Skeleton and musculature of the head and thorax of Trichoplusia ni (Hubner), (Lepidoptera: Noctuidae).

abstract：:The spermatozoal ultrastructure in three solenocerid shrimps (Solenocera membranacea, S. africana, and Pleoticus muelleri) from different Atlantic locations was examined with the aim of increasing understanding of the phylogenetic relationships in the Dendrobranchiata. A considerable structural similarity between the ...

journal_title：Journal of morphology

authors： Medina A,Scelzo MA,Tudge CC

更新日期：2006-03-01 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：: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 cytoarchitecture of nuclei in the preoptic area, ventral thalamus, dorsal thalamus, epithalamus, hypothalamus, posterior tuberculum, synencephalon, and pretectum and the accessory optic nuclei was analyzed in a perciform teleost, the sea bass Dicentrarchus labrax, by using serial sections stained with cresyl-viole...

journal_title：Journal of morphology

authors： Cerdá-Reverter JM,Zanuy S,Muñoz-Cueto JA

更新日期：2001-03-01 00:00:00

abstract：:During the long starvation period (November to June) of the lizard (Varanus exanthematicus), pancreatic B cells undergo profound modification. The degeneration of beta granules observed in electron microscopy appears correlated with the diminution of the immunoreactive insulin-like content of the pancreas. The analogy...

journal_title：Journal of morphology

authors： Godet R,Mattei X,Dupé-Godet M

更新日期：1984-06-01 00:00:00

abstract：:The flagellum of the thysanopteran spermatozoon has been examined by electron microscopy and computer-aided image analysis. The flagellum consists of 27 microtubular elements that probably are formed as outgrowths from three separate basal bodies. Nine of the elements are normal microtubular doublets that carry dynein...

journal_title：Journal of morphology

authors： Dallai R,Afzelius BA,Lanzavecchia S,Bellon PL

更新日期：1991-09-01 00:00:00

abstract：:Previous studies of squamate epidermal structure have focused on either histology and ultrastructure or oberhautchen surface texture as revealed by scanning electron microscopy (SEM). Using SEM data drawn from a variety of lizard taxa (primarily iguanids, but also agamids, chamaeleonids, and scincids), as well as amph...

journal_title：Journal of morphology

authors： Irish FJ,Williams EE,Seling E

更新日期：1988-07-01 00:00:00

abstract：:Using immunocytochemistry at light- and electron-microscope levels, we studied the distribution of three monoclonal antibodies (AE1, AE2, AE3) specific for mammalian alpha-keratins in regenerating lizard epidermis. We also characterized the keratins expressed during this process by immunoblotting after electrophoretic...

journal_title：Journal of morphology

authors： Alibardi L,Maurizii MG,Taddei C

更新日期：2000-12-01 00:00:00

abstract：:The wall of the asymmetrical saclike lungs of the fishes Polypterus and Erpetoichthys consists of several functionally different tissue layers. Their lumen is lined by a surface epithelium composed of (1) highly attenuated cells, termed pneumocytes I; (2) pneumocytes II with lamellar bodies, presumably indicating surf...

journal_title：Journal of morphology

authors： Lechleuthner A,Schumacher U,Negele RD,Welsch U

更新日期：1989-08-01 00:00:00

abstract：:The crocodilian naris is regulated by smooth muscle. The morphology of this system was investigated using a combination of gross, light microscopic, and micro-CT analyses, while the mechanics of narial regulation were examined using a combination of Hall Effect sensors, narial manometry, and electromyography. Alligato...

journal_title：Journal of morphology

authors： Klassen M,Adams J,Cramberg M,Knoche L,Young BA

更新日期：2020-06-01 00:00:00

abstract：:Tardigrada, commonly called water bears, is a taxon of microscopic panarthropods with five-segmented bodies and four pairs of walking legs. Although tardigrades have been known to science for several centuries, questions remain regarding many aspects of their biology, such as embryogenesis. Herein, we used scanning el...

journal_title：Journal of morphology

authors： Gross V,Minich I,Mayer G

更新日期：2017-04-01 00:00:00

abstract：:Newly metamorphosed individuals of the Kenyan reed frog, Hyperolius viridiflavus ferniquei, are able completely to regenerate amputated digits, including the morphologically complex digital pad. The sequence of morphological events is very similar to that seen in the typical epimorphic regeneration of amphibian extrem...

journal_title：Journal of morphology

authors： Richards CM,Carlson BM,Rogers SL

更新日期：1975-08-01 00:00:00

abstract：:Developmental studies of the Recent Australian lungfish, Neoceratodus forsteri, show that this species has two sets of functional tooth-bearing bones in the lower jaw of young hatchlings. These coincide with an early stage in the life history when the fish is strictly carnivorous. In N. forsteri, a paired tooth-bearin...

journal_title：Journal of morphology

authors： Kemp A

更新日期：1995-09-01 00:00:00

abstract：:From the elongated neck of the giraffe to the elaborate train of the peacock, extreme traits can result from natural or sexual selection (or both). The extreme chelicerae of the long-jawed spiders (Tetragnatha) present a puzzle: do these exaggerated chelicerae function as weapons or genitalia? Bristowe first proposed ...

journal_title：Journal of morphology

authors： Danielson-François A,Sullivan HN

更新日期：2020-10-19 00:00:00

abstract：:The marine priapulid Priapulus caudatus has a voluminous body cavity filled with a blood-like fluid containing erythrocytes and leucocytes (amoebocytes). The hematocrit of animals weighing 0.5-14 gm was 2-10%. The erythrocytes contain a hemerythrin blood pigment. The structure of the coelomocytes was studied by light ...

journal_title：Journal of morphology

authors： Mattisson A,Fänge R

更新日期：1973-07-01 00:00:00

abstract：:The larvae of Halicryptus spinulosus bear six rings of sensory/ locomotory appendages. Twelve pedicellate flosculi, 6 dorsal and 6 ventral, are associated with the neck-lorica junction. Newly described are two rows of 4-5 flosculi present on the dorsal and ventral plates, and 2 tubuli located on each dorsolateral and ...

journal_title：Journal of morphology

authors： Storch V,Higgins RP

更新日期：1991-11-01 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

authors： Soler-Gijón R

更新日期：1999-10-01 00:00:00

abstract：:The origins and evolution of the three major clades of modern amphibians are still a source of controversy, and no general consensus exists as to their relationship to the various known Paleozoic taxa. This may indicate that additional character complexes should be studied to resolve their phylogenetic relationship. T...

journal_title：Journal of morphology

authors： Sigurdsen T,Bolt JR

更新日期：2009-12-01 00:00:00

abstract：:Previously we showed that type XII collagen (col XII) is highly upregulated in the regenerating newt (Notophthalmus viridescens) forelimb. Here, using immunohistochemistry and in situ hybridization, we studied the pattern of expression of col XII during early stages of adult newt tail regeneration. The results show th...

journal_title：Journal of morphology

authors： Wei Y,Tassava RA

更新日期：1996-11-01 00:00:00

abstract：:Reproduction was studied in a South Carolina population of the paedomorphic salamander Siren intermedia with emphasis on anatomy of the female oviduct. The oviduct forms 67-79% of the snout-vent length in this elongate species and can be divided into three portions. The atrium, 7-13% of oviducal length, is the narrow ...

journal_title：Journal of morphology

authors： Sever DM,Rania LC,Krenz JD

更新日期：1996-03-01 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：: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 surface areas of the tracheal and cuticular systems of Peripatus acacioi individuals of different body weights were determined by morphometric analysis. The results demonstrate that both surfaces increase with body weight, although the observed increase in the surface area of the tracheal system appears to be at a...

journal_title：Journal of morphology

authors： Bicudo JEPW

更新日期：1986-05-01 00:00:00

abstract：:Head structures of the leaf mining larva of the chrysomelid species Podagricomela shirahatai are described and illustrated. Internal and external structures were reconstructed three dimensionally based on image stacks obtained with microcomputed tomography. The larval head is characterized by prognathism, a dorsoventr...

journal_title：Journal of morphology

authors： Hua Y,Beutel RG,Ge SQ,Yang XK

更新日期：2015-04-01 00:00:00

abstract：:Sea urchin adoral tube feet are highly specialized organs that have evolved to provide efficient attachment to the substratum. They consist of a disk and a stem that together form a functional unit. Tube foot disk tenacity (adhesive force per unit area) and stem mechanical properties (e.g., stiffness) vary between spe...

journal_title：Journal of morphology

authors： Santos R,Flammang P

更新日期：2012-01-01 00:00:00

abstract：:Spermatozoa from representatives of the five insect orders in superorder Neuropteroidea were examined by electron microscopy following a new fixation method that includes tannic acid in the primary fixative but has uranyl acetate rather than osmium tetroxide as the secondary fixative. The sperm axoneme was found to be...

journal_title：Journal of morphology

authors： Afzelius BA,Dallai R

更新日期：1994-01-01 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

authors： Sims MR

更新日期：1987-03-01 00:00:00

abstract：:Amphisabenia is a group of squamates adapted for a fossorial lifestyle. The skull is the animal's the main digging tool, and can present one of four principal shapes. The shovel-headed shape is considered to be the most specialized for digging. The South American genus Leposternon presents a shovel-headed morphotype, ...

journal_title：Journal of morphology

authors： Hohl LSL,Barros-Filho JD,Rocha-Barbosa O

更新日期：2018-11-01 00:00:00

abstract：:The female reproductive system of Sphaerodema rusticum consists of a pair of ovaries, two lateral oviducts, a median common oviduct, and a median spermatheca. Accessory glands are absent. Each ovary has five free ovarioles branching from the oviduct. Each ovariole consists of a terminal filament, germarium, vitellariu...

journal_title：Journal of morphology

authors： Jawale SM,Ranade DR

更新日期：1990-08-01 00:00:00

abstract：:The lungs of the New Caldeonian gecko Rhacodactylus leachianus were examined by means of gross dissection and light and electron microscopy. This tropical species, which is the largest living gecko, possesses two simple, single-chambered lungs. Right and left lungs are of similar size and shape. The lung volume (27.2 ...

journal_title：Journal of morphology

authors： Perry SF,Bauer AM,Russell AP,Alston JT,Maloney JE

更新日期：1989-01-01 00:00:00