Rostral Medulla

Question 1

Vestibular Nucleus

Answer 1

• Termination of CN VIII

- Mid Medulla (dorsal aspect next to spinal cord CSF)

Question 2

Inferior Cerebellar Peduncle

Answer 2

• Connects brainstem/spinal cord to the cerebellum

Question 3

Spinal Tract of Trigeminal

Answer 3

• Pain & temperature sensory information, 1st order receptors for CN III.
• Run through the lateral medulla

Question 4

Spinal nucleus of Trigminal

Answer 4

• Termination of temperature & sensory information from CN III
• Lateral brain stem

Question 5

Hypo-thalmo-spinal tract

Answer 5

• Lesions of Posterior Inferior Cerebellar or Vertebral Artery = ipsilateral Horner’s Syndrome
• Dorsolateral quadrant of the lateral funiculus

Question 6

Anterolateral system

Answer 6

• Pain, temperature & crude touch
• Three ascending pathways
  
  1. Spinothalamic tracts
  2. Spinoreticulotract
  3. Spinotectal tracts

Question 7

Inferior Olivary Nucleus

Answer 7

• Origin of climbing fibers

- Ventral lateral medulla

Question 8

Pyramid

Answer 8

• Skilled Motor movements of the contralateral limb

- Vental medulla, containing decussated fibers from the corticospinal tract

Question 9

Medial Lemiscus

Answer 9

• Well localized touch vibration & joint sensation
• Connection between dorsal column nuclei (cuneate & fasiculus) and the thalamus
• Run through the arcuate fibers

Question 10

Medial Longituidinal Fasciculus (MLF)

Answer 10

• Horizontal eye movements

- In the midline, ventral to the ventricle sysytem

Question 11

Cerebellar Cortex

Answer 11

Cortex of cerebellum

Question 12

4th Ventricle

Answer 12

• Ventricular system

- Dorsal to the brain stem from mid-medulla through pons

Question 13

Chroid plexus

Answer 13

Produces CSF