Lung structure at preterm and term birth

When lung development is not interrupted by premature birth and unaffected by genetic or environmental disturbances, all components develop with complex control to form a functional organ with a predictable timeline during fetal development. In this chapter we describe the relationship between morphological development and function in both physiological and pathological conditions in human lung development. Tree-like growth of the lung begins during the first few weeks postconception, with the embryonic stage characterized by branching morphogenesis in both the airways and blood vessels, separately in the left and right lung buds, which appear near day 26 postcoitus (p.c.). Branching continues through the embryonic stage, with proliferation of mesenchymal and epithelial cells and apoptosis near branch points and in the areas of new formation. The pseudoglandular stage (weeks 5–17 p.c.) is characterized by accelerated cellular proliferation and airway and vascular branching, with epithelial differentiation in proximal and distal airways. Further epithelial differentiation, angiogenesis of the parenchymal capillary network, and the first formation of the air–blood barrier characterize the canalicular stage (16–26 weeks p.c.), just before the completion of branching morphogenesis (saccular stage, weeks 24–38 p.c.) and the start of alveolarization (week 36 through adolescence).

Birth and mortality statistics of the Virgin Islands of the United States. 1901-1919.

On t.-p., seal of Department of the navy, Bureau of medicine & surgery.

Delayed birth registration practices : vital registration areas of the United States.

Item 508.

First things and last : the story of birth and death certificates.

Cover title.

A topographical and historical description of the country of Southampton : containing an account of its towns, seats, antiquities, churches, public edifices, scenery, and residences of the nobility, gentry, &c. : accompanied with biographical notices of eminent and learned men to whom this county has given birth /

Includes bibliographical references.

Augustan art; an exhibition commemorating the bimillennium of the birth of Augustus, New York, January 4, 1939, through February 19.

"This handbook of the exhibition has been written by Gisela M.A. Richter ... except the chapter on Minor arts and painting, of which Christine Alexander ... is the writer."--Pref.

A visit to my birth-place /

Mode of access: Internet.

Scientific manpower from abroad; United States scientists and engineers of foreign birth and training

Includes bibliography.

The birth of the Bill of rights, 1776-1791.

Mode of access: Internet.

Virgin birth, a natural law /

Includes bibliographical references.

Robert E. Lee, centennial celebration of his birth held under the auspices of the University of South Carolina on the nineteenth day of January 1907.

"Address, 'Lee, the college president, by Dr. Edward S. Joynes, formerly of General Lee's faculty": p. 19-36.

The birth of Yugoslavia,

"Portions of this book which deal with Yugoslav-Albanian affairs have appeared in the Fortnightly review and, expanded from there, in a volume entitled A difficult frontier.

The facts of life: from birth to death

Mode of access: Internet.

A memorial service for the four hundredth anniversary of the birth of the Swiss reformer, Ulric Zwingli.

Mode of access: Internet.

A study of the birth weight of calves /

"Publication authorized December 19, 1918"--T.p.