Chapter 8 Quiz 2

A  Contralateral primary motor and somatosensory cortices were equally activated during the performance of newly learned and well-practiced sequences.

B  Dorsolateral prefrontal cortex was activated during the performance of newly learned but not well-practiced sequences

C  all of these

D  The cerebellum was activated during both newly learned and well-practiced sequences but more during newly learned sequences.

E  Posterior parietal cortex was more activated during the performance of both newly learned sequences than during the performance of well-practiced sequences.

A  spinal interneuronal pools.

B  association cortex.

C  primary motor cortex.

D  secondary motor cortex.

E  descending motor pathways.

A  Golgi organs.

B  Renshaw cells.

C  reciprocal innervation.

D  muscle spindles.

E  cocontraction.

A  voluntary is to ballistic.

B  dynamic is to static.

C  CNS is to PNS.

D  voluntary is to reflex.

E  muscle spindle is to skeletal muscle.

A  fatigue.

B  length.

C  location.

D  tension.

E  color.

A  synergistic muscles.

B  extrafusal motor pools.

C  spindle afferents.

D  gamma efferents.

E  Golgi tendon organs.

A  dynamic

B  synergistic.

C  antagonistic.

D  isometric.

E  extensors.

A  agonists.

B  motor unit.

C  motor pool.

D  antagonists.

E  discharge unit.

A  most extensors.

B  fewest motor neurons.

C  most motor neurons.

D  most muscle fibers.

E  fewest muscle fibers.

A  basal ganglia were lesioned.

B  dorsolateral corticospinal tracts were transected.

C  ventromedial corticospinal tracts were transected.

D  dorsolateral corticorubrospinal tracts were transected.

E  cerebellum was lesioned.

A  vestibular nucleus

B  tegmentum

C  cerebellum

D  basal ganglia

E  tectum

A  vestibular nuclei.

B  all of these

C  reticular formation.

D  tectum.

A  motor neurons that project to the fingers.

B  Betz cells.

C  interneurons of the spinal gray matter that in turn synapse on motor neurons that project to the distal muscles of the arms and legs.

D  muscles of the hands and wrists.

E  muscles of the fingers and thumb.

A  red nucleus.

B  substantia nigra.

C  vestibular system.

D  caudate.

E  cerebellum.

A  body core.

B  legs.

C  hands and feet.

D  thighs.

E  proximal limbs.