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RICHARD E. SCAMMON, PH.D.; WILLIAM H. RUCKER, B.S.

Am J Dis Child. 1921;21(6):552-564.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

In the fortnight following birth, the form and dimensions of the thorax undergo a series of peculiar changes which are dependent on a number of different factors. One of these changes, the increase in the horizontal circumference of the chest accompanying the first inspiration, is well known, but others, which are less marked and more variable, have apparently passed unnoticed. The following account of the changes in the form of the thorax of the new-born is based on measurements of the thoraces of late fetuses and full term still-born children, on observations of living infants on the first, third, fifth, seventh, tenth and twelfth days after birth, and on a number of observations on the horizontal chest circumference immediately before and after the first inspiration. The observations on the dimensions of the fetal thorax were made by Dr. L. A. Calkins as a part of an extensive study on the . . . [Full Text PDF of this Article]

Author Affiliations
MINNEAPOLIS

Footnotes
Received for publication Jan. 28, 1921.

This study was carried out with aid of a grant from the Research Fund of the University of Minnesota.

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