. (ae, ee 
; 
THE CRANIAL NERVES—continued. 
Name. 
N umber. Function. 
XI. | Spinal acces- (a) Accessory to vagus. Motor to 
sory muscles of palate, pharynx, ceso- 
phagus, stomach and intestines, 
and respiratory organs ; inhibitory 
for heart. 
(4) Spinal part: motor to trapezius 
; and sterno-mastoid muscles 
_ XI. Hypoglossal Motor to muscles of the tongue 
THE FIRST OR OLFACTORY NERVE. 
633 
Superficial Attach- | 
ment to Brain. — 
Medulla oblongata. 
Spinal cord. 
Medulla oblongata. 
The deep cerebral Gonnexions of the cranial nerves are dealt with in the 
section which treats of the Brain (pp. 476 and 499). 
Olfactory a ae 
Yy 
Olfactory tract 
Olfactory tubercle 
Optic nerve 
Optie chiasma 
Certain general points in 
i Olfactory tract 
Broca’s area 
Olfactory tubercle 
\\ Mesial root of olfactory 
nerve 
Ni Lateral root 
Optic chiasma 
-Ant. perforated spot 
Oculo-motor nerve +/ 
Temporal lobe (cut) 
| 
e Trochlear nerve 
Trigeminal nerve 
Optie tract 
“Oculo-motor nerve 
Abducent nerve 
Facial nerve 
Pars intermedia} 
Auditory nerve 
Vagus nerve = 
Spinal accessory nerve (accessory ) | 
Spinal accessory nerve (spinal) 
Hy poglossal nerve 
= 
Hy poglossal nerve 
Spinal cord 
Vermis of cerebellum (cut) 
‘Trochlear nerve 
wnia semicireularis 
rigeminal nerve 
xt. geniculate body 
- Ya-Abducent nerve 
___ yy Int. geniculate body 
—_ 7 Pulvinar 
Facial nerve 
-Pars intermedia 
-Auditory nerve 
Lateral ventricle 
~Mid. cerebellar peduncle 
Glosso-pharyngeal nerve 
Vagus nerve 
Spinal accessory nerve 
(accessory ) 
Spinal accessory nerve 
(spinal) 
Occipital lobe (cut) 
Fic. 452. VIEW OF THE UNDER SURFACE OF THE BRAIN, 
with the lower portion of the temporal and occipital lobes, and the cerebellum on the left side removed, 
to show the origins of the cranial nerves. 
connexion with these nerves are also touched upon in the chapter introductory to 
the Nervous System (p. 414). 
THE First oR OLFACTORY NERVE. 
The olfactory nerve (n. olfactorius) consists of several parts; (1) a series of fine 
