CONTEXTS. XXI 



CHAPTER XVII. 



DEVELOPMENT OF THE CIRCULATORY APPARATUS. 



PA.GK 



First, or vitelline circulation Area vasculosa Sinus terminalis Vitelline 

 circulation of fish Arrangement of arteries and veins in body of fetus 

 Second, or placental circulation Omphalo-mesenteric arteries and vein 

 Circulation of the umbilical vesicle Of the allantois and placenta Umbi- 

 lical arteries and veins Third, or adult circulation Portal and pulmonary 

 systems Development of the arterial system Development of the venous 

 system Changes in the hepatic circulation Portal vein Umbilical vein 

 Ductus venosus Changes in the cardiac circulation Division of heart 

 into right and left cavities Aorta and pulmonary artery Ductus arteriosus 

 Foramen ovale and Eustachian valve Changes in circulation at the 

 period of birth ........... 665-686 



CHAPTER XVIII. 



DEVELOPMENT OF THE BODY AFTER BIRTH. 



Condition of fcetus at birth Gradual establishment of respiration Inactivity 

 of the animal functions Preponderance of reflex actions in the nervous 

 system peculiarities in the action of drugs on infant Difference in relative 

 size of organs, in infant and adult Withering and separation of umbilical 

 cord Exfoliation of epidermis First and second sets of teeth Subsequent 

 changes in osseous, muscular and tegumentary systems, and general devel- 

 opment of -the body .......... 687-690 



2* 



