Cerebellum- Mod 8

Question 1

Where is the cerebellum located

Answer 1

• inferior to the occipital lobe
• posterior to brainstem
• tucked under the occipital lobe
• tentorium is the roof of the cerebellum

Question 2

The cerebellum rests in the ______

Answer 2

Posterior cranial fossa

Question 3

What are the roles of the cerebellum

Answer 3

1. Grand coordinator of movement

2. Processing unconscious sensory input related to outgoing motor activity

Question 4

What are the 3 major coordination aspects the cerebellum is responsible for

Answer 4

1. Motor coordination
2. Muscle tone
3. Equilibrium/balance

Question 5

What are the 3 cell layers of the cerebellum

Answer 5

1. Molecular (outer)
2. Purkinje
3. Grandular (inner)

Question 6

Which cerebellar cortex layer have excitatory cells. And what are they

Answer 6

Granular (inner)

Granule and golgi cells

Question 7

What are the 4 pairs of deep nuclei in the white matter core

Answer 7

1. Dentate
2. Festival
3. Globose
4. Emboliform

Question 8

What white matter core nuclei are considered to be interposed nucleus

Answer 8

Globose and emboliform

Question 9

What are the 3 peducles that connect the cerebellum to the brainstem

Answer 9

1. Superior peduncle
2. Middle peduncle
3. Inferior peduncle

Question 10

T/F the superior peduncle connects the cerebellum to the pons

Answer 10

False; midbrain

Question 11

T/F the cerebellum does not initiate movement

Answer 11

True

Question 12

The cerebellum receives constant input regarding

Answer 12

1. Joint position and muscle contraction and tone
2. Body state of equilibrium
3. Commands sent out from cerebral motor cortex

Question 13

Damage to the cerebellum leads to

Answer 13

1. Muscle weakness

2. Impaired coordination and balance

Question 14

T/F: output pathways of the cerebellum are direct

Answer 14

false; indirect

Question 15

The medial zone has an important role in

Answer 15

Movements of the axial body

Question 16

What is the lateral zone involved with

Answer 16

1. Coordination of sequential movements
2. Motor sequences
3. Learning motor sequences

Question 17

The vermal zone is also known as

Answer 17

Median zone

Question 18

The intermediate zone is concerned with

Answer 18

Control of muscle contractions in distal portions of upper and lower limbs

Question 19

The horizontal subdivisions include

Answer 19

1. Flocculonodular lobe (inferior)
2. Anterior lobe (superior)
3. Posterior lobe (middle)

Question 20

What is the important role of the flocculonodular lobe

Answer 20

Regulation of muscle tone, posture and equilibrium, and control of eye movement

Question 21

T/F the posterior lobe has an important role in motor coordination and voluntary muscle activity (planning and programming)

Answer 21

True

Question 22

The longitudinal subdivision makes up the

Answer 22

Vermal zone

Question 23

T/F the cerebellum input pathways from the cerebral cortex enter via the middle peduncle via the corticpontine pathway

Answer 23

True

Question 24

The lateral zone includes the _____ as its output nucleus

Answer 24

Dendate