarkar NK,Maiti BR

更新日期：1995-04-01 00:00:00

abstract：:In the present investigation the right intracranial portion of the trochlear nerves and dorsal oblique muscle of the right ocular globe were removed from six adult dogs and analyzed by light and electron microscopy. Unmyelinated fibers were observed in the analyzed nerves. The number, diameter, area, and density of my...

journal_title：Journal of morphology

authors： Vivo J,Morales JL,Diz A,Galisteo AM,Monterde JG,Blanco A,Agüera E

更新日期：2004-12-01 00:00:00

abstract：:Salamanders possess kidneys with two distinct regions: a caudal pelvic portion and cranial genital portion. Nephrons of the pelvic region are responsible for urine formation and transport. Nephrons of the genital region transport sperm from testes to Wolffian ducts; however, nephrons of the genital region possess all ...

journal_title：Journal of morphology

authors： Hartley J,Gribbins KM,Siegel DS

更新日期：2019-10-01 00:00:00

abstract：:Studies of echinoid microscopic anatomy over the last two centuries have created a number of inaccuracies and mistakes that have accumulated in the descriptions of the intricate organization of the coelomic system of Echinoidea. To clarify the situation, we reconstructed the axial complex and radial complex of the ech...

journal_title：Journal of morphology

authors： Ezhova OV,Malakhov VV,Egorova EA

更新日期：2018-06-01 00:00:00

abstract：:Age and sex-related variations in sternum morphology may affect the thoracic injury tolerance. Male and female sternum size and shape variation was characterized for ages 0-100 from landmarks collected from 330 computed tomography scans. Homologous landmarks were analyzed using Procrustes superimposition to produce ag...

journal_title：Journal of morphology

authors： Weaver AA,Schoell SL,Nguyen CM,Lynch SK,Stitzel JD

更新日期：2014-11-01 00:00:00

abstract：:The octavolateralis area of actinopterygian fishes can be subdivided into a dorsal lateralis area composed of first-order lateral line nuclei, and a ventral octavus area composed of nuclei receiving first-order input from the eighth nerve. Three patterns of organization of the lateralis area are recognized in the pres...

journal_title：Journal of morphology

authors： McCormick CA

更新日期：1982-02-01 00:00:00

abstract：:Timed-sequence studies have shown that reticulate scales on the ventral footpads of birds do not undergo "epidermal placode" formation during their morphogenesis, but arise as symmetrical evaluations similar to the scales of snakes and lizards. Unlike the scutellate scales on the dorsal surface of the foot, in which t...

journal_title：Journal of morphology

authors： Sawyer RH,Craig KF

更新日期：1977-10-01 00:00:00

abstract：:The location and arrangement of the pancreatic endocrine tissue in larval and adult Geotria australis (Geotriidae) differ markedly from those exhibited by the comparable stages of Northern Hemisphere lampreys (Petromyzontidae). In larval Geotria australis, the main zones of islet proliferation are located laterally be...

journal_title：Journal of morphology

authors： Hilliard RW,Epple A,Potter IC

更新日期：1985-06-01 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：:Several flatfish species exhibit the unusual feature of bilateral asymmetry in prey capture kinematics. One species, Pleuronichthys verticalis, produces lateral flexion of the jaws during prey capture. This raises two questions: 1) How are asymmetrical movements generated, and 2) How could this unusual jaw mechanism h...

journal_title：Journal of morphology

authors： Gibb AC

更新日期：2003-04-01 00:00:00

abstract：:The study of the ileum of the ant Formica nigricans by light and electron microscopy revealed the existence of three differentiated regions: proximal, middle, and distal ileum. The middle region constitutes most of the length of the organ. Its wall is made up by a folded simple epithelium lined by a cuticle, which is ...

journal_title：Journal of morphology

authors： Villaro AC,Garayoa M,Lezaun MJ,Sesma P

更新日期：1999-12-01 00:00:00

abstract：:The fate and possible roles of the cytoskeleton in the process of conjugation in the hyptrich ciliate Euplotes aediculatus were investigated. Following the coalescence of the plasma membranes of the conjugant cells, a fusion zone or bridge of cytoplasm contributed by both partners is constructed. The sub-alveolar micr...

journal_title：Journal of morphology

authors： Geyer JJ,Kloetzel JA

更新日期：1987-04-01 00:00:00

abstract：:The prowfish, Zaprora silenus, is the sole member of the family Zaproridae. It is a large, relatively elongate species with a robust head and body, and it feeds primarily on jellyfishes. Although the larvae and juveniles are pelagic, the adults are demersal, and the species is widely distributed from Southern Californ...

journal_title：Journal of morphology

authors： Hilton EJ,Stevenson DE

更新日期：2013-10-01 00:00:00

abstract：:Abyssocottus korotneffi and Cottinella boulengeri are the deepest-living bottom species among freshwater teleosts. Both species have gill arches with nodulous gill-rakers equipped with sharp denticles. The gill-slit behind the fourth arch is reduced considerably and the hemibranch corresponding to this slit is absent,...

journal_title：Journal of morphology

authors： Jakubowski M

更新日期：1997-08-01 00:00:00

abstract：:A new morphological type of somatosensory organ is described. It is found in the glabrous skin of the dog nose (rhinarium or planum nasale) and situated in dermis papillae. The otherwise thick epidermis forms a thin window above the organ. There are only a few layers of keratinocytes in the window and the corneocytes ...

journal_title：Journal of morphology

authors： Elofsson R,Kröger RHH

更新日期：2020-03-01 00:00:00

abstract：:A single pair of protonephridia is the typical larval excretory organ of molluscs. Their presence in postlarval developmental stages was discovered only recently. We found that the protonephridia of the polyplacophoran mollusc, Lepidochitona corrugata, achieve their most elaborate differentiation and become largest du...

journal_title：Journal of morphology

authors： Baeumler N,Haszprunar G,Ruthensteiner B

更新日期：2011-08-01 00:00:00

abstract：:Hind foot drumming is a form of seismic signaling that plays a vital role in the communication of several Bathyergidae species. Hind foot drumming is initiated by the rapid movement of the whole hind limb by flexion and extension of the hip and knee. This study aimed to determine if morphological adaptations of the hi...

journal_title：Journal of morphology

authors： Sahd L,Bennett NC,Kotzé SH

更新日期：2020-04-01 00:00:00

abstract：:Morphologists and systematists have long suspected that dietary consistency can affect skull and dental form in mammals. We examined plasticity of skull shape and tooth morphology in prairie deer mice (Peromyscus maniculatus bairdii) by feeding mice diets that differed in consistency but not nutritional quality. Shape...

journal_title：Journal of morphology

authors： Myers P,Lundrigan BL,Gillespie BW,Zelditch ML

更新日期：1996-08-01 00:00:00

abstract：:A chromatolysis study, 14 to 21 days following denervation, showed the spinal cord representation of the nerve to the posterior latissimus dorsi muscle to be in the ventrolateral cell column between cervical ganglia 14 and 15. to characterize cevical neruos nt undergoing chromatolysis, histochemical stuies were done t...

journal_title：Journal of morphology

authors： Sansone FM,Lebeda FJ

更新日期：1975-10-01 00:00:00

abstract：:Over the past few decades, geometric morphometric methods have become increasingly popular and powerful tools to describe morphological data while over the same period artificial neural networks have had a similar rise in the classification of specimens to preconceived groups. However, there has been little research i...

journal_title：Journal of morphology

authors： Soda KJ,Slice DE,Naylor GJ

更新日期：2017-01-01 00:00:00

abstract：:Osmotically induced alterations in the ultrastructure of the apical crypts of chloride cells and changes in chloride efflux were studied in striped bass (Morone saxatilis). Striped bass were divided into three groups: fish adapted to freshwater, fish transferred directly from freshwater to 100% seawater (3% salt, w/v)...

journal_title：Journal of morphology

authors： King JAC,Hossler FE

更新日期：1991-08-01 00:00:00

abstract：:Homology is resemblance caused by a continuity of information. In biology it is a unified developmental phenomenon. Homologies among and within individuals intergrade in several ways, so historical homology cannot be separated sharply from repetitive homology. Nevertheless, the consequences of historical and repetitiv...

journal_title：Journal of morphology

authors： Van Valen LM

更新日期：1982-09-01 00:00:00

abstract：:The common snook, Centropomus undecimalis, was induced to ovulate using a time-release, GnRH analogue. Ovulation occurred the afternoon or evening the day after hormone administration. The time of ovulation was established within half an hour. At ovulation, three fish per time-group were divided into 0, 6, 12, 18 hr a...

journal_title：Journal of morphology

authors： Grier HJ,Neidig CL,Quagio-Grassiotto I

更新日期：2017-04-01 00:00:00

abstract：:The Hula Painted Frog (Latonia nigriventer) is a rare frog species endemic to the Hula Valley, Israel. The species is the sole relict of a clade that was widespread mainly in Europe from the Oligocene until the beginning of the Pleistocene. The osteological characteristics of L. nigriventer are described based on X-ra...

journal_title：Journal of morphology

authors： Biton R,Boistel R,Rabinovich R,Gafny S,Brumfeld V,Bailon S

更新日期：2016-09-01 00:00:00

abstract：:Following a study on the changes occurring in a bdelloid species (Macrotrachela quadricornifera, Rotifera, Bdelloidea) when entering anhydrobiosis, we investigated the changes in morphology, including weight and volume during the transition from the active hydrated to the dormant anhydrobiotic state by scanning electr...

journal_title：Journal of morphology

authors： Ricci C,Caprioli M,Fontaneto D,Melone G

更新日期：2008-02-01 00:00:00

abstract：:Anurans exhibit a particularly wide range of locomotor modes that result in wide variations in their skeletal structure. This article investigates the possible correlation between morphological aspects of the hylid postcranial skeleton and their different locomotor modes and habitat use. To do so, we analyzed 18 morph...

journal_title：Journal of morphology

authors： Soliz M,Tulli MJ,Abdala V

更新日期：2017-03-01 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：:Knowledge of oocyte development and the early differentiation of the germ layers in monotremes stems largely from two articles by J. P. Hill and T. Thomson Flynn. The completeness of their account was due to the large series of echidna ovaries and eggs collected on Tasmania by Flynn, an Australian biologist of whom a ...

journal_title：Journal of morphology

authors： Carter AM

更新日期：2021-01-03 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 morphogenesis and ultrastructure of the epidermis of snake embryos were studied at progressive stages of development through hatching to determine the time and modality of differentiation of the shedding complex. Scales form as symmetric epidermal bumps that become slanted and eventually very overlapped. During th...

journal_title：Journal of morphology

authors： Alibardi L

更新日期：2002-02-01 00:00:00