Cranial Nerves: Where They Emerge From

Question 1

1. Nervi olfactorius

Answer 1

Arises from cells of nasal mucous membrane (olfactory bulb)

Question 2

2. Nervii opticus

Answer 2

Arises from retina, discus opticus

Question 3

3. Nervii oculomotorius

Answer 3

Arises from the medial groove of interpeduncular fossa(crura)

Question 4

4. Nervii trochlearis

Answer 4

Emerges from the brainstem caudally to caudal colliculi of tecum mesencephali (colliculi tectum)

Question 5

5. Nervii trigeminus

Answer 5

Emerges from dorsolateral side of pons

Question 6

6.nervii abducens

Answer 6

Emerges from medulla oblangata

Question 7

7. Nervii facialis

Answer 7

Emerges from trapezoid body of medulla oblangata

Question 8

8. Nervii vestibulocochlearis

Answer 8

Emerges from the trapezoid body of medulla oblangata

Question 9

9. Nervii glossopharyngeus

Answer 9

Emerges from lateroventrally medulla oblangata

Question 10

10. Nervi vagus

Answer 10

Emerges from medulla oblangata
(Pars cervicalis, thoracica, abdominalis)

Question 11

11. Nervii accessorius

Answer 11

Emerges from:
- radices spinales -> first 6 segments of the spinal cord
- radices craniales -> medulla oblangata

Question 12

12. Nervii hypoglossus

Answer 12

Emerges from the ventral surface of medulla oblangata, laterally to the pyramid.