ArticleJournal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology2007
Muscle function in animal movement: passive mechanical properties of leech muscle.
Article in Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
What it found
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Who cites it
8 citing papers in PubMed, 17 citations in OpenAlex.
- Mechanism of ammonia excretion in the freshwater leech Nephelopsis obscura: characterization of a primitive Rh protein and effects of high environmental ammonia.American journal of physiology. Regulatory, integrative and comparative physiology · 2015Article
- Experimental Investigation on the Morphology and Adhesion Mechanism of Leech Posterior Suckers.PloS one · 2015Article
- Biological clockwork underlying adaptive rhythmic movements.Proceedings of the National Academy of Sciences of the United States of America · 2014Article
- Mechanisms underlying rhythmic locomotion: interactions between activation, tension and body curvature waves.The Journal of experimental biology · 2012Article
- Serotonin modulates muscle function in the medicinal leech Hirudo verbana.Biology letters · 2011Article
- Mechanisms underlying rhythmic locomotion: dynamics of muscle activation.The Journal of experimental biology · 2011Article
- Mechanisms underlying rhythmic locomotion: body-fluid interaction in undulatory swimming.The Journal of experimental biology · 2011Article
- Leech locomotion: swimming, crawling, and decisions.Current opinion in neurobiology · 2007Review
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
Abstract
We investigated passive properties of leech body wall as part of a larger project to understand better mechanisms that control locomotion and to establish mathematical models that predict such dynamical behavior. In tests of length-tension relationships in 2-segment-long preparations of body wall through step-stretch manipulations (step size = 1 mm), we discovered that these relationships are nonlinear, with significant hysteresis, even for the relatively small changes in length that occur during swimming. We developed a mathematical model comprising three nonlinear springs, two in series with nonlinear dashpots that describe well the tension statics and dynamics for step-stretch experiments. This model suggested that body wall dynamics are slow enough to be neglected when predicting the tension generated by imposed sinusoidal length changes (about +/-10% of nominal) at 1-3 Hz, mimicking swimming. We derived a static model, comprising one nonlinear spring, which predicts sinusoidal data accurately, even when preparations were exposed to serotonin (0.1-10 microM). Preparations bathed in saline-serotonin had significantly reduced steady-state and peak tensions, without alterations in tension dynamics. Anesthetizing preparations (8% ethanol) reduced body wall tension by 77%, indicating that passive tension in the obliquely striated longitudinal muscles of leeches results primarily from a resting tonus.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.