Week 7

Question 1

Which part of the brain adjusts posture and coordinates movements?
A. Cerebrum
B. Cerebellum
C. Central Lobes
D. All of the Above

Answer 1

B. Cerebellum
The cerebellum adjusts posture and cooordinates movements.

Question 2

To achieve smooth movements, the cerebellum integrates information from the __ and __.
A. Frontal Lobes
B. Midbrain
C. Vestibular Receptors and Proprioceptors
D. Both A and C

Answer 2

D. Both A and C

To achieve smooth movements, the cerebellum integrates information from the frontal lobes and vestibular receptors and proprioceptors.

From frontal lobes: about intended movements
From vestibular receptors and proprioceptors: About neural activity in brainstem motor areas and ventral horn cells in spinal cord.

Question 3

True/False
All cerebellar functions are nonconscious.

Answer 3

True

Question 4

True/False
There is a direct connection between cerebellum and lower motor neurons.

Answer 4

False
There is no direct connection between the cerebellum and lower motor neurons.

Question 5

The cerebellum influences movement via synapses with upper motor neuron cell bodies in what part of the brain?
A. Motor Cortex
B. Premotor Cortex
C. Brainstem
D. All of the Above

Answer 5

D. All of the Above

Question 6

Does severe damage to the cerebellum interfere with sensory perception or with muscle strength?
A. Yes
B. No
C. Maybe

Answer 6

B. No

Severe damage to the cerebellum does not interfere with sensory perception nor with muscle strength.

Damage results in impaired coordination and postural control.

Question 7

How many lobes does the cerebellum have in each hemisphere?
A. 1
B. 2
C. 3
D. 4

Answer 7

C. 3

Anterior
Posterior
Flocculonodular

Question 8

What are the three functional regions the cerebellum can be vertically divided into?
A. Midline Vermis, Paravermis, Parietal Hemisphere
B. Paravermis, Lateral Hemisphere, Lateral Vermis
C. Lateral Hemisphere, Parietal Hemisphere, Lateral Vermis
D. Midline Vermis, Paravermis, Lateral Hemisphere

Answer 8

D. Midline Vermis, Paravermis, Lateral Hemisphere

Question 9

What are the three broad classes of human movement categorized in?

Answer 9

Equilibrium
Gross movements of the limbs
Fine, Distal voluntary movements

Each of the classes of movements can be illustrated by considering the cerebellar contributions that occur when a person reaches for a book from a high shelf.

Question 10

Vestibular and visual afferent information enters what region of the cerebellum and synapses in the flocculonodular cortex?
A. Spinocerebellum
B. Vestibulocerebellum
C. Cerebrocerebellum
D. None of the Above

Answer 10

B. Vestibulocerebellum

Located in the flocculonodular lobe

To vestibular nuclei: Influence postural control and control of eye movements
Therefore…it integrates visual and vestibular input to coordinate motor activities for posture and head and eye movements.