55 Clinical: Limbic System Disorders

Question 1

Limbic System

• What are the 3 (+1) components of the limbic system?
• What 3 functions does the limbic system have a role in?

Answer 1

What 3 functions does the limbic system have a role in?

1. Memory
2. Emotion
3. Hemostasis

Question 2

Papez Circuit

• What is the pathway of the Papez circuit?

Answer 2

Question 3

Hypothalamus

• What is the visceral function of this?
• What role does it play in the limbic system?

Answer 3

Question 4

Hypothalamus Nuclei

1. What is the function of the Suprachiasmatic nucleus?
   
   • What happens when it is damaged?
2. What is the function of the Lateral nucleus?
   
   • What happens when it is damaged?
3. What is the function of the Ventromedial nucleus?
   
   • What happens when it is damaged?
4. What is the function of the ​Dorsomedial nucleus?
   
   • What happens when it is damaged?

Answer 4

Question 5

Hippocampus and Memory

• How long does immediate memory last?
• How long does short term memory last?
• Long Term memory
  
  • What are the 2 types of long term memory?
    
    • What is the difference between semantic and episodic?
• Amnesia
  
  • What does retrograde mean?
  • What does anterograde mean?

Answer 5

Question 6

Wernicke Encephalopathy and Korsakoff Syndrome

• What causes both of these?
• Wernicke Encephalopathy
  
  • What is the triad seen in this?
  • How do you treat it? (In what order)
  • Is this reversible?
• Korsakoff Syndrome
  
  • What deficits are seen? (3)
  • How do you treat it?
  • Is this reversible?

Answer 6

Question 7

What does this person probably have?

Answer 7

Alzheimer Disease

Question 8

Hypoxic Injury

• What will be seen relative to the hippocampus?
• What deficits may a patient have?

Answer 8

Question 9

HSV Encephalitis

• How do patients present?
• How do you Dx this? (3)
  
  • What part of the brain does it affect?
• What is the treatment for this?

Answer 9

Question 10

Autoimmune limbic encephalitis

• What 2 things can cause this?
• How do you dx this?
• How do you treat this:
  
  • Acutely?
  • Chronically?

Answer 10

Question 11

Amygdala and Nucleus Accumbens

• Amygdala
  
  • What is the predominant function of this?
  • What happens when it is stimulated?
  • What can happen when it damaged?
• Nucleus Accumbens
  
  • What is the predominant function of this?
  • What happens when it is stimulated?
  • What can happen when it damaged?

Answer 11

Question 12

Kluver Bucy Syndrome

• What kind of brain damage causes this?
• How do patients present? (5)

Answer 12