Results 131 to 140 of about 265,783 (215)
Bipedalism or bipedalisms: The os coxae of StW 573
There has been a long debate about the possibility of multiple contemporaneous species of Australopithecus in both eastern and southern Africa, potentially exhibiting different forms of bipedal locomotion. Here, we describe the previously unreported morphology of the os coxae in the 3.67 Ma Australopithecus prometheus StW 573 from Sterkfontein Member 2
Robin Crompton +15 more
wiley +1 more source
Ángulo de Cobb, deformidad vertebral y fracturas en pacientes alcohólicos
Fundamento: La hipercifosis y la deformidad vertebral se relacionan con fracturas vertebrales. No existen estudios en alcohólicos crónicos. Objetivo: Analizar la relación existente entre el ángulo de Cobb y distintos grados de deformidad vertebral con ...
Alvisa-Negrín JC +6 more
doaj
Anatomy of spinal CSF loss in the American alligator (Alligator mississippiensis)
India ink introduced into the cranial cerebrospinal fluid (CSF) compartment of Alligator diffuses along the spinal cord and exits the spinal compartment using perineural flow, resulting in a prominent “ink cuff” forming at the base of the spinal nerve. In Alligator, the region of the ink cuff is drained by a small lymphatic vessel.
Hadyn DeLeeuw +5 more
wiley +1 more source
We present a method of injecting peripheral nerves with radiopaque contrast and subsequent CT scanning that produces excellent 3D models of the nerves, leaving the specimens intact and ready for further analysis (e.g., for micro‐CT or histology). Abstract The peripheral nervous system has been the subject of various studies on topics ranging from the ...
Radosław Rzepliński +4 more
wiley +1 more source
A three‐dimensional biomechanical model of the musculoskeletal system is used to analyse the potential locomotor functions of the small (~1 kg) Late Triassic archosaurian reptile Gracilisuchus stipanicicorum. The study finds that, potentially like the ancestral archosaur, this taxon was probably quadrupedal, plantigrade and neither strongly sprawling ...
Agustina Lecuona +3 more
wiley +1 more source
Aging of bone density (BV/TV) is regional: Forelimb [left] elements gain bone sporadically (orange) but hind limb elements [right] lose bone globally (blue). Abstract Globally, human population structure is quickly trending older, increasing the prevalence and systemic burden of age‐related skeletal disorders such as osteoporosis.
Cassandra M. Turcotte +16 more
wiley +1 more source
The junction between the midgut and hindgut co‐localizes with the rectosigmoid junction
At 5 weeks of development, the midgut has formed its primary loop (left). It is well established that the midgut is bounded cranially by the caudal end of the ventral mesentery and the presence of the common bile duct, but its caudal boundary remains to be established.
Hui Gao +5 more
wiley +1 more source
Fiber structure of the interosseous sacroiliac ligament exhibits a distinct organization, with predominantly vertical fibers in the inferior region and predominantly horizontal fibers in the superior region. These fiber alignment patterns likely reflect mechanical adaptation to the sacroiliac joint motion and may support imaging‐based evaluation of its
Masahiro Tsutsumi +5 more
wiley +1 more source

