Dr Gawad Physiology Course Online Exams – Basal Ganglia

6 Questions | By Drgawadphysiolog | Updated: Mar 22, 2022 | Attempts: 1267

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Dr Gawad Physiology Course Online Exams Basal Ganglia - Quiz

6 MCQs (Only one correct answer) Each MCQ: 1 mark, Total mark: 6 (you will get the results immediately with correction by the web) Allowed time: 6 min Good Luck dr Mohammed Abdel Gawad

Questions and Answers

1.

Regarding basal ganglia connections, which is true:
- A.
  
  Destruction of the substania nigra leads to disruption of both direct and indirect connections.
- B.
  
  The thalamus is only important for the indirect internal connections.
- C.
  
  Globus pallidus main neurotransmitter is the glycine.
- D.
  
  Cortex main effect on striatum is inhibitory.
2.

Regarding basal ganglia connections, which is true:
- A.
  
  Direct circuit is inhibitory to motor cortex
- B.
  
  Indirect pathway is facilitatory to ongoing movements
- C.
  
  Putamen is included in the control of arm swinging during walking
- D.
  
  Globus pallidus is stimulatory to muscle tone
3.

Regarding parkinsonism, which is true:
- A.
  
  Tremors are coarse, kinetic, disappears during sleep
- B.
  
  It occurs proximally before distally parts of the limb
- C.
  
  Rigidity is a form of hyperkinetic disturbance
- D.
  
  None of the above
4.

Regarding basal ganglia connections, which is true:
- A.
  
  Subthalamus is the discharging center
- B.
  
  Striatum is the receiving center
- C.
  
  Substantia nigra is stimulatory
- D.
  
  All of the above
5.

Regarding basal ganglia connections, which is true:
- A.
  
  Direct circuit is inhibitory to motor cortex
- B.
  
  Indirect pathway is inhibitory to unwanted movements
- C.
  
  There is no balance betweeen the two circuits
- D.
  
  None of the above
6.

Concerning nigro-striatal projection, which is true:
- A.
  
  Stimulation of D1 increases unwanted movements
- B.
  
  Stimulation of D2 inhibits ongoing movements
- C.
  
  The nigrostriatal pathway net effect is exciting of the cortex
- D.
  
  All of the above