Chap. XIX] 



SUMMARY 



407 



< <; Divisions 



Description 



Fissures 



Ventricles < 



f f f White matter on inside. 



Great longitudi- 

 nal fissure. 

 Transverse fissure. 

 Rolandic. 

 Sylvian. 



Parieto-occipital. 

 Frontal. 

 Parietal. 

 Cerebrum 2 Lobes { Occipital, 



hemi- { I Temporal, 



spheres { i Central. 



Fourth ventricle. 

 Third ventricle. 

 2 lateral ventricles. 

 ^ Fifth ventricle, 

 f Motion. 

 Sensation. 

 Functions { Speech. 

 Hearing. 

 [ Memory and higher functions. 



Motor area — in front of Fissure of Rolando. 



Visual — occipital lobe. 



Auditory — superior part of the temporal 

 Sense areas ] lobe. 



^ ' ^ > anterior part of temporal lobe. 

 I Gustatory] ^ ^ 



Association areas — parts of the cerebral cortex which are 

 not the location of special centres. 



I. Olfactory. 

 II. Optic. 



III. Motor oculi. 



IV. Pathetic. 

 V. Trifacial. 



VI. Abducens. 

 VII. Facial. 

 VIII. Auditory. 

 IX. Glossopharyngeal. 

 X. Pneumogastric. 

 XL Spinal accessory. 

 XII. Hypoglossal. 



Reflex Act — Involuntary activity that is the result of stimulation by 

 motor nerve-fibres. Impulses are transferred from sensory fibres and 

 activate the motor fibres. 



Names of 

 Areas 



Cranial Nerves < 



