12. Brain Stem Surface Anatomy: Anterior View

Question 1

Identify 1

Answer 1

1. Mammillary bodies

Question 2

Identify 2

Answer 2

2. Trigeminal nerve (CN V)

Question 3

Identify 3 - 5

Answer 3

3. Vestibulocochlear nerve (CN VIII)
4. Glossopharyngeal nerve (CN IX)
5. Hypoglossal nerve (CN XII)

Question 4

Identify 6 - 8

Answer 4

6. Pyramidal decussation
7. Pyramid
8. Olive

Question 5

Identify 9

Answer 5

9. Middle cerebellar peduncle

Question 6

Identify 10 - 11

Answer 6

10. Lateral geniculate body
11. Cerebral peduncle

Question 7

Identify 12 - 13

Answer 7

12. Infundibular stalk
13. Optic chiasm

Question 8

All of the peripheral cranial nerves (III to XII) emerge from (1)____ except CN IV, which emerges from (2)____

Answer 8

the ventral (anterior) surface of the brain stem
the dorsal surface of the midbrain.

Question 9

All of (1)____ emerge from the ventral (anterior) surface of the brain stem except (2)____, which emerges from the dorsal surface of the midbrain.

Answer 9

1. the peripheral cranial nerves (III to XII)
2. CN IV