148 Neurological Technique 



C. ISTHMUS RHOMBENCEPHALI. 



I . External form. 



Brachium conjunctivum [cere- Velum medullare anterius 



belli] Frenulum veli medullaris an- 



Lemniscus . terioris 



Lemniscus lateralis 

 Lemniscus medialis 

 Trigonum lemnisci 



2. Sections of isthmus, 

 [vide Pedunculus cerebri.] 

 Ganglion interpedunculare Nucleus n. trochlearis 



n. CEREBRUM. 



Facies convexa cerebri Basis cerebri 



Facies medialis cerebri 



a. MESENCEPHALON. 



I. Facies inferior. 



Fossa interpeduncularis Recessus posterior 



[Tarini] Substantia perforata posterior 



Recessus anterior 



2. Pedunculus cerebri. 

 a. External form. 

 Aquaeductus cerebri [SylviiJ Sulcus n. oculomotorii 

 Sulcus lateralis 



yS. Sections of pedunculi cerebri. 



i. Tegmentum. Nuclei tegmenti 

 Stratum griseum centrale Nucleus ruber 



Formatio reticularis Decussationes tegmentorum 

 Fasciculus longitudinalis medi- Decussatio brachii conjunc- 



alis tivi 



Radix descendens n. trigemini Lemniscus lateralis 



Nucleus radicis descendentis n. Lemniscus medialis 



trigemini ii. Substantia nigra. 



Nucleus n. oculomotorii iii. Basis pedunxuli. 



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