Olecranon orientation as an indicator of elbow joint angle in the stance phase, and estimation of forelimb posture in extinct quadruped animals.

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 endorgans of the inner ear of the gar were examined using transmission and scanning electron microscopy as well as nerve staining. The ultrastructure of the sensory hair cells and supporting cells of the gar ear are similar to cells in other bony fishes, whereas there are significant differences between the gar an...

journal_title：Journal of morphology

authors： Mathiesen C,Popper AN

更新日期：1987-11-01 00:00:00

abstract：:The structural organization of the spermatozoon from the Eurasian beaver, Castor fiber (Family: Castoridae), was determined and compared to that of other sciuromorph rodents. The beaver spermatozoon has a head, which is variable in form but usually paddle-shaped, with a small nucleus and very large acrosome, and a tai...

journal_title：Journal of morphology

authors： Bierla JB,Gizejewski Z,Leigh CM,Ekwall H,Söderquist L,Rodriguez-Martinez H,Zalewski K,Breed WG

更新日期：2007-08-01 00:00:00

abstract：:Iridescent butterfly scales are structurally colored, relying upon the interaction of light with detailed architecture to produce their color. In some iridescent scales, the reflective elements are contained within the body of the scale and come in two basic forms, lattices that produce diffraction colors (analogous t...

journal_title：Journal of morphology

authors： Ghiradella H

更新日期：1989-10-01 00:00:00

abstract：:This research was designed to follow up the observation of Thornton and Kraemer ('51) that regressed, denervated limbs of Ambystoma larvae will not regenerate upon reinnervation if all digits on the limbs were not completely resorbed. The object of this experiment was to determine whether the presence of an apical str...

journal_title：Journal of morphology

authors： Carlson BM

更新日期：1977-11-01 00:00:00

abstract：:The gross relationships and light microscopic anatomy of the suprarenal gland of a prosimian primate, Galago senegalensis, is described. The left gland is located medial to the pole of the left kidney in a fascial compartment of its own. The right suprarenal is located medial to the pole of the right kidney in intimat...

journal_title：Journal of morphology

authors： Carrmicheal SW,Haines DE,Pinkstaff CA

更新日期：1975-02-01 00:00:00

abstract：:The mammary gland is a common site of neoplasms in the female cat. All the malignant tumors metastasize to a lesser or a greater extent through the lymphatic system. However, the anatomical knowledge of this system is not sufficiently well known in cats to develop a reasoned model for the extirpation of these glands i...

journal_title：Journal of morphology

authors： Raharison F,Sautet J

更新日期：2006-03-01 00:00:00

abstract：:The structure, attachment and subsequent metamorphosis of larvae of the marine bryozoan Bugula neritina were studied by light and electron microscopy. Two points of larval anatomy are of special significance to proper interpretation of the metamorphosis: 1 Two cytologically similar blastemal tissues, each laden with f...

journal_title：Journal of morphology

authors： Woollacott RM,Zimmer RL

更新日期：1971-07-01 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

authors： Gruberg ER,Harris WA

更新日期：1981-10-01 00:00:00

abstract：:The development of the morphologic features of neurons in the anterior dorsal ventricular ridge (ADVR) has been followed in Golgi preparations from the lizard Gallotia galloti between embryonic stage 32 and post-eclosion stages of specimens 3.6-4.5 cm in length. The differentiation sequence of multipolar and bitufted ...

journal_title：Journal of morphology

authors： Díaz C,Yanes C,Medina L,Trujillo CM,Monzón M,Puelles L

更新日期：1990-03-01 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：:A description of the external morphogenesis of male and female embryos of X. ferrugineus, derived from in vivo observation, is presented here. The embryogenesis of this beetle is typical of the Coleoptera, and is also similar in most respects to the generalized insect plan. Observed unusual aspects of X. ferrugineus e...

journal_title：Journal of morphology

authors： Beeman SL,Norris DM

更新日期：1977-05-01 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：:The plainfin midshipman fish, Porichthys notatus, is a nocturnal marine teleost that uses social acoustic signals for communication during the breeding season. Nesting type I males produce multiharmonic advertisement calls by contracting their swim bladder sonic muscles to attract females for courtship and spawning wh...

journal_title：Journal of morphology

authors： Mohr RA,Whitchurch EA,Anderson RD,Forlano PM,Fay RR,Ketten DR,Cox TC,Sisneros JA

更新日期：2017-11-01 00:00:00

abstract：:Data describing segmental masses and moments of inertia (MOI) of limb segments are required for inverse dynamic calculations. In horses, these values are usually calculated using regression equations that have been developed from a limited number of horses representing a small number of breeds. The objective of the pr...

journal_title：Journal of morphology

authors： Nauwelaerts S,Clayton HM

更新日期：2018-07-01 00:00:00

abstract：:A survey of skeletal muscles throughout craniates shows basic kinds of myosin filament arrangement, simple-lattice and superlattice, within the A-band of each sarcomere. Distribution of simple- and superlattice arrangements across a phylogeny of craniates suggests that the superlattice arrangement is primitive and tha...

journal_title：Journal of morphology

authors： Luther PK,Squire JM,Forey PL

更新日期：1996-09-01 00:00:00

abstract：:The vertebrate head as a major novelty is directly linked to the evolutionary success of the vertebrates. Sequential information on the embryonic pattern of cartilaginous head development are scarce, but important for the understanding of its evolution. In this study, we use the oriental fire bellied toad, Bombina ori...

journal_title：Journal of morphology

authors： Lukas P,Olsson L

更新日期：2020-06-01 00:00:00

abstract：:Larval and juvenile air breathing fish may experience nocturnal and/or seasonal aquatic hypoxia. Yet, whether hypoxia induces respiratory developmental plasticity in larval air breathing fish is uncertain. This study predicted that larvae of two closely related anabantid fish-the facultative air breather the Siamese f...

journal_title：Journal of morphology

authors： Mendez-Sanchez JF,Burggren WW

更新日期：2019-02-01 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：:The mouthparts of female Corethrella brakeleyi and C. wirthi were studied using light and electron microscopy. Mandibles, hypopharynx and labium are highly sclerotized and are modified for obtaining blood meals. All structures were larger in C. brakeleyi than in C. wirthi except mandibular and hypopharyngeal teeth; th...

journal_title：Journal of morphology

authors： McKeever S,Pound JM

更新日期：1979-08-01 00:00:00

abstract：:The receptaculum seminis, opening into the female genital tract, is found only in the metastriate ixodid ticks. An endospermatophore that has been inserted into the female genital aperture at copulation is first stored in the receptaculum seminis, where spermiogenesis is completed before the sperm ascend the oviducts....

journal_title：Journal of morphology

authors： Kakuda H,Mōri T,Shiraishi S

更新日期：1997-02-01 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：:The morphology of the jaw suspension and jaw protrusion mechanism in lamniform sharks is described and mapped onto a cladogram to investigate how changes in jaw suspension and protrusion have evolved. This has revealed that several evolutionary modifications in the musculoskeletal apparatus of the jaws have taken plac...

journal_title：Journal of morphology

authors： Wilga CD

更新日期：2005-07-01 00:00:00

abstract：:Liolaemus elongatus (Liolaemidae) is a viviparous, mainly lecithotrophic species with placental structures specialized for uptake of oxygen and inorganic nutrient transport. An allantoplacenta and an omphaloplacenta are present during early embryonic stages (25-28) and there is a moderate distension of the uterine wal...

journal_title：Journal of morphology

authors： Crocco M,Ibarguengoytía NR,Cussac V

更新日期：2008-07-01 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：:Electron microscopy of spermatogenesis in the Hawaiian red lobster, Enoplometopus occidentalis (Randall), has revealed unusual activity within membranous organelles. Mitochondria-like bodies (MLB-1) seen first in spermatogonia appear in primary spermatocytes to swell and fuse as the cytoplasm develops annulate lamella...

journal_title：Journal of morphology

authors： Haley SR

更新日期：1986-10-01 00:00:00

abstract：:This study reports a comprehensive description of penaeid spermatogenesis (Penaeus monodon) by light and transmission electron microscopy. A conspicuous characteristic of spermatocytogenesis was a ring-like structure with high electron-density adjacent to the nucleus of a primary spermatocyte. During the spermiogenesi...

journal_title：Journal of morphology

authors： Feng T,Paterson B,Johnston SD

更新日期：2017-05-01 00:00:00

abstract：:We described the topography and morphometry of the testicular artery, pampiniform plexus veins, and indirect connections between them in the spermatic cord of the bull. Sixty microcorrosive casts of bovine spermatic cords were analyzed macroscopically, by stereomicroscopy, and by scanning electron microscopy. The aver...

journal_title：Journal of morphology

authors： Polguj M,Jȩdrzejewski KS,Topol M

更新日期：2011-04-01 00:00:00

abstract：:The sequential changes during spermatogenesis in the testis of two species of caecilians, Ichthyophis tricolor (Ichthyophiidae) and Uraeotyphlus cf. narayani (Uraeotyphliidae), of Western Ghats of Kerala, India, were traced using both histological techniques and transmission electron microscopy. The cell nests were as...

journal_title：Journal of morphology

authors： Smita M,Oommen OV,Jancy MG,Akbarsha MA

更新日期：2004-07-01 00:00:00

abstract：:The embryonic development of the viviparous scorpion, Heterometrus fulvipes, has been followed throughout the gestation period and the successive stages of the developing embryos have been examined. The morphological features of the embryos are also described and illustrated according to their approximate age. ...

journal_title：Journal of morphology

authors： Subburam V,Reddy TG

更新日期：1981-09-01 00:00:00