Clinical Neuroanatomy

Question 1

Where do each of the cranial nerves go to?

Answer 1

CN I- cerebrum (temporal lobe)
CN II- thalamus (which projects to occipital lobe)
CN III and IV- midbrain
CN V to VII - pons
CN VIII to XII - medulla

Question 2

Location of the lateral ventricles

Answer 2

One in each cerebral hemisphere

Question 3

1. Location of third ventricle

2. Location of fourth ventricle

Answer 3

1. Between right and left diencephalon

2. Between pons and cerebellum

Question 4

1. What does the interventricular foramen connect?

2. What does the cerebral aqueduct connect? Location?

Answer 4

1. Connects each lateral ventricle to 3rd ventricle

2. Connects 3rd and 4th ventricles; runs through midbrain

Question 5

CSF flow:

1. What secretes CSF?
2. CSF flows thru?
3. CSF exits thru pores to __
4. CSF is reabsorbed into?

Answer 5

1. Choroid plexus of 3rd ventricle
2. Ventricular system
3. Subarachnoid space
4. Veins and sinuses

Question 6

Location where midbrain transitions to diencephalon?

Answer 6

Tentorium

Question 7

1. Location of infratentorial compartment

2. 2 components

Answer 7

1. Between tentorium and foramen magnum

2. Cerebellum and brainstem

Question 8

Corticospinal motor system:

1. Location of upper motorneurons
2. Location of lower motorneurons

Answer 8

1. Cerebral cortex
2. Ventral/anterior horn of spinal cord / brainstem

~lower motor neurons project to muscle for voluntary movement

Question 9

Axon projections of UMN go where?

Where do UMN synapse?

Answer 9

Descend thru the brain and descend to some target level of the spinal cord

On LMN

Question 10

Left visual field is processed by __ thalamus and __ cortex (and vice versa)

Answer 10

Right thalamus and right cortex

Question 11

Lesion where will abolish cerebral suppression of reflexes?

Answer 11

Supratentorial lesion