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 the formation of an "epidermal placode" and its subsequent morphogenesis result in disticnt outer and inner epidermal surfaces, the reticulate scales elaborate only one type of epidermal surface.
journal_name
J Morpholjournal_title
Journal of morphologyauthors
Sawyer RH,Craig KFdoi
10.1002/jmor.1051540106subject
Has Abstractpub_date
1977-10-01 00:00:00pages
83-93issue
1eissn
0362-2525issn
1097-4687journal_volume
154pub_type
杂志文章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
pub_type: 杂志文章
doi:10.1002/jmor.1051650102
更新日期:1980-07-01 00:00:00
abstract::The recent discovery of a plethodontid salamander, Karsenia koreana, in Korea challenged our understanding of the biogeographic history of the family Plethodontidae, by far the largest family of salamanders, which otherwise is distributed in the New World with a few European species. Molecular studies suggest that Kar...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.10816
更新日期:2010-05-01 00:00:00
abstract::The ultrastructure of five epithelial cellular types is described. (1) Absorptive-storing cells possess a striated border and accumulate lipids and glycogen. They also contain an apical multivesicular complex and numerous membrane-bound PAS-positive granules of unknown significance. (2) Zymogenic cells contain numerou...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.1052020203
更新日期:1989-11-01 00:00:00
abstract::The uptake and retention of radiolabeled estradiol by both the male and female reproductive organs were examined in the baboon. Two male and two female baboons were injected intracardially with 1 microgram/kg body weight of 3H-estradiol and two animals, one male and one female, were injected with both labeled and 100 ...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.1051720203
更新日期:1982-05-01 00:00:00
abstract::The progression of ovarian follicular development in the Northern Alligator Lizard has been documented ultrastructurally and by enumeration of cells, with a focus on changes in the granulosa component of the follicle. The pattern of cellular differentiation of the granulosa entails, as in other lizards, the transforma...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.1051920205
更新日期:1987-05-01 00:00:00
abstract::The Norway lobster (Nephrops norvegicus) is economically important in Europe. However, apart from the female reproductive system, very little is known about its internal anatomy. This article focuses on studying the internal anatomy and ultrastructure of the male reproductive system. This system follows the general pa...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.20002
更新日期:2012-06-01 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
pub_type: 杂志文章
doi:10.1002/jmor.20829
更新日期:2018-07-01 00:00:00
abstract::Cetacean middle ears are unique among mammals in that they have an elongated tympanic membrane, a greatly reduced manubrium mallei, and an incudal crus longum that is shorter than the crus breve. Elongation of the tympanic membrane and reduction of the manubrium is thought to be related to an evolutionary rotation of ...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.1044
更新日期:2001-08-01 00:00:00
abstract::The arrangement of the musculature and the fibers of the extracellular matrix (ECM) in the flexible jaw joint of the sandworm Alitta virens (Annelida, Polychaeta) was studied using dissection and histology. The jaws are capable of a wide range of motions principally related to defense and feeding. The left and right j...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.20349
更新日期:2015-04-01 00:00:00
abstract::Caudal courtship glands (CCGs) are sexually dimorphic glands described in the skin of the dorsal tail base of some male salamanders in the genera Desmognathus, Eurycea, and Plethodon in the family Plethodontidae. These glands are believed to deliver pheromones to females during courtship, when the female rests her chi...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.20342
更新日期:2015-03-01 00:00:00
abstract::Growth dynamics of the primary spine of the cidaroid sea urchin Phyllacanthus imperialis was assessed for the first time using pulsed (26) Mg-labeling and NanoSIMS isotopic imaging. The sea urchin was incubated twice (for 48 h) in artificial seawater with elevated level of (26) Mg. After each labeling event, the sea u...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.20260
更新日期:2014-07-01 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::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::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
pub_type: 杂志文章
doi:10.1002/jmor.10404
更新日期:2006-03-01 00:00:00
abstract::A reduction in free ribosomes and increases in rough endoplasmic reticulum and Golgi complexes in follicle cells during oogenesis suggest their involvement in supplying precursor material for synthesis of the vitelline and chorionic membranes of the ichneumonid parasitoid Campoletis sonorensis. The inner region of the...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.1051740207
更新日期:1982-11-01 00:00:00
abstract::Cyprinids constitute the largest fish family and are characterized by their pharyngeal teeth. The masticatory mechanism is still poorly understood. The complex of structures that determine the movements of pharyngeal teeth and chewing pad in the carp (Cyprinus carpio L.) is analyzed. Activities in 16 head muscles of a...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.1051720208
更新日期:1982-05-01 00:00:00
abstract::The brain-microvascular architecture of the newt (Triturus cristatus carnifex) was studied by scanning electron-microscopical examination of microvascular corrosion casts. It is characterized at the leptomeningeal level by a superficial network of single vessels that leave the meningeal sheath to form hairpin-shaped c...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.1052100304
更新日期:1991-12-01 00:00:00
abstract::This study details the gross and microscopic anatomy of the pelvic kidney in male Ambystoma maculatum. The nephron of male Ambystoma maculatum is divided into six distinct regions leading sequentially away from a renal corpuscle: (1) neck segment, which communicates with the coelomic cavity via a ventrally positioned ...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.10883
更新日期:2010-12-01 00:00:00
abstract::The morphology of the musculature and connective tissues of the arms of Octopus bimaculoides was analyzed with light microscopy. We also studied O. briareus and O. digueti, which possess relatively more elongate and less elongate arms, respectively. The morphology of the arms was found to be remarkably uniform among s...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.10548
更新日期:2007-10-01 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
pub_type: 杂志文章
doi:10.1002/jmor.20651
更新日期:2017-03-01 00:00:00
abstract::The theory of Kukalova-Peck ('78) is examined and rejected except for the hypothesis of the partially pleural origin of wings. Data suggest that the arthropods ancestral to insects left the water, and that movable precursors of the wings, possibly exopodites, were immobilized and fused with the tergum to form part of ...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.1051680309
更新日期:1981-06-01 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
pub_type: 杂志文章
doi:10.1002/jmor.10746
更新日期:2009-09-01 00:00:00
abstract::The purpose of this study was to find out whether the microstructure of the highly permeable skin of heat-acclimated pigeons allowing increased evaporative cooling differs from the skin of pigeons in the non-acclimated or cold-acclimated state. In addition, the correlation between epidermal morphology and cutaneous wa...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4687(199801)235:1<17::AID-JMOR2
更新日期:1998-01-01 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
pub_type: 杂志文章
doi:10.1002/jmor.1051470204
更新日期:1975-10-01 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
pub_type: 杂志文章
doi:10.1002/jmor.1051710205
更新日期:1982-02-01 00:00:00
abstract::In spite of the growing interest in rodents with subterranean activity in general and the spalacids (Spalacidae) in particular, little is known about the biology of most members of this clade, such as the Chinese bamboo rat (Rhizomys sinensis). Here, we analyzed the ear morphology of R. sinensis with respect to hearin...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.20519
更新日期:2016-05-01 00:00:00
abstract::Only species belonging to the bryozoan subtaxon Phylactolaemata possess an epistome. To test whether there is a specific coelomic cavity inside the epistome, Fredericella sultana, Plumatella emarginata, and Lophopus crystallinus were studied on the ultrastructural level. In F. sultana and P. emarginata, the epistome c...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.10691
更新日期:2009-03-01 00:00:00
abstract::Statoblasts of five higher phylactolaemates were compared morphologically. As a result, they were divided into two groups: Group I comprising Lophopus crystallinus, Lophopodella carteri, and Pectinatella gelatinosa, and Group II comprising Pectinatella magnifica and Cristatella mucedo. These two groups are thought to ...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.1051650203
更新日期:1980-08-01 00:00:00
abstract::The antennal circulatory organ of Periplaneta americana and Blaberus craniifer was investigated by light and electron microscopy. This organ consists of two pulsatile ampullae located near the antennal base which are interconnected by a large transverse muscle and associated blood vessels which run into the antennae. ...
journal_title:Journal of morphology
pub_type: 杂志文章
doi:10.1002/jmor.1051850210
更新日期:1985-08-01 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
pub_type: 杂志文章
doi:10.1002/jmor.1051450209
更新日期:1975-02-01 00:00:00