Deck 4: Neuromotor Basis for Motor Control

Question 1

The pyramidal tracts are a set of _____ pathways in the nervous system.

Answer 1

motor

Question 2

The _____ are extensions from the neuron's cell body that are primarily responsible for receiving information from other neurons.

Answer 2

dendrites

Question 3

This area of the cerebral cortex is primarily responsible for organizing movements before they are initiated.

A) Primary motor cortex
B) Premotor area
C) Supplementary motor area
D) Parietal lobe

Answer 3

B

Question 4

The thin tissue of nerve cells that covers the cerebral cortex is call _____ matter.

Question 5

The copy of neural signals about an intended movement sent by the motor cortex to the cerebellum is known as the:

A) motor output copy.
B) sensorimotor copy.
C) cortico-cerebellar copy.
D) efference copy.

Question 6

A motor unit consists of:

A) the alpha motor neuron and all the muscle fibers it innervates.
B) all the alpha motor neurons activated for a specific movement.
C) the alpha and gamma motor neurons associated with each muscle involved in a specific movement.
D) all the gamma motor neurons activated for a specific movement.

Question 7

The forebrain consists of the

A) Cerebrum and diencephalon.
B) Cerebellum and brainstem.
C) Cerebrum and cerebellum.
D) Diencephalon and brainstem.

Question 8

Parkinson's disease is caused by a lack of production of _____ by the substantia nigra.

Question 9

The nerve fiber that transmits information from the neuron is the:

A) Dendrite
B) Axon
C) Synapse
D) Myelin

Question 10

This part of the brain is not a part of the brainstem that is significantly involved in motor control.

A) Substantia nigra
B) Pons
C) Medulla
D) Reticular formation

Question 11

The areas of the cerebral cortex that would interconnect the various cortex areas needed to perform a choice reaction time task are known as the _____ areas.

Question 12

Parkinson's disease is the result of a dysfunction of this area of the brain.

A) Cerebral cortex
B) Cerebellum
C) Basal ganglia
D) Diencephalons

Question 13

The __________ cortex is the location of the transition between the perception of sensory information and the resulting action.

A) Sensory
B) motor
C) Sensorimotor
D) Association

Question 14

Sensory neurons are also known as _____ neurons.

Question 15

This type of neuron is most frequently found in the nervous system.

A) Interneurons.
B) Afferent neurons.
C) Efferent neurons.
D) Impulse neurons.

Question 16

The nervous system contains fewer sensory neurons than either motor neurons or interneurons.

Question 17

The most posterior lobe of the cerebral cortex, which is especially important for visual perception, is the _____ lobe.

Question 18

Motor neurons are also called:

A) Interneurons
B) Afferent neurons
C) Efferent neurons
D) Impulse neurons

Question 19

The pyramidal and extrapyramidal tracts are two of which of the following types of tracts of the spinal cord?

A) Ascending tracts
B) Descending tracts
C) Lateral tracts
D) Anterior tracts

Question 20

Carson and Kelso demonstrated that to fully understand the neural correlates of motor control, in addition to identifying brain region and muscle innervation characteristics, we need to know:

A) Movement force characteristics
B) Peripheral nervous system involvement
C) Action goals of the movements
D) Individual difference characteristics of the performer of the movements

Question 21

Pyramidal cells are sensory neurons located in the brain.

Question 22

The cerebellum, like the cerebral cortex, has two hemispheres.

Question 23

The primary motor cortex is the area of the cerebral cortex primarily responsible for movement initiation and the coordination of movements for fine motor skills.

Question 24

The thalamus and pons are parts of the limbic system.

Question 25

Most of the extrapyramidal tract fibers crossover in the brainstem to the opposite side of the body.