Journal of Morphology

Cover image for Vol. 278 Issue 12

Edited By: J. Matthias Starck

Impact Factor: 1.655

ISI Journal Citation Reports © Ranking: 2016: 7/21 (Anatomy & Morphology)

Online ISSN: 1097-4687

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  1. Ultrastructure of endocrine pancreatic granules during pancreatic differentiation in the grass snake, Natrix natrix L. (Lepidosauria, Serpentes)

    Magdalena Kowalska and Weronika Rupik

    Version of Record online: 17 NOV 2017 | DOI: 10.1002/jmor.20775

    Thumbnail image of graphical abstract

    Based on their biology, reptiles are unique among the vertebrate taxa. Studies on the differentiation of the grass snake pancreatic cells revealed similarities and differences compared to the same process that has been described in other vertebrates. Based on our studies, we revealed that the endocrine pancreas of the grass snake contains four main types of endocrine cells (A, B, D, PP), which is similar to other vertebrates because it is probably an evolutionarily conserved feature of this gland. Within the main types of granules (A, B, D, PP), different morphological subtypes that indicated their maturity, which may be related to the different content of these granules during the process of maturation, could be distinguished.

  2. Size, shape, and sex-dependent variation in force production by crayfish chelae

    Brian M. Malavé, Joseph M. Styga and Ethan D. Clotfelter

    Version of Record online: 17 NOV 2017 | DOI: 10.1002/jmor.20773

    Thumbnail image of graphical abstract

    Geometric and traditional morphometrics were applied to the study of pinching force by chelae of the crayfish Procambarus clarkii. Chela size and shape were better predictors of force production in females than in males. Sex differences in the size- and shape-force relationships suggest different selection pressures on males and females of this species.

  3. Macroscopic and microscopic analyses in flexor tendons of the tarsometatarso-phalangeal joint of ostrich (Struthio camelus) foot with energy storage and shock absorption

    Rui Zhang, Dianlei Han, Gang Luo, Lei Ling, Guoyu Li, Qiaoli Ji and Jianqiao Li

    Version of Record online: 17 NOV 2017 | DOI: 10.1002/jmor.20772

    Thumbnail image of graphical abstract

    Struthio camelus, light micrographs of the tendon of the M. flexor digitorum longus. (a, c, e) Longitudinal and (b, d, f) transverse sections of the tendon in (a, b) proximal, (c, d) middle and (e, f) distal TMTPJ.

  4. Built to bite? Differences in cranial morphology and bite performance between narrow- and broad-headed European glass eels

    Jens De Meyer, Sam Van Wassenbergh, Mathias Bouilliart, Jelle Dhaene and Dominique Adriaens

    Version of Record online: 17 NOV 2017 | DOI: 10.1002/jmor.20776

    Thumbnail image of graphical abstract

    Having a wide or narrow head in nonfeeding European glass eels can be linked to musculoskeletal differences affecting feeding performance. This may give broad-headed eels the advantage to start consuming harder prey items than narrow-heads can.

  5. The development of lingual glands in the domestic duck (Anas platyrhynchos f. domestica): 3D-reconstruction, LM, and SEM study

    Kinga Skieresz-Szewczyk, Pieter Cornillie and Hanna Jackowiak

    Version of Record online: 15 NOV 2017 | DOI: 10.1002/jmor.20774

    Thumbnail image of graphical abstract

    3D-reconstructions and microscopic observations were used to describe the development of the lingual glands in the domestic duck. The three types of the lingual glands develop by branching of the epithelial cords. Generally, the rostral lingual glands branch earlier than the caudal lingual glands. Light microscopy and scanning electron microscopy document the differentiation of the simple epithelial cords of lingual glands into complex alveolar-tubular glands.

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