Biomechanical and neurological response of the spinal cord of a puppy to uniaxial tension.
An in-vivo experimental method was developed to measure the stress-strain relationship of a spinal cord segment of anesthetized puppies. A pseudo Young's modulus was defined for the linear region followed by a nonlinear rheological behavior of finite strain. Both the sensory response and motor function of the puppies were fully recovered within the 5 days after the spinal cord segment in the first lumbar region was elongated once by 50 percent or less. The usefulness of the in-vivo experiments was further elaborated by demonstrating the large artifacts that could be associated in an in-vitro experiment.
D000818:Animals; D001696:Biomechanical Phenomena; D004285:Dogs; D008954:Models, Biological; D013116:Spinal Cord / Q000502:physiology*; D013718:Tensile Strength