Results 181 to 190 of about 19,312 (250)

Autogenous Lateral Saphenous Vein and Fascia Lata Grafts Used in the Repair of Ureteral Defects in Dogs. [PDF]

open access: yesVet Med Sci
Martins AW   +7 more
europepmc   +1 more source

Assessing the microstructure of simple rhamphothecae in chickens (Aves: Galliformes: Gallus gallus domesticus)

open access: yesJournal of Anatomy, EarlyView.
Simple rhamphotheca are externally homogeneous but internally are composed of several corneous layers with varying hardness. Areas under more mechanical stress such as the rostral portion and the tomia are significantly harder than other areas. Abstract Corneous sheaths on the jaws of beaked tetrapods, or rhamphothecae, are classified as simple or ...
Khanh H. T. To   +2 more
wiley   +1 more source

Post‐hatching development of the remote‐tactile bill‐tip organ in precocial shorebirds (Scolopacidae)

open access: yesJournal of Anatomy, EarlyView.
Juvenile scolopacid shorebirds possess well‐developed osteological correlates of tactile bill‐tip organs, indicating sensory systems for remote‐touch foraging are present from early life. Ontogenetic changes in bill‐tip morphology suggest ecological specialisation and interspecific variation develop later, after fledging in these highly precocial ...
Carla J. du Toit   +2 more
wiley   +1 more source

A bristle‐nosed Jurassic ray‐finned fish (Actinopterygii) bears true dermal odontodes on its snout

open access: yesJournal of Anatomy, EarlyView.
Teeth show extreme diversity, including tooth‐like dermal odontodes or “skin teeth” in many extant fishes. We describe the anatomy of enlarged tubercles on the snout of Redfieldius, an extinct early Jurassic fish. We found that the tubercles in Redfieldius are dermal odontodes that evolved independently from those of living species. Abstract Comparison
Jack Stack   +2 more
wiley   +1 more source

Initial In Vivo Analyses of Small Pore Polymer Scaffolds for Creation of an Artificial Cranial Stem Cell Niche. [PDF]

open access: yesBioengineering (Basel)
Soulas E   +5 more
europepmc   +1 more source

The variability of giraffe skull morphology

open access: yesJournal of Anatomy, EarlyView.
What does giraffe skull shape tell us about their development and evolution? Abstract Giraffe (Giraffa spp.) are among the most unique and charismatic extant animals, largely due to their distinct morphology. The evolutionary and developmental origin of ossicones is a key factor in giraffid biology, yet other features building their characteristic head
Nikolaos Kargopoulos   +15 more
wiley   +1 more source

Atlas of cortical sulcal imprints on Pan endocasts

open access: yesJournal of Anatomy, EarlyView.
This comprehensive atlas documents the frequency, position, and variability of cortical sulcal imprints across 21 extant Pan endocasts, providing the first quantitative baseline for comparative paleoneurology. This atlas serves as a reference for distinguishing ancestral from derived features in hominin brain evolution.
Edwin J. de Jager   +6 more
wiley   +1 more source

A tissue engineering approach to regenerate the cranial suture skeletal stem cell niche with a multicompartment biomaterial scaffold. [PDF]

open access: yesBone Res
Benton Swanson W   +13 more
europepmc   +1 more source

Anatomical description of the jaw muscles and theoretical bite force assessment in South American opossums using manual and digital dissection methods

open access: yesJournal of Anatomy, EarlyView.
Manual and virtual dissections were employed to examine the masticatory muscle architecture and bite force of three South American marsupials. The organisation of the muscles differed between species, with predicted bite forces exceeding previous estimates.
Alice Melekian   +4 more
wiley   +1 more source

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