Results 71 to 80 of about 7,782 (197)

The evolution of muscle spindles

Experimental Physiology, Volume 110, Issue 10, Page 1401-1421, October 1, 2025.
Abstract Muscle spindles are stretch‐sensitive mechanoreceptors found in the skeletal muscles of most four‐limbed vertebrates. They are unique amongst sensory receptors in the ability to regulate their sensitivity by contraction of the intrafusal muscle fibres on which the sensory endings lie.
Robert W. Banks, Uwe Proske
wiley   +1 more source

Hepatozoon cf. terzii (Sambon & Seligman, 1907) infection in the snake Boa constrictor constrictor from north Brazil: transmission to the mosquito Culex quinquefasciatus and the lizard Tropidurus torquatus

Parasite, 2004
Specimens of Hepatozoon-infected Boa constrictor constrictor were obtained from localities in Pará State, north Brazil. Gametocytes in erythrocytes of the peripheral blood measured 10 x 2.5-16.2 x 3.7 µm.
Paperna I., Lainson R.
doaj   +1 more source

Surface Topography and Ultrastructure of the Spectacular Cells in the Eyes of Land and Sea Snakes (Squamata, Reptilia): Functional Adaptations of Micro‐Ornamentation

Journal of Morphology, Volume 286, Issue 9, September 2025.
ABSTRACT Although the surface micro‐ornamentation of the scales within the skin of snakes has been the subject of many previous studies, there has been little work done on the spectacle, a protective (keratinised) goggle separated from the underlying cornea by a sub‐spectacular space. The surface ultrastructure of the “Oberhäutchen” of the spectacle is
H. Barry Collin, Myoung Hoon Ha, Alizee Wagner, Megan Folwell, Nathan Dunstan, Jenna Crowe‐Riddell, Shaun P. Collin   +6 more
wiley   +1 more source

Reduced foraging in the presence of predator cues by the Black Spiny-tailed Iguana, Ctenosaura similis (Sauria: Iguanidae) [PDF]

Phyllomedusa: Journal of Herpetology, 2010
The presence of a predator may have direct and indirect effects on the behavior of the prey. Although altered behavior may help prey avoid predators, it also can have a potential impact on critical activities such as foraging.
Vincent R. Farallo, Mahmood Sasa, Dennis K. Wasko, Michael R. J. Forstner   +3 more
doaj   +2 more sources

Tyzzeria boae n. sp., (Apicomplexa: Eimeriidae), a New Coccidium from the Kidney of the snake Boa constrictor constrictor (Serpentes: Boidae)

Memorias do Instituto Oswaldo Cruz, 1994
A new species of Tyzzeria is described from the kidney of the snake Boa constrictor constrictor Linnaeus, from the State of Pará, north Brazil. Oocysts from the coacal contents matured in eight days, at approximately 24°C. They measured 19.0 x 18.0 (15.0
Ralph Lainson, Ilan Paperna
doaj   +1 more source

The primary structure of three hemoglobin chains from the indigo snake (Drymarchon corais erebennus, Serpentes): First evidence for αD chains and two β chain types in snakes [PDF]

, 2002
The hemoglobin of the indigo snake (Drymarchon corais erebennus, Colubrinae) consists of two components, HbA and HbD, in the ratio of 1:1. They differ in both their alpha and beta chains.
Abbasi A., Abbasi A., Begg G., Bonilla G.O., Braunitzer G., Brown J.L., Cadle J.E., Chapman B.S., De Smet W.H.O., Focesi, Focesi, Friedman M., Fushitani K., Hewick R.M., Hiebl I., Kleinschmidt T., Lottspeich F., Matsuura M.S.A., Matsuura M.S.A., Naqui S., Oberthuer W., Oyama S. Jr., Ruecknagel K.P.   +22 more
core   +1 more source

The Derivation of the Cells of the Epidermal Strata of the Boa Constrictor (Constrictor Constrictor)

Journal of Investigative Dermatology, 1974
The epidermis of squamate reptiles is generated and shed discontinuously. Multiple cornified strata which are histologically, ultrastructurally, biochemically, biophysically, and developmentally distinct are formed sequentially from cells forced out of the germinal stratum.
Downing, Stephen W., Roth, Sanford I.
openaire   +2 more sources

Evaluation of Rapid DNA Extraction Methods to Better Enable Point‐of‐Use Environmental DNA Detection

Environmental DNA, Volume 7, Issue 4, July–August 2025.
We investigated the most effective rapid DNA extraction methods for use in point‐of‐use eDNA detection. We found that two extraction solutions with short heating steps led to highest yield of eDNA from filters with spiked grass carp gill cells. ABSTRACT Recent developments in molecular testing have created the opportunity for biologists and managers to
Melisa E. Kozaczek, Stephen F. Spear, Tyler J. Untiedt, Paul Albosta, Caden Jungbluth, Jared J. Homola, Elliott P. Barnhart, Christopher M. Merkes   +7 more
wiley   +1 more source

Doença do corpúsculo de inclusão e espondilite por Salmonella sp. em uma Boa constrictor constrictor

Pesquisa Veterinária Brasileira
RESUMO: Doença do corpúsculo de inclusão (IBD) é uma enfermidade caracterizada por corpúsculos intracitoplasmáticos em diversos tecidos, principalmente no sistema nervoso central, responsável pelos principais sinais clínicos atribuídos à doença que ...
Isabela Hardt, Maylla G. Gava, Jeanne S. Paz, Eduardo L.F. Silva, Tayse D. Souza, Flavia F. Jabour, Flaviana L.G. Leite, Mayra C. Flecher   +7 more
doaj   +1 more source

Spartan Daily, December 12, 1952 [PDF]

, 1952
Volume 41, Issue 55https://scholarworks.sjsu.edu/spartandaily/11802/thumbnail ...
San Jose State University, School of Journalism and Mass Communications
core   +1 more source