Related Experiment Video
Updated: Feb 9, 2026

Isolation of Giant Lampbrush Chromosomes from Living Oocytes of Frogs and Salamanders
Published on: December 5, 2016
Experimental morphology of the feeding mechanism in salamanders
Stephen M Reilly1, George V Lauder1
1School of Biological Sciences, University of California, Irvine California 92717.
Abstract:
The subarcualis rectus I muscle (SAR) in the feeding mechanism of four tiger salamanders (Ambystoma tigrinum) was removed early in ontogeny and these individuals were allowed to complete metamorphosis. This procedure resulted in postmetamorphic tiger salamanders which differed from control individuals in the size (and thus force generating capacity) of the SAR muscle. The experimental manipulation of muscle ontogeny allowed a test of previous hypotheses of SAR function in postmetamorphic individuals. Multivariate analysis of variance for kinematic variables measured from high-speed video records of feeding revealed that experimentally modified tiger salamanders did not protract the hyobranchial apparatus or project the tongue from the mouth during feeding. Removal of the SAR muscle resulted in significantly reduced hyobranchial elevation in the buccal cavity and reduced maximum tongue projection distance.
Related Concept Videos
Microbial Morphologies
Reaction Mechanisms
For instance, the decomposition of ozone appears to follow a mechanism with two steps:
Enteral Nutrition I: Orogastric and Nasogastric Feeding
Orogastric (OG) and nasogastric (NG) feeding are two standard methods used for enteral nutrition. Enteral nutrition is often preferred over...
Enteral Nutrition II: Nasointestinal and Gastrostomy Feeding
Nasointestinal Feeding
Nasointestinal feeding involves placing a tube...
Mechanical Protein Functions
Experimental Determination of Chemical Formula

