The Cerebellum and Basal Ganglia

Question 1

What is the overall function of the cerebellum

Answer 1

For the coordination of ongoing movement - makes movements smooth and coordinated

Question 2

What percentage of the total number of neurons in the CNS does the cerebellum approximately contain?

Answer 2

50%

Question 3

What is the overall function of the basal ganglia?

Answer 3

To initiate voluntary movements

Question 4

Name two diseases that occur as a result of damage to the basal ganglia

Answer 4

Parkinson’s
Huntinton’s
Hemiballism

Question 5

Which has the capacity of motor memory, the basal ganglia or cerebellum?

Answer 5

Cerebellum

Question 6

Name the three divisions of the cerebellum that are called so based on sources of input

Answer 6

Cerebrocerebellum
Spinocerebellum
Vestibulocerebellum

Question 7

What role does the cerebrocerebellum division have?

Answer 7

Regulates highly skilled movements and complex sequences of movements including speech

Question 8

What role does teh spinocerebellum division have?

Answer 8

Lateral part involved in movement of distal muscles. central part (vermis) involved in movement of proximal muscles

Question 9

What role does the vestibulocerebellum division have?

Answer 9

involved in movements underlying posture and balance.

Question 10

What two components make up the vestibulocerebellum?

Answer 10

the nodulus and flocculus