Journal article
Geometry and kinematics of dog ribs
Journal of applied physiology (1985), Vol.67(2), pp.707-712
08/01/1989
DOI: 10.1152/jappl.1989.67.2.707
PMID: 2793673
Abstract
Five anesthetized supine beagle dogs were scanned using a fast, multislice computed tomographic X-ray technique to determine the orientation of the ribs at total lung capacity (TLC) and functional residual capacity (FRC). A plane was fit to each rib using a coordinate system in which the z-axis was aligned approximately cephalocaudally and the x-z-plane coincided with the sagittal midplane. The orientation of each plane was described by “pump-handle” and “bucket-handle” angles. The ribs rotated downward and inward during a passive deflation of the lungs from TLC to FRC. Rib displacement was not uniform: bucket-handle motion was predominant in the upper ribs, and pump- and bucket-handle motions were equal in the lower ribs. The change in the pump-handle angles between TLC and FRC was approximately 6 degrees for ribs 3–8, and the change in the bucket-handle angles decreased with rib number from 16 degrees for rib 3 to 6 degrees for rib 8. Rib shape was described by fitting an ellipse to the data for each rib; the ribs became larger and more circular with increasing rib number.
Details
- Title: Subtitle
- Geometry and kinematics of dog ribs
- Creators
- S. S. Margulies - Division of Thoracic Diseases Research, Mayo Clinic, Rochester, Minnesota 55905.J. R. Rodarte - Division of Thoracic Diseases Research, Mayo Clinic, Rochester, Minnesota 55905E. A. Hoffman - Mayo Clinic
- Resource Type
- Journal article
- Publication Details
- Journal of applied physiology (1985), Vol.67(2), pp.707-712
- DOI
- 10.1152/jappl.1989.67.2.707
- PMID
- 2793673
- ISSN
- 8750-7587
- eISSN
- 1522-1601
- Language
- English
- Date published
- 08/01/1989
- Academic Unit
- Roy J. Carver Department of Biomedical Engineering; Radiology; Internal Medicine
- Record Identifier
- 9984318685402771
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