Lab Extras

Question 1

5 Blood supply options in the medulla (from inferior to superior)

Answer 1

1. ASpA
2. PSpA
3. Vertebral A
4. PICA
5. Basilar A branches

Question 2

3 Major blood supply to the pons

Answer 2

1. Branches of the basilar A
2. AICA
3. SCA

Question 3

4 blood supply to midbrain (from inferior to superior + anterior to posterior on the section)

Answer 3

1. Branches of the basilar A
2. Quadrigeminal A
3. Superior cerebellar A
4. Thalamogeniculate A

Question 4

Lesion of the spinal lemniscus

Answer 4

Contralateral hemianalgesia

Question 5

Lesion of descending nucleus and tract of CN 5

Answer 5

Unilateral hemianalgesia, thermal hemianalgesia of face

Question 6

MLF lesion

Answer 6

Internuclear ophthalmoplegia

Question 7

CST lesion

Answer 7

Contralateral spastic hemiplegia

Question 8

Medial lemniscus lesion

Answer 8

Contralateral proprioception hemianesthesia

Question 9

Lateral lemniscus lesion

Answer 9

Bilateral decrease in hearing

Question 10

Red nucleus lesion

Answer 10

Tremors, spasticity