Results 61 to 70 of about 42,982 (306)
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 +3 more
wiley +1 more source
The Anatomical Record, EarlyView.Abstract The green iguana (Iguana iguana) is an iguanine lizard with herbivorous and arboreal habits, whose distribution spans through South America, Central America to the south of North America. Although the genus Iguana is well‐known, the species still lacks a comprehensive and up‐to‐date anatomical study, particularly addressing the axial skeleton,
Vieno Rosa +2 more
wiley +1 more source
The Anatomical Record, EarlyView.Abstract The equine ovary exhibits unique structural and developmental features that distinguish it from those of other domestic species, including the presence of an ovulation fossa and an inversion of cortical and medullary layers. This study aimed to investigate the morphostructural development of the equine fetal ovary, with particular emphasis on ...
Laura Ver Goltz +5 more
wiley +1 more source
Infected metastatic carcinoid of the sacrum
PAMJ Clinical Medicine, 2020 Sacral bone tumors usually remain clinically silent for a long period and are often discovered in the context of nerve root compression (S1 or S2 radiculopathy or inflammatory sciatica) or pelvic organ compression. The most common sacral tumors in adults
Hassan Baallal, Ali Akhaddar
doaj +1 more source
Over the edge: Empirical evidence for the cliff‐edge model of obstetric selection
The Anatomical Record, EarlyView.Abstract The cliff‐edge model of obstetric selection maintains that larger neonates and smaller birth canals confer a positive selective advantage until labor becomes obstructed and vaginal delivery is no longer possible, eliciting an abrupt reduction in fitness.
Laura M. Watson +6 more
wiley +1 more source
Large chordoma of the sacrum [PDF]
BMJ Case Reports, 2017 A 53-year-old man presented to our service with a 1-month history of subacute bowel obstruction. Clinical examination was unremarkable with normal power and sensation in the lower limbs. This patient had no medical or surgical history. MRI of the pelvis identified a well-defined presacral midline lesion of 9.9 cm diameter, which appeared to arise from ...
Owen Godkin, Hussam Elkhwad, John McCabe
openaire +2 more sources
The Anatomical Record, EarlyView.Abstract The preauricular sulcus has long been debated as a pelvic feature variably attributed to obstetric stress, ligamentous traction, and broader biomechanical processes. To clarify its determinants, we analyzed 409 adult individuals from three archeological and one early modern skeletal collection from the Iberian Peninsula, integrating graded ...
Rebeca García‐González +5 more
wiley +1 more source
Creativity Studies, 2011 The traditional religious landscape is changing considerably, and the current religious landscape exhibits a remarkable variety. The religious landscape was shifting.
Basia Nikiforova
doaj +1 more source
Metastatic ependymoma of the sacrum [PDF]
Cancer, 1990 Ependymomas originating in the sacrum or extraspinal parasacral soft tissues are rare tumors. The majority are of the myxopapillary type and may be locally destructive. Even though metastases are not uncommon in retrosacral ependymomas, they have been rarely described in intrasacral locations.
R, Miralbell +4 more
openaire +2 more sources
Drivers of tail evolution in squamates and their implications for the fossorial origin of snakes
The Anatomical Record, EarlyView.Abstract The axial skeleton serves as the primary structural support in all vertebrates and is subdivided into five distinct regions: cervical, thoracic, lumbar, sacral, and caudal. Relaxation of constraints acting on the terminal end of the axial skeleton has led to remarkable variation in caudal vertebrae number across Squamata.
Olivia Binfield +2 more
wiley +1 more source