Anatomy Pratical 2 Questions

Question 1

what do the brain start off as and what do they turn into

Answer 1

Forebrain - Telencephalon and diencephalon
Midbrain - mesencephalon
Hindbrain- Rhombencephalon (metencephalon and myelencephalon)

Question 2

Which structure sits at the junction between the forebrain and hindbrain?

Answer 2

midbrain

Question 3

What parts of the brain make up the brainstem

Answer 3

Midbrain, pons and medula

Question 4

Which fibre tracts (that you know of) pass through the brainstem?

Answer 4

Spinothalamic, dorsal columns, spinocerebellar, corticospinal, sympathetic fibres

Question 5

Which cranial nerves emerge lateral to the inferior olive?

Answer 5

9-11

Question 6

Which cranial nerves emerge between the inferior olive and pyramids?

Answer 6

12

Question 7

What information is carried in these fasciculi? (Cuneate and gracile)

Answer 7

These will become the dorsal columns in the spinal cord, so conscious proprioception and fine touch, vibration and 2 point discrimination

Question 8

what is the blood supply to the dorsal aspect of the medulla pons and midbrain

Answer 8

Dorsal medulla = PICA Dorsal pons = AICA and SCA Dorsal midbrain = PCA

Question 9

What is the blood supply to the ventral aspect of the medulla, pons and midbrain?

Answer 9

Ventral medulla = vertebral and anterior spinal Ventral pons = basilar and ponitine
Ventral midbrain = SCA, PCA