Gross structure of brain stem

Question 1

Parts of brain stem

Answer 1

1. Midbrain
2. Pons
3. Medulla Oblongata

Question 2

Describe Medulla Oblongata

Answer 2

On each side of the median fissure, there is a swelling called the pyramid. On the right side of pyramid is the xii cranial nerve (hypoglossal nerve). Next to this nerve is Olive. Behind Olive is the ix, x, xi cranial nerves.

Question 3

Junction of Medulla & Pons include

Answer 3

Pairs of vi, vii, viii nerves

Question 4

Pons includes

Answer 4

Pair of v nerve

Question 5

Midbrain includes

Answer 5

Pairs of iii and iv nerves.
iv nerve is the only nerve that emerges from posterior side.

Question 6

3 Cerebellar peduncle

Answer 6

1. Superior cerebellar peduncle: Connects Midbrain with Cerebellum
2. Middle cerebellar peduncle: Connects Pons with Cerebellum
3. Inferior cerebellar peduncle: Connects Medulla Oblongata with Cerebellum

Question 7

Cerebrum includes

Answer 7

Pairs of i and ii nerves