Results 91 to 100 of about 274,178 (292)

Clade‐wide morphological and functional variation of the sauropsid columella

The Anatomical Record, EarlyView.
Abstract The columella (=stapes) is the middle ear bone of reptiles that transmits vibrations from the environment to the inner ear. It has been shown to exhibit extensive interspecific morphological disparity in several clades; however, its morphological variation and associated functional consequences remain poorly described.
John Peacock, Serjoscha W. Evers, Tiago R. Simões, Garth M. Spellman, Daniel J. Field   +4 more
wiley   +1 more source

Exploring the cranial morphology and possible convergences of Triassic non‐crocodylomorph pseudosuchians (Archosauria: Pseudosuchia) with other sauropsids through linear morphometrics

The Anatomical Record, EarlyView.
Abstract Triassic pseudosuchians had highly diversified cranial morphologies. These archosaurs occupied diverse ecological roles, ranging from terrestrial predators and herbivores to semiaquatic ambush predators and possible waders. Here, we apply linear cranial morphometrics to assess possible convergences with other sauropsids from the clades ...
Rafael Terras, Rodrigo Temp Müller, Leonardo Kerber, Mirian Carbonera   +3 more
wiley   +1 more source

Description of large, well‐preserved Enchodus specimens from the Bearpaw Formation of Alberta, Canada

The Anatomical Record, EarlyView.
Abstract Fishes of the genus Enchodus were abundant and cosmopolitan in the Late Cretaceous, but are primarily known from isolated remains in Canada. Four well‐preserved fish skulls were recovered in recent years from ammolite mines sampling the Bearpaw Formation of Southern Alberta, and are here referred to Enchodus petrosus Cope, 1874.
Luke E. Nelson, Alison M. Murray, Donald B. Brinkman   +2 more
wiley   +1 more source

Feedforward consequences of isometric contractions: effort and ventilation

Physiological Reports, 2016
AbstractThe onset of voluntary muscle contractions causes rapid increases in ventilation and is accompanied by a sensation of effort. Both the ventilatory response and perception of effort are proportional to contraction intensity, but these behaviors have been generalized from contractions of a single muscle group.
Luu, BL, Smith, JL, Martin, PG, McBain, RA, Taylor, JL, Butler, JE   +5 more
openaire   +3 more sources

Repeatability of corticospinal and spinal measures during lengthening and shortening contractions in the human tibialis anterior muscle [PDF]

, 2012
Elements of the human central nervous system (CNS) constantly oscillate. In addition, there are also methodological factors and changes in muscle mechanics during dynamic muscle contractions that threaten the stability and consistency of transcranial ...
Hortobágyi, Tibor, Tallent Jamie, Tibor Hortobágyi, Howatson, Glyn, Hortobagyi, Tibor; id_orcid, Goodall Stuart, French, Duncan N., St Clair Gibson Alan, French Duncan N., Duncan N French, Alan St Clair Gibson, Tallent, Jamie, St Clair Gibson, Alan, Howatson Glyn, French, Duncan, Goodall, Stuart, Glyn Howatson, Stuart Goodall, Jamie Tallent, Gibson, Alan St Clair, Hortobágyi Tibor   +20 more
core   +2 more sources

Three‐dimensional digital analysis of musteloid masticatory muscle architecture

The Anatomical Record, EarlyView.
Musteloids span an enormous breadth of dietary modes within a single superfamily. In this study, we utilize digital dissection techniques to reconstruct the internal 3D anatomy of muscles within the musteloid feeding apparatus, and explore how dietary specializations might alter the size, orientation, and curvature of fascicles therein.
Cassidy E. Davis, Edwin Dickinson, Madison Manzo, Ashley R. Deutsch, Jillian S. Davis, Michael C. Granatosky, Adam Hartstone‐Rose   +6 more
wiley   +1 more source

Bite force estimates and morphological correlations of jaw muscles in parrots

The Anatomical Record, EarlyView.
Abstract Parrots (Order: Psittaciformes) are renowned for their high bite force (BF) and morphological correlates thereof, including a highly mobile skull and two unique mandibular adductor muscles—m. pseudomasseter and m. ethmomandibularis, with the former being hypothesized to increase force output.
Ana Carolina L. Faillace, Arin Berger, Marcelo Ismar S. Santana, Adam Hartstone‐Rose   +3 more
wiley   +1 more source

Peculiarities of accuracy and stability of muscle continuous isometric contraction. [PDF]

, 2010
Research aim was to establish the peculiarities of control of the accuracy and the stability of continuous isometric muscle contractions. Objectives: 1) to establish and compare effect of visual feedback on the accuracy, stability and muscle activity of ...
Bartkutė, Rasma,
core   +1 more source

Local variation in age‐related cortical expansion within and between cross‐sections of distal human long bones

The Anatomical Record, EarlyView.
Abstract Cortical bone expansion is an age‐related process where, through endosteal resorption and periosteal apposition, cross‐sectional diameter increases while cortical thickness decreases in long bone diaphyses. Local variation has been observed in this process between cross‐sectional locations, but few studies have examined directional variation ...
Gregory J. Wehrman, Alice F. Gooding, Adam D. Sylvester, Dawnie W. Steadman, Benjamin M. Auerbach   +4 more
wiley   +1 more source

Structural Allograft Reconstruction for Chronic Proximal Hamstring Avulsion Yields Significant Functional Improvement, Acceptable Satisfaction, but Limited Return to Preinjury Sport Levels

Arthroscopy, EarlyView.
Purpose To evaluate midterm outcomes of structural allograft reconstruction in patients with chronic proximal hamstring avulsion injuries. Methods This was a retrospective cohort study (minimum 2‐year follow‐up) including patients who underwent allograft surgical reconstruction for proximal hamstring avulsion injuries between 2016 and 2023. The primary
Nicolas Lefèvre, Mohamad K. Moussa, Eugénie Valentin, Yoann Bohu, Antoine Gerometta, Frederic Khiami, Alain Meyer, Olivier Grimaud, Alexandre Hardy   +8 more
wiley   +1 more source