CEREBELLUM

Question 1

Coordination of voluntary movements

Answer 1

Posterior lobe

Question 2

Maintain coordination of limb movements while the movements are being executed

Regulation of muscle tone

Answer 2

Anterior lobe

Question 3

Responsible for coordination of the paraxial muscles associated with equilibrium

Answer 3

Flocculonodular lobe

Question 4

ATAXIA (loss of coordination of voluntary movements)

Rate, range and force of movements are abnormal resulting to intention tremor

DYSMETRIA - overshoots or undershoots when attempting to touch a target

DYSDIADOCHOKINESIA - inability to perform rapid alternating movements

Answer 4

POSTERIOR LOBE SYNDROME

Question 5

Loss of coordination chiefly in the lower limbs

Marked gait instability

Sliding the heel of one foot smoothly down the shin of the other leg is extremely difficult for the patient to do

Answer 5

ANTERIOR LOBE SYNDROME

Question 6

Truncal ataxia

Answer 6

FLOCCULONODULAR LOBE SYNDROME

Question 7

Anatomical subdivisions

Answer 7

ANTERIOR LOBE: Paleocerebellum / Spinocerebellum (limbs via spinal connections)

POSTERIOR LOBE: Neocerebellum or Cerebrocerebellum (cerebral cortex)

FLOCULONODULAR LOBE: Archicerebellum or Vestibulocerebellum (vestibular apparatus)