xu 



CONTENTS 



PAQB 



External Iliac Vein 683 



Superficial Veins of Abdominal 



Wall 683 



Veins of the Lower Extremity. . . 683 

 Saperfijial Veins of Lower Ex- 

 tremity 684 



Deep Veins of Lower Extremity 686 

 Morphogenesis and Variations of 



the Veins 690 



PAGE 



a. Vena Cava Superior and 



Tributaries 690 



h. Vena Cava Inferior and 



Tributaries 693 



c. Portal System 694 



The Foetal Circulation 695 



References 696 



SECTION VI 

 THE LYMPHATIC SYSTEM 



By Eliot R. Clark, A.B., M.D. 



I . General Anatomy of the Lymphatic 



System 697 



1. Lymphatic Capillaries 697 



2. Lymphatic Vessels 702 



3. Lymphoid Organs 704 



4. Development of the Lym- 



phatic System 706 



II. Special Anatomy of the Lymphatic 



System 709 



A. Lymphatics of the Head and 



Neck 709 



1 . Superficial Nodes of Head and 



Neck 709 



2. Lymphatic Vessels of the Face 712 



3. Deep Lymphatic Nodes of the 



Head and Neck 714 



4. Deep Lymphatic Vessels of 



the Head and Neck 714 



B. Lymphatics of the Upper Ex- 



tremity 719 



1. Lymphatic Nodes of the Up- 



per Extremity 719 



2. Lymphatic Vessels of the Up- 



per Extremity 721 



C. Lymphatics of the Thorax 723 



1. Superficial Lymphatic Vessels 



of the Thorax 723 



2. Lymphatic Nodes of the 



Thorax 724 



3. Deep Lymphatics of the Tho- 

 rax 725 



Thoracic Duct 726 



Right Collecting Ducts 728 



Deep Lymphatic Vessels 728 



D. Lymphatics of Abdomen and 



Pelvis 730 



1. Lymphatic Nodes of the Ab- 



domen and Pelvis 730 



2. Lymphatic Vessels of the Ab- 



dominal Walls 733 



3. Visceral Lymphatic Vessels of 



the Abdomen and Pelvis . . . 733 

 Lymphatics of Ahmentary 



Tract 733 



Lymphatics of Excretory Or- 

 gans • • ■ 737 



Lymphatics of Reproductive 

 Organs 742 



E. Lymphatics of the Lower Ex- 



tremity 746 



1. Lymphatic Nodes of the 



Lower Extremity 746 



2. Lymphatic Vessels of the 



Lower Extremity 748 



References 750 



SECTION VII 

 THE NERVOUS SYSTEM 



By Irving Hardesty, A.B., Ph.D. 



General Considerations 751 



Central Nervous System 770 



I. Spinal Cord 771 



External Morphology 771 



Intornal Struct ure 775 



II. Hrain or Enroplialon 792 



CJeneral Topography 793 



Rhombencephalon 799 



1. Medulla Oblongata 799 



2. Pons Varolii 804 



3. Cerebellum 804 



Cerebrum 833 



1. Mesencephalon (Mid-brain). 833 



2. ProHoncc'plialon (Fore-brain) 843 



A. Diencf!plial()n(lntcr-brain) 843 



B. Telon(;ephalon(End-brain) 847 



III. General Summary of Principal 



Conduction Paths of Nervous 



System 895 



IV. Meninges 908 



The Peripheral Nervous System 924 



I. Cranial Nerves 927 



Olfactory Nerves 929 



Optic Nerves 930 



Oculo-motor Nerves 931 



Trochlear Nerves 933 



Abducens Nerves 934 



Trigeminal Nerves 934 



Masticator Nerves 942 



Facial Nerves 943 



Glosso-palatine Nerves 946 



Vestibular Nerves 949 



Cochlear Nerves 950 



Glosso-pharyngeal Nerves 951 



Hypoglossal Nerves 952 



Vagus Nerves 954 



Spinal Accessory Nerves 958 



Gangliated Cephalic Plexus 959 



II. Spinal Nerves 964 



A. Posterior Primary Divisions. . . 970 



