Cantitate/Preț
Produs

How the Heart Develops: Colloquium Series on the Cell Biology of Medicine

Autor Donald A. Fischman
en Limba Engleză Paperback – 30 noi 2009
With possible exception of the atomic clock, the heart may be the most perfect machine ever devised. How it develops from a simple embryonic tube is a fascinating story of biology and lends a great deal of insight into the source of heart defects that affect children and adults alike.Central to this entire lecture is the fact that the fetus resides in an aquatic environment. Oxygenated blood arrives from the placenta and deoxygenated returns to the placenta. The lungs play no role in delivering oxygen or removing carbon dioxide to or from the circulation. Thus, the fetus mainly (but not exclusively) requires a three-chambered heart rather than the fourchambered heart that we are all familiar with. This resembles fish circulation in which blood leaves the heart into an aortic sac from which emanate the aortic arches that deliver blood to the gills, where it is oxygenated and CO2 is removed. Blood then goes to the dorsal aortae for nourishing the body tissues. In a fish there is no need for a four-chambered heart, since fish do not use lungs to aerate the blood or remove CO2. Although the fetus lacks gills and still develops a four-chambered heart, much of fetal circulatory physiology depends on a "quasi-three-chambered circulation" that bypasses the pulmonary circulation. Upon birth, this "aquatic" circulation must change within minutes to permit lung function. The topics to follow trace how this circulation develops and how it changes upon birth.Table of Contents: Fetal and Embryonic Hematopoiesis / Formation of the Precardiac Mesoderm and Fate Mapping During Gastrulation / Tubular Heart / Cardiac Looping / Pericardial Cavity / Endocardial Cushions / Atrial Septation / Ventricular Septation / Partitioning of the Bulbus Cordis and Truncus Arteriosus / Conducting System / Cell Lineages During Heart Development / Circulation at Term and Changes upon Birth / Recommended Readings
Citește tot Restrânge

Din seria Colloquium Series on the Cell Biology of Medicine

Preț: 20157 lei

Nou

Puncte Express: 302

Preț estimativ în valută:
3859 4011$ 3199£

Carte tipărită la comandă

Livrare economică 05-19 februarie 25

Preluare comenzi: 021 569.72.76

Specificații

ISBN-13: 9781615040001
ISBN-10: 1615040005
Pagini: 80
Dimensiuni: 191 x 235 x 4 mm
Greutate: 0.15 kg
Ediția:New.
Editura: Morgan & Claypool
Seria Colloquium Series on the Cell Biology of Medicine