354 LABORATORY MANUAL OF HUMAN ANATOMY 



Use a hand-lens or dissecting microscope. Make drawings indi- 

 cating 



In dorsal part of pons (pars dorsalis pontis). 



(1) Median raphe (raphe). 



(2) Nucleus of N. abducens (nucleus N. abducentis) (0. T. nucleus of 



sixth nerve). 



(3) Motor nuclei of trigeminal nerve (nuclei motorii N. trigemini}. 



(4) Descending or mesencephalic root of trigeminal nerve (radix 



mesencephalica N. trigemini). 



(5) Spinal tract of trigeminal nerve (tractus spinalis N, trigemini). 



(a) Nucleus of spinal tract of trigeminal nerve (nucleus tractus 

 spinalis N. trigemini). 



(6) Nucleus of facial nerve (nucleus N'. facialis). 



(7) Root of facial nerve (radix N. facialis). 



(a) First part (pars prima). 



(b) [Internal] knee (genu [internum]). 



(c) Second part (pars secunda). 



(8) Nuclei of acoustic nerve (nuclei N. acustici) (0. T. auditory 



nucleus). 



(a) Nuclei of cochlear nerve (nuclei N. cochlearis). 



(aa) Ventral (nucleus N. cochlearis ventralis). 



(ab) Dorsal (nucleus N. cochlearis dorsalis [tubercu- 



lum acusticum] ) . 



(b) Nuclei of vestibular nerve (nuclei N. vestibularis) . 



(ba) Medial nucleus (nucleus N. vestibularis medialis). 



(bb) Lateral nucleus (nucleus N. vestibularis lateralis 



[Deitersi] ) . 

 (be) Superior nucleus (nucleus N. vestibularis superior 



[Bechterewi] ) . 

 (bd) Nucleus of descending root (nucleus N. vestibularis 



radicis descendentis) . 



(9) Superior olivary nucleus (nucleus olivaris superior). 



(10) Nucleus of lateral lemniscus (nucleus lemnisci lateralis). 



(11) Medial longitudinal fasciculus (fasciculus longitudinalis medialis) 



(0. T. posterior longitudinal bundle). 



(12) Reticular formation (formatio reticularis) . 



(13) Trapezoid body (corpus trapezoideum) . 



(14) Fillet or lemniscus (lemniscus). 



(a) Medial (sensory) fillet (lemniscus medialis [sensitivus] ) . 



(b) Lateral (acoustic) fillet (lemniscus lateralis [acusticus]) . 



In basilar part of pons (pars basilaris pontis). 



(1) Deep fibres of pons (fibrae profundae pontis). 



(2) Longitudinal pyramidal fasciculi (fasciculi longitudinales [pyrami- 



dales]). 



(3) Nuclei of pons (nuclei pontis). 



(4) Superficial fibres of pons (fibrae pontis superficiales) . 



Sections of Cerebellum (Sectiones cerebelli). 



Make a sagittal median section through the vermis. (Vide 

 Fig. 144.) 



