1406 



A MANUAL OF ANATOMY 



anterior pillar of the fornix and the front part of the optic thalamus. 

 The lateral ventricle of either side consists of a body and three 

 cornua — anterior, middle or descending, and posterior. 



The body extends from the foramen of Monro to the level of the 

 splenium of the corpus callosum. The anterior cornu is situated 

 in front of the foramen of Monro, and curves forwards and out- 

 wards into the frontal lobe. The middle or descending cornu 



Genu of 

 Corpus Callosum 



^Anterior Cornu of Lateral 



Ventricle 



^^Fifth Ventricle (within 



^^ _^ ^^_ ' Septum Lucidum) 



Caudate Nucleus 



Left Foramen of 

 Monro 



Taenia Semicircu- 

 laris 



Optic Thalamus . 



Choroid Plexus of 



Body of Lateral 



Ventricle 



Choroid Plexus of 



Descending 



Cornu 



-Posterior Cornu of 

 Lateral Ventricle 



Bulb of Posterior Cornu 



(due to Fibres of the 



Forceps Major) 



Cerebellum 



Fig. 591. — The Lateral Ventricles of the Cerebrum (after 



HiRSCHFELD AND LeVEILLE). 



enters the temporal lobe, and describes a remarkable curve as it 

 sweeps round the posterior extremity of the optic thalamus. Its 

 direction is backwards, outwards, downwards, forwards, and finally 

 inwards to a point about i inch from the temporal pole. The 

 posterior cornu curves backwards and inwards into the occipital 

 lobe. 

 The body of the lateral ventricle presents a roof, an inner wall. 



