XX 



CONTENTS 



Parts Derived from the Hindbrain 



The Cerebellum 886 



Lobes and Fissures of the Cerebel- 

 lum 887 



Internal Structure of Cerebellum . 890 

 Isolated Gray Masses or Nuclei 



of the Cerebellum . . . .891 

 The Cerebellar Peduncles . . . 891 

 The Fibres Proper of Cerebellum . 893 

 Microscopic Appearance of Cere- 

 bellar Cortex 893 



Weight of the Cerebellum . . . 895 



The Midbrain 895 



External Morphology 895 



Corpora Quaclrigemina .... 895 



Superior Brachium 896 



Internal Geniculate Body . . . 896 



Crura Cerebri 897 



Taenia Pontis 897 



Tractus Peduncularis Transversus 897 

 Internal Structure of Midbrain . . . 897 

 The Aqueduct and Central Aque- 

 duct Gray 897 



Substantia Nigra or Intercalatum 898 



Corpora Quadrigemina .... 899 



Tegmentum 899 



Red Nucleus or Rubrum . . . 899 



Fountain Decussation .... 901 



Crusta or Pes 902 



Summary of the Gray Masses in the 



Midbrain 902 



Deep Origin of Cranial Nerves Arising in 



the Midbrain 902 



Trochlear Nerve Nucleus . . . 902 



Oculomotor Nerve Nucleus . . 902 



Parts Derived from the Forebrain . . . 903 



External Morphology 904 



The Thalami 904 



The Pineal Body 907 



Third Ventricle 909 



External Morphology of the Optic 



Portion of the Hypothalamus . 910 



Tuber Cinereum 910 



Pituitary Body or Hypophysis . 910 

 Lamina Terminalis or Terma . . 911 

 Optic Tract and its Central Con- 

 nections . . , 911 



Optic Chiasm 911 



The Cerebral Hemispheres 913 



External Morphology . . . . 913 

 Configuration of Each Cerebral Hemi- 

 sphere 916 



Cerebral Fissures and Gyres . . 916 



Cerebral Lobes and Fissures . . 917 



The Interlobar Fissures . . . 918 

 Development of the Island of Reil 



and Sylvian Cleft . . . . 918 



Frontal Lobe 920 



Parietal Lobe 923 



Occipital Lobe 925 



Temporal Lobe 925 



The Island of Reil . . . . 926 

 The Rhinencephalon or Olfactory 



Lobe 927 



Internal Configuration of the Cerebral 



Hemispheres 932 



The Cortex 933 



The Corpus Callosum .... 934 

 The Lateral Ventricles . . . .937 



The Choroid Fissure or Rima . . 940 

 The Choroid Plexus of the Lateral 

 Ventricles and Velum Interposi- 



tum 941 



The Hippocampus and Fornix . . 943 

 The Septum Lucidum .... 946 

 The Anterior Commissure . . . 947 

 Gray Masses in the Cerebral Hemi- 

 sphere 947 



Intimate Structure of the Cerebral 

 Cortex and its Special Types in Dif- 

 ferent Regions 952 



Special Types of Gray Substance . . 954 



Summary of the Cerebral Fibre System 955 



The Olfactory Pathways .... 959 



Weight of the Brain 960 



Cortical Localization of Function. 



Motor Area 



Sensor Area 



Language Area . . ... 



Association Areas 



Craniocerebral Topography .... 



961 

 962 

 962 

 963 

 964 



The ^leninges or Meningeal Membranes of the 

 Brain . 



Dissection 966 



The Dura of the Brain 966 



Processes of the Dura .' . . . . 968 



Structure of the Dura 969 



The Arachnoid of the Brain 970 



Subarachnoid Space 971 



Structure 972 



The Arachnoid Villi or Pacchionian Bodies 972 



The Pia of the Brain 974 



Velum Interpositum or the TeLa Chor- 



oidea Superior 974 



THE CRAXIAL NEEVES. 

 The First or Olfactory .Verves. 

 Applied Anatomy ....... 



The Second or Optic Xerve. 



Optic Chiasm 



Applied Anatomy 



The Third or Oculomotor Xerve. 

 Applied Anatomy 



The Fourth or Trochlear Xerve. 

 Applied Anatomy . . 



977 



977 

 978 



980 



98 L 



The Fifth, Trigeminal, or Trifacial Xerve. 



Gasserian or Semilunar Ganglion ... 981 



Ophthalmic Nerve 982. 



The Superior Maxillary Nerve .... 985 



The Inferior Maxillary or Mandibular Nerve 990' 



Surface Marking 993 



Applied Anatomy 994- 



The Sixth &r Abducent Xerve. 



Applied Anatomy . 997' 



The Seventh or Facial Xerve. 



Applied Anatomy 1002' 



The Eighth or Acoustic Xerre. 



The Cochlear Nerve- 



The Vestibular Nerve- 



Applied Anatomy 



1003 

 1003 

 1004 



The Xinth or Glossopharyngeal Xerve. 



The Superior or Jugnlar Ganglion . , . 1005 



The Inferior or Petrous Ganglion . . . 1005 



The Gustatory Path, 1006 



Applied Anatomy 1006 



The Tenth, Vagus, or Pneumogastric Xerve. 



The Ganglion of the Root or the Jugular 



Ganglion 1008 



The Ganglion of the Trunk or the Inferior 



Ganglion 1008 



Applied Anatomy 1011 



The Eleventh or Spinal Accessory Xerve. 



The Bulbar or Vagal Accessory Part . . . 1012 



The Spinal Portion 1 



Applied Anatomy 1012, 



