EF* EF*EF 2 EFl EH 



EM 



B 



af-af'- ta af 1 



Fig. 46, A. — AF. Afferent branchial vessel. AR. Anterior cerebral artery. CA, 

 CP. Anterior and posterior commissural vessel. EF 1 , EF-, EF 3 , EF 4 . Efferent 

 branchial vessels of the first, second, third, and fourth branchial arches. EH. Ef- 

 ferent hyoid vessel. EM. Efferent mandibular vessel. G. Glomus. O. Aorta. 

 P. Pronephros. RT. Truncus arteriosus. S. Segmental duct. (Alter Marshall.) 



B. — AFi, AF2, AF 3 . Afferent branchial vessels. AU. Auricle. CV. Cuvierian 

 vein. EFi, EF^, EF 3 , EF 4 . Efferent branchial vessels. EH. Efferent hyoid 

 vessel. EM. Efferent mandibular vessel. G. Glomus. HV. Hepatic veins. 

 MV. Mandibular vein. MY. Hyoidean vein. TA. Truncus arteriosus. V. Ven- 

 tricle. (After Marshall.) 



152 



