THE ANTERIOR VENA CAVA. 



the lateral sinuses in Man (Fig. 386, 5). 3. In some instances, an inferior median 

 sinus, channeled near the free border of the face of the brain, passes behind 

 into the torcular Herophili (Fig. 386, 2). 



Fig. 



SINUSES OF THE DURA MATER AND RADICLES OF THE JUGULAR VEIN OF THE HORSE, SEEN IN 

 A MEDIAN AND LONGITUDINAL SECTION OF THE HEAD. 



i., Atlas ; Ax, axis ; V, third cervical vertebra ; C, nasal septum ; P, pharynx ; E, Eustachian tube ; 

 M, interior maxillary nerve — coinu of the ns hyoideus ; La, tongue; L, larynx; T, trachea; G, 

 submaxillary salivary gland; F, falx cerebri. 1, Sinus of ditto; 2, middle inferior sinus; 3, 

 venae Galeni ; 4, torcular Herophili; 5, small sinuses of the cerebellar cavity ; 6, occipito-atloidean 

 sinus ; 7, spinal sinus ; 8, communicating branch of the cavernous sinuses ; 9, internal maxillary 

 vein receiving above; 10, 10, 10, the pterygoid veins; 11, trunk of the temporal veins; 12,12, 

 jugular vein; 13, posterior auricular vein; 14, occipital vein; 15, radicle of the occipital vein 

 arising from posterior extremity of the subsphenoidal confluent; 16, 16, facial vein. 



The Spinal Sinuses in Particular. — We thus designate in Veterinary 

 Anatomy — and with good reason — two series of venous reservoirs which are found 



