Results 181 to 190 of about 1,965,777 (237)

Updating the forelimb anatomy of the domestic cat (Felis catus, Felidae) based on evolutionary inferences of its muscles and nerves I: Shoulder and brachium

open access: yesJournal of Anatomy, EarlyView.
In this study, we provide a detailed description of the shoulder and brachium muscles and the brachial plexus of the domestic cat (Felis catus). We identified muscular variants (articularis humeri, coracobrachialis longus, biceps brachii caput breve), clarified the independence of the anconeus medialis muscle from the triceps brachii muscle, and ...
Juan Fernando Vélez García   +2 more
wiley   +1 more source

Comparative histological analysis of vertebrates reveals Triassic climate variability across southern Pangea

open access: yesJournal of Anatomy, EarlyView.
Bone tissues of Triassic taxa reveal life history signals consistent with climatic variation across southern Pangea, spanning present‐day Brazil, Argentina, Zimbabwe, and India. Slower growth patterns within the Zimbabwean assemblage suggest a comparatively more arid intracontinental environment than those closer to the coast. Artwork by Andrey Atuchin.
Valerie Trinidad   +6 more
wiley   +1 more source

How do forelimb long bones adapt in rhinoceroses? An in‐depth examination of their microanatomy

open access: yesJournal of Anatomy, EarlyView.
Here, we study the bone structure in the forelimb long bones of the five extant species of rhinoceroses. By combining traditional description of virtual sections made on the bones (A) with in‐depth cartographies of the variation of bone compactness and anisotropy (B), we show how bone tissue can adapt to extreme forces and constraints in the second ...
Cyril Etienne   +3 more
wiley   +1 more source

Cumulative effects of lifelong systemic excess growth hormone on postcranial skeletal morphology in adult mice

open access: yesJournal of Anatomy, EarlyView.
Our μCT‐based pilot study reveals size and shape disparity in the adult postcranial skeleton of growth‐hormone model (bGH) mice relative to wild‐type mice. bGH mice have larger and more sexually dimorphic bones, with a systemic radiodensity increase in bony sesamoids and associated, but typically uncalcified, soft tissues.
Joseph R. Groenke   +7 more
wiley   +1 more source

From sagittal to sprawled: Clavicular co‐option and the evolution of forelimb mechanics in talpines

open access: yesJournal of Anatomy, EarlyView.
Forelimb posture in Eulipotyphla divides into sagittal and sprawled groups with distinct scapular and clavicular orientations. First true rib strength scales with body mass, reflecting vertical ground reaction forces, whereas clavicular strength reflects differences in medially directed forces on the pectoral girdle, especially pronounced in highly ...
Shin‐ichi Fujiwara, Hiroaki Saito
wiley   +1 more source

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