Midbrain

Question 1

What are the functions of the cerebral peduncles?

Answer 1

Connect cerebral hemispheres to midbrain

Contain descending motor fibres from motor cortex to cord

Question 2

What is the function of the red nuclei?

Answer 2

Involved in motor control

Question 3

What can damage to the red nuclei lead to?

Answer 3

Coarse tremor

Question 4

What are the dorsal-most structures of the midbrain?

Answer 4

Tectum, superior colliculus and inferior colliculus

Question 5

What are the ventral-most structures of the midbrain?

Answer 5

Crus cerebri and substantia nigra

Question 6

What is the function of the superior colliculus?

Answer 6

Reflex actions of visual system

Question 7

What is the function of the inferior colliculus?

Answer 7

Reflex actions from auditory stimuli

Question 8

What surrounds the cerebral aqueduct and what is its function?

Answer 8

Peri-aqueductal gray - pain regulation and micturition

Question 9

What cranial nerve nuclei are found in the midbrain?

Answer 9

Oculomotor and Edinger Westphal