Anatomy

1. ALLPPT.com _ Free PowerPoint Templates, Diagrams and Charts
Domina Petric, MD
III., IV. and VI. cranial
nerves

2. III. cranial nerve (n. occulomotorius)
Nuclei are located in tegmentum mesencephali (colliculi superiores)
:
nucleus n. oculomotorii (general somatic efferent
fibres)
nucleus accessorius n. oculomotorii (general
visceral efferent fibres)

3. Image available on:
TeachMeAnatomy.com
Parasympathetic fibres
go from oculomotor nerve
into the ciliary ganglion and
then form short ciliary nerves
for the innervation of ciliar muscle
and sphincter pupillae muscle.

4. Branches of the oculomotor nerve
Three branches!
r. superior r. inferior r. ad ganglion ciliare
(radix
parasympathica
ganglii ciliaris)
m. rectus superior
m. levator palpebrae
m. rectus medialis
m. rectus inferior
m. obliquus inferior
m. ciliaris
m. sphincter pupillae

5. IV. cranial nerve (n. trochlearis)
Nucleus is located in tegmentum mesencephali (colliculi inferiores):

6. IV. cranial nerve (n. trochlearis)
It has the longest way from the brain to the muscle that innervates!

7. Image available on:
Ophthnotes.com

8. VI. cranial nerve (n. abducens)
Nucleus is located in
tegmentum of rhomboid fossa (colliculus facialis):
nucleus n. abducentis (general somatic efferent fibres)
Wikipedia

9. VI. cranial nerve (n. abducens)
Innervates:

10. Image available on:
https://epsomtissuetech.files.wordpress.com/2013/06/abducens-nerve.jpg

11. Literature:
TeachMeAnatomy.com
Ophthnotes.com
Wikipedia
Krmpotić-Nemanić J. Marušić A. Anatomija čovjeka, Medicinska naklada, Zagreb, 2007.