Neuro 5

Question 1

Which AED has the broadest spectrum coverage of all the AED?

Answer 1

VPA

Question 2

Which spinal nerve roots are responsible for the following movements? What muscles innervated?

HIP FLEXION?

KNEE EXTENSION?

FOOT DORSIFLEXION/TOE DORSIFLEXION?

FOOT PLANTARFLEXION?

ACHILLES REFLEX?

Answer 2

HIP FLEXION = L1, L2, L3 (ILIOPSOAS)

KNEE EXTENSION = L3, L4 (Quadriceps)

FOOT DORSIFLEXION/TOE DORSIFLEXION = L5 (tiabialis Ant and Extensor hallucis longus)

FOOT PLANTARFLEXION = S1 (Gastrocnemius and Soleus)

ACHILLES REFLEX =S1

Question 3

Brown-Sequard Syndrome is caused by a Hemisection of spinal cord.

What are the classic neurologic symptoms below the level of the lesion?

Answer 3

• IPSILATERAL motor
• IPSILATERAL proprioception/vibratory
• CONTRALATERAL pain and temp

Question 4

Where in the brain are the following Neurotransmitters made?

NE?
Serotonin?
Dopamine?
Acetylcholine?

Answer 4

NE = Locus Ceruleus 
Serotonin = Raphe nuclei
Dopamine = Substantia Nigra
Acetylcholine = Nucleus basalis of Meynert

Question 5

Pure motor hemiparesis occurs with strokes to what three classic locations?

Answer 5

Pure motor hemiparesis can occur with lacunar strokes to…

1. Internal capsule
2. Corona radiata
3. Basis Pontis

Question 6

Lacunar strokes are ischemic strokes that result from small-vessel lipohyalinosis. What are the two most common risk factors?

Answer 6

HTN and DM.

Question 7

What brain lesion would result in Hemibalismus of R arm.

Answer 7

L. Subthalamic Nucleus.

(Lesion to Subthalamic nucleus of Luys, results in contralateral hemibalismus).

Question 8

What are the six known biogenic amines?

Answer 8

• NE
• Epinephrine
• Serotonin
• DA
• Histamine
• Acetylcholine

(GABA is NOT a biogenic amine, but an amino acid neurotransmitter)

Question 9

Where is CSF produced?

Answer 9

Choroid plexus

Question 10

How is CSF fluid absorbed into the blood stream, thereby regulating CSF pressure?

Answer 10

Arachnoid granulations.