Abstract:
:Newly metamorphosed Kenyan reed frogs, Hyperolius viridiflavus ferniquei, are able to regenerate amputated digits. The terminal digital pad is also completely reformed. Differentiation of the regenerating digital pad was studied by scanning electron microscopy. External differentiation of the digital pad began late in the second postamputational week with the appearance of small patches of specialized epidermal cells on the ventral surface of the regenerating digit. The differentiation of the pad spread out radially until late in the fourth week, when its overall shape approximated that of the normal digital pad. The appearance of patches of digital pad epidermis on the ends of spike regenerates arising from the forearm was also confirmed.
journal_name
J Morpholjournal_title
Journal of morphologyauthors
Richards CM,Carlson BM,Connelly TG,Rogers SL,Ashcraft Edoi
10.1002/jmor.1051530305subject
Has Abstractpub_date
1977-09-01 00:00:00pages
387-395issue
3eissn
0362-2525issn
1097-4687journal_volume
153pub_type
杂志文章abstract::The tectorial structures of the inner ear of the proteid salamander Proteus anguinus were studied with transmission and scanning electron microscopy in order to analyze the ultrastructure of the otoconial membranes and otoconial masses of the maculae and the tectorial membrane of the papilla amphibiorum. Both otoconia...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.1052010106
更新日期:1989-07-01 00:00:00
abstract::The interradicular periodontal ligament of mandibular molars contains an apparently unique dilated vessel straddling the interradicular alveolar bone. This structure is designated a venous ampulla. The vessel possesses a luminal length and width of approximately 200 X 100 microns, respectively. Ultrastructurally, the ...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.1051910303
更新日期:1987-03-01 00:00:00
abstract::The morphology of 16 occipital spines of the xenacanthid Orthacanthus from Upper Carboniferous deposits of Robinson (Kansas, USA), Nýran (Czech Republic) and Puertollano (Spain) is described. The nonreplaced spines reveal the growth pattern of the shark. Moreover, the relationship between growth and paleoenvironmental...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4687(199910)242:1<1::AID-JMOR2>
更新日期:1999-10-01 00:00:00
abstract::For better understanding of the links between limb morphology and the metabolic cost of locomotion, we have characterized the relationships between limb length and shape and other functionally important variables in the straightened forelimbs and hindlimbs of a sample of 12 domestic dogs (Canis familiaris). Intra-anim...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4687(199711)234:2<183::AID-JMOR
更新日期:1997-11-01 00:00:00
abstract::The cat hindlimb contains several long, biarticular strap muscles composed of parallel muscle fascicles that attach to short tendons. Three of these muscles--sartorius, tenuissimus, and semitendinosus--were studied by dissecting individual gold-stained fibers and determining the surface distribution of acetylcholinest...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.1051910102
更新日期:1987-01-01 00:00:00
abstract::The development of diet-induced phenotypic differences in numbers of sensilla on the antennae of the grasshopper Schistocerca americana was studied using the exuviae produced at each molt. This made it possible to follow changes within an individual insect. In the first instar, insects had similar numbers of four sens...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.10026
更新日期:2002-11-01 00:00:00
abstract::The larval development of "conchostracans" has received only scattered attention. Here I present the results of a study on the larval (naupliar) development and the metamorphosis of Lynceus brachyurus, a member of the bivalved branchiopod order the Laevicaudata. Lynceus brachyurus is the only species of the "Conchostr...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.10202
更新日期:2005-05-01 00:00:00
abstract::The form of amniote claws has been extensively investigated, often with inferences about ecological association being drawn from studies of their geometry. Various methods have been used to quantify differences in the geometry of claws, but rarely have the underlying assumptions of such methods been addressed. Here, w...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.20625
更新日期:2017-02-01 00:00:00
abstract::The morphology and probable evolution of the depressor muscles of the lower jaw, innervated by the seventh cranial nerve (VII;M. Ceratomandibularis, M. Depressor Mandibulae), in larval, neotenic, and metamorphosed Urodela were investigated. Observations on innervation and skeletal connections of the muscles were inclu...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4687(199707)233:1<77::AID-JMOR7
更新日期:1997-07-01 00:00:00
abstract::Descriptions are provided of the histology and ultrastructure of the male internal reproductive tracts from three species of Camponotus, representing three subgenera. This study is the first to provide ultrastructural information on the testes (including spermatogenesis and spermiogenesis), seminal vesicles, and acces...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.1052110308
更新日期:1992-03-01 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
pub_type: 杂志文章
doi:10.1002/jmor.21110
更新日期:2020-04-01 00:00:00
abstract::Nematocytes containing microbasic mastigophores are intimately associated with accessory cells in the epidermis of Chironex fleckeri. Large microbasic mastigophores may be surrounded by seven to nine such cells. Each accessory cell possesses an apical portion containing secretory droplets and a basal portion which car...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.1051950110
更新日期:1988-01-01 00:00:00
abstract::Bioluminescent organs have evolved many times within teleost fishes and exhibit a wide range of complexity and anatomical derivation. Although some bioluminescent organs have been studied in detail, the morphology of the bacterial light organs in glowbellies (Acropoma) is largely unknown. This study describes the anat...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.20894
更新日期:2018-11-01 00:00:00
abstract::Large pinnae are characteristic of the Leporids, and the pinna is known to have a thermoregulatory role. Another role has been hypothesized for the pinna of Lepus spp., as a part of a suspensory system for the greater portion of the head, absorbing shock that might otherwise interfere with vision during high-speed loc...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.10825
更新日期:2010-06-01 00:00:00
abstract::Although the overall pattern and timing of gonadal sex differentiation have been established in a considerable number of teleosts, the ultrastructure of early stages of gonadal development is not well documented. In this study, gonads from larval and juvenile stages of laboratory-reared Cichlasoma dimerus were examine...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.10329
更新日期:2005-05-01 00:00:00
abstract::The latest research on direct developing caecilian and anuran species indicate presence of only one generation of taste organs during their ontogeny. This is distinct from indirect developing batrachians studied thus far, which possess taste buds in larvae and anatomically distinct taste discs in metamorphs. This stud...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.20544
更新日期:2016-07-01 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
pub_type: 杂志文章
doi:10.1002/jmor.1052040204
更新日期:1990-05-01 00:00:00
abstract::The spinotectal somatosensory projection was compared in normal, genetically eyeless, and embryonically manipulated salamanders. In normal animals, serotonin fluorescence was restricted to the intermediate tectalneuropil. This same region showed both high levels of serotonin uptake and somatosensory single unit electr...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.1051700105
更新日期:1981-10-01 00:00:00
abstract::Atretic follicles of the ovary of the Indian pied myna (Sturnus contra contra) were studied in birds collected each month throughout the year. Histological examination included histochemical techniques for 3β-hydroxy-steroid dehydrogenase (3β-HSDH) and for lipids. Atretic follicles were mainly of two types: nonburstin...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.1051900305
更新日期:1986-12-01 00:00:00
abstract::Slender blindsnakes (Leptotyphlopidae) are known to use a unique feeding mechanism that involves rapid flexions of the tooth-bearing lower jaw. However, the morphology of the leptotyphlopid jaw apparatus has remained poorly studied due to the extremely small size of these snakes. Here I present a detailed description ...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.10414
更新日期:2006-04-01 00:00:00
abstract::Scanning electron microscopy of postnatally developing gerbil vagina (birth to maturity) shows that longitudinal folds form prior to transverse folds; the process of fold formation is initiated on the dorsal wall and proceeds ventrally. From days 1 to 7 postnatally, the vaginal epithelium is composed of either flat or...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.1052010309
更新日期:1989-09-01 00:00:00
abstract::The SEM was used to study the development of respiratory structures in successive stages in relation to the overall changes occurring in the scorpions. Book lung development is a slow process, starting with spiracles and a sac-like atrium in the early embryo and continuing lamellar formation to 150 or more in the adul...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.10653
更新日期:2008-09-01 00:00:00
abstract::The skull of neotenic individuals of the Alpine Newt Triturus alpestris from the locality Drakolimni (Greece) is described on the basis of models made from magnified serial frontal sections. In order to recognize features associated with neoteny and paedomorphosis, the results were compared with normal development of ...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4687(199611)230:2<187::AID-JMOR
更新日期:1996-11-01 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
pub_type: 杂志文章
doi:10.1002/jmor.20302
更新日期:2014-11-01 00:00:00
abstract::As part of an effort to characterize reproductive modifications in internally inseminating catfishes, ovaries and male reproductive systems were examined histologically in two species of auchenipterid catfishes, Trachelyopterus lucenai and T. galeatus, from southeastern Brazil. Internal insemination was documented in ...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/1097-4687(200011)246:2<131::AID-JMOR7>3.0.
更新日期:2000-11-01 00:00:00
abstract::A phylogenetic survey is a powerful approach for investigating the evolutionary history of a morphological characteristic that has evolved numerous times without obvious functional implications. Restricted gill openings, an extreme modification of the branchiostegal membrane, are an example of such a characteristic. W...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.20371
更新日期:2015-06-01 00:00:00
abstract::Homolid crabs (Hypsophrys) from water deeper than 700 m in the Straits of Florida and Arabian Sea have smooth darkened oval spots contrasting with the surrounding roughened integument on inner and outer surfaces of each pincer at the base of the fixed finger. Cuticle is thinner over these spots than over surrounaing t...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.1051500407
更新日期:1976-12-01 00:00:00
abstract::We describe the complex shapes of myomeres and myosepta in the mackerels and tunas (Scombridae: Teleostei), and we reveal the orientation of two major systems of collagen fibers in myosepta and horizontal septa with respect to points of attachment to skeleton and skin. Our goal is to identify the likely pathways of th...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.1052170207
更新日期:1993-08-01 00:00:00
abstract::The identity and taxonomic distribution of paranasal sinuses among living platyrrhines has remained a contentious issue (e.g., Cave [1967] Am J Phys Anthropol 26:277-288 vs. Hershkovitz [1977] Chicago: University of Chicago Press) largely because the ontogenetic data required for their detection and identification (e....
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.10263
更新日期:2006-01-01 00:00:00
abstract::Cover illustration. Mayetiola destructor is a major pest of wheat in Europe, North Africa and North America. In this issue of the Journal of Morphology, Schneeberg et al. (pp. 1299-1311) investigate the adult head structures of the cecidomyiid fly and compared their findings with evolutionarily less successful familie...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.20220
更新日期:2013-11-01 00:00:00