Accession Number:

AD0257427

Title:

A STUDY OF LIVING GAS-FILLED AND FLUID-FILLED SYSTEMS, AND A COMPARISON WITH SIMILAR MECHANICAL SYSTEMS. PART I. LIVING TUBE STUDY

Descriptive Note:

Corporate Author:

HUNTINGTON MEMORIAL HOSPITAL PASADENA CA INST OF MEDICAL RESEARCH

Personal Author(s):

Report Date:

1961-01-16

Pagination or Media Count:

1.0

Abstract:

OBSERVATIONS INDICATE THAT THE SUBMUCOSA OF THE SMALL INTESTINE WHEN STUDIED AS AN ISOLATED SHEATH IS COMPOSED OF INTERLACING, COLLAGENOUS FIBERS WHICH IN THE NEUTRAL AND RELAXED STATE CONSTITUTE HELICAL COILS RUNNING AT APPROXIMATELY 45 DEGREE ANGLES WITH THE LONGITUDINAL AXIS OF THE SMALL INTENTINE. Half of the collagenous strands run clockwise and half run counterclockwise. Serial sections indicate that the braid is not a simple one- or two-layered braid as described by Mall and other early workers, but is braided in depth. In the dog the sheath is probably 18 to 24 layers in thickness. Proof of the nature of the crossing designs of the fibers can be easily seen in whole mounted sections of cleaned submucosa under low power microscope, but the appreciation of the braid in depth requires frozen section of the flattened sheath and aniline blue stain with sections taken progressively from one side of the thin sheath wall to the other. Author

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Distribution Statement:

APPROVED FOR PUBLIC RELEASE