Results 71 to 80 of about 387,266 (249)

Osteological correlates of the respiratory and vascular systems in the neural canals of Mesozoic ornithurines Ichthyornis and Janavis

The Anatomical Record, EarlyView.
Abstract In birds, the neural canal houses a variety of anatomical structures including the spinal cord, meninges, spinal vasculature, and respiratory diverticula. Among these, paramedullary diverticula and the extradural dorsal spinal vein may leave behind osteological correlates in the form of pneumatic foramina and fossae, and a bilobed geometry of ...
Jessie Atterholt, M. Grace Burton, Mathew J. Wedel, Juan Benito, Ellen Fricano, Daniel J. Field   +5 more
wiley   +1 more source

Synchronous Primary Leiomyosarcoma in the Thoracic Vertebra and the Liver [PDF]

The Korean Journal of Gastroenterology, 2019
This is a case report of simultaneous primary leiomyosarcomas in the spine and liver. A 64-year-old woman presented to the Seoul Paik Hospital with epigastric discomfort and constipation that she had experienced for two months. A physical examination revealed severe tenderness around the thoraco-lumbar junction.
Young Kwan Kim, Jung-A Kim, Soo Hyung Ryu, Jong Hyun Choi, Pei Chuan Tsung, Jong Hyeok Park, Jeong Seop Moon, Jae Chan Shim, Hye Kyung Lee, James Matthew Loutzenhiser   +9 more
openaire   +3 more sources

Skeletal pathologies in extant crocodilians as a window into the paleopathology of fossil archosaurs

The Anatomical Record, EarlyView.
Abstract Crocodilians, together with birds, are the only extant relatives to many extinct archosaur groups, making them highly important for interpreting paleopathological conditions in a phylogenetic disease bracketing model. Despite this, comprehensive data on osteopathologies in crocodilians remain scarce.
Alexis Cornille, Kyla Beguesse, Ewan Wolff, Clemens Zinner, Patrick Asbach, François Clarac, Florian Witzmann   +6 more
wiley   +1 more source

Morphological variation in atlas and axis of Neotropical spiny rats (Rodentia, Echimyidae)

The Anatomical Record, EarlyView.
Abstract The unique morphologies of the first two cervical vertebrae, the atlas and axis, represent a significant innovation in mammalian evolution. These structures support the weight of the head and enable intricate movements of the head and neck.
Thomas Furtado da Silva Netto, João Felipe Leal Kaiuca, Adriana Itatí Olivares, William Corrêa Tavares   +3 more
wiley   +1 more source

Fused Thoracic Vertebrae in Birds

Journal of the Yamashina Institute for Ornithology, 1982
The notarium, a group of fused thoracic vertebrae, is characteristic of birds of five orders and is found in one or more families of five more orders of non-passerine birds. Sixteen patterns of variation in the number of vertebrae in the notarium and of unfused vertebrae between it and the synsacrum were found.
openaire   +3 more sources

An ontological morphological phylogenetic framework for living and extinct ray‐finned fishes (Actinopterygii)

The Anatomical Record, EarlyView.
Abstract The ray‐finned fishes include one out of every two species of living vertebrates on Earth and have an abundant fossil record stretching 380 million years into the past. The division of systematic knowledge of ray‐finned fishes between paleontologists working on extinct animals and neontologists studying extant species has obscured the ...
Jack Stack
wiley   +1 more source

A CASE OF FUSION OF THORACIC VERTEBRA

Journal of Ayurveda and Holistic Medicine, 2013
The fusion of vertebral column is a rare anomaly usually congenital in origin. The fusion of thoracic vertebrae can present many clinical signs including congenital scoliosis.
Diny Thomas, Bhagwan Gangadhar Kulkarni
doaj  

Re‐evaluation of a soft crested Edmontosaurin, with implications for hadrosaurid life appearance and diversity

The Anatomical Record, EarlyView.
Abstract Hadrosaurid dinosaurs are generally regarded as “crested” or “non‐crested” depending on the presence or absence of a bony cranial crest. At least one supposedly “non‐crested” hadrosaur is known to have possessed a soft tissue cranial crest (or comb), based on an exceptionally preserved “mummified” specimen. Here we redescribe this specimen and
Henry S. Sharpe, Phil R. Bell, Ian Baylatry, Robin Sissons, Corwin Sullivan   +4 more
wiley   +1 more source

Patterns of spinal motion, kinematic spaces and the land‐to‐sea transition in carnivorans

The Anatomical Record, EarlyView.
Using 3D reconstructions, we quantify intervertebral joint mobility to investigate how cervical, thoracic, and lumbar vertebral regions evolved distinct kinematic roles in pinnipeds. The findings reveal lineage‐specific adaptations for swimming and highlight the functional significance of vertebral joint flexibility in ecological transitions.
Juan Miguel Esteban, Alberto Martín‐Serra, Alejandro Pérez‐Ramos, Borja Figueirido   +3 more
wiley   +1 more source

Thoracic and Abdominal Radiologic Anatomy of the Greater Cane Rat (Thryonomys swinderianus)

Veterinary Medicine International
The greater cane rat (Thryonomys swinderianus) is widely distributed in sub-Saharan Africa, including western, central, eastern and southern Africa. It is the African’s second-largest rodent.
Mazengo Masigati, Mirende Kichuki, Modesta Makungu   +2 more
doaj   +1 more source