THE BASAL GANGLIA OF THE CEREBRUM. 



80 3 



with the aid of the sphygmograph, acute decubitus on the paralyzed side, abnor- 

 malities of the nails, the hair, the skin, acute inflammation of the joints, par- 

 ticularly the shoulder- joint. Subsequently, contractures occur in the paralyzed 

 muscles. In individual cases there may be, besides, cutaneous anesthesia, occa- 



Gyrus fornicatus 

 Corpus callosum. 



Septum lucidum. 



Columnae fornicis.-^, 



Corpus striatum. 



Stria terminalis. 

 Thalamus opticus. 

 Pulvinar. 



Brachium cpnjunc 



tivum posticum. 



Pedunculus cerebri. 



(ad corpora 

 quadrige- 

 mina. 

 .. .- ad medullam 

 cerebelh oblongatam 



\ad pontem. 



Cornu anticum. 



Caput nuclei caudati. 



Capsula interna 

 (anterior limb). 



Capsula externa. 

 Island of Reil. 

 Nucleus lentiformis. 

 Claustrum. 



Capsula interna 

 (posterior limb). 

 Thalamus opticus. 



Corpus genicula- 

 tum mediale. 



Cauda nuclei 

 caudati. 



Hippocampus. 



~ Calcar avis. 



Ala cinereae. 



Obex 



Funiculus gracilis. 



FIG. 263. Cerebrum of Man. On the right the hemisphere is removed by a horizontal section. 4, Trochlear 

 nerve; 8, auditory nerve; 6, origin of the abducens nerve. 



sionally also impairment of sense-activity on the paralyzed side; both if the pos- 

 terior segment of the internal capsule is affected. Generally hemiplegia and 

 hemianesthesia exist together. 



The optic thalamus is connected with all of the sense-centers. 

 As it is connected with the cerebral cortex by fibers, principally as a 



