Jason B Ramsay
Overview
Explore the profile of Jason B Ramsay including associated specialties, affiliations and a list of published articles.
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10
Citations
67
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Recent Articles
1.
Richard B, Spence M, Rull-Garza M, Roba Y, Schwarz D, Ramsay J, et al.
Philos Trans R Soc Lond B Biol Sci
. 2023 Oct;
378(1891):20220539.
PMID: 37839454
Intra-oral food processing, including chewing, is important for safe swallowing and efficient nutrient assimilation across tetrapods. Gape cycles in tetrapod chewing consist of four phases (fast open and -close, and...
2.
Petersen J, Ramsay J
J Exp Biol
. 2020 Jul;
223(Pt 18).
PMID: 32709626
Fish fin rays (lepidotrichia) are typically composed of paired and segmented flexible structures (hemitrichia) that help support and change the shape of the fins to affect water flow. Yet, marine...
3.
Laurence-Chasen J, Ramsay J, Brainerd E
J Exp Biol
. 2019 Jul;
222(Pt 13).
PMID: 31292213
Many species of fish process their prey with cyclic jaw motions that grossly resemble those seen in mammalian mastication, despite starkly different tooth and jaw morphologies. The degree of similarity...
4.
Ramsay J, Wilga C
J Exp Biol
. 2017 Aug;
220(Pt 21):4047-4059.
PMID: 28807935
Suction feeding in teleost fish is a power-dependent behavior, requiring rapid and forceful expansion of the orobranchial cavity by the hypobranchial and trunk muscles. To increase power production for expansion,...
5.
Fournier K, Couret J, Ramsay J, Caulkins J
Anat Sci Educ
. 2017 Jan;
10(5):409-422.
PMID: 28135034
Large enrollment foundational courses are perceived as "high stakes" because of their potential to act as barriers for progression to the next course or admittance to a program. The nature...
6.
Ramsay J, Wilga C, Tapanila L, Pruitt J, Pradel A, Schlader R, et al.
J Morphol
. 2014 Sep;
276(1):47-64.
PMID: 25181366
The recent reexamination of a tooth-whorl fossil of Helicoprion containing intact jaws shows that the symphyseal tooth-whorl occupies the entire length of Meckel's cartilage. Here, we use the morphology of...
7.
Jaws for a spiral-tooth whorl: CT images reveal novel adaptation and phylogeny in fossil Helicoprion
Tapanila L, Pruitt J, Pradel A, Wilga C, Ramsay J, Schlader R, et al.
Biol Lett
. 2013 Mar;
9(2):20130057.
PMID: 23445952
New CT scans of the spiral-tooth fossil, Helicoprion, resolve a longstanding mystery concerning the form and phylogeny of this ancient cartilaginous fish. We present the first three-dimensional images that show...
8.
Gerry S, Ramsay J, Dean M, Wilga C
Integr Comp Biol
. 2011 Jun;
48(2):272-82.
PMID: 21669790
Many studies of feeding behavior have implanted electrodes unilaterally (in muscles on only one side of the head) to determine the basic motor patterns of muscles controlling the jaws. However,...
9.
Dean M, Ramsay J, Schaefer J
Zoology (Jena)
. 2008 Jan;
111(2):123-34.
PMID: 18226886
The dental anatomy of elasmobranch fishes (sharks, rays and relatives) creates a functional system that is more dynamic than that of mammalian dentition. Continuous dental replacement (where new teeth are...
10.
Ramsay J, Wilga C
J Morphol
. 2007 Apr;
268(8):664-82.
PMID: 17458888
The teeth of white-spotted bamboo sharks (Chiloscyllium plagiosum) are used to clutch soft-bodied prey and crush hard prey; however, the dual function is not evident from tooth morphology alone. Teeth...