Chapter 7 Practice Questions

Front 1

The eye muscles can be moved with greater precision than the biceps muscles because the:

Back 1

Eye muscles have a lower ratio of muscle fibers to axons

Front 2

What experience is similar to losing proprioception?

Back 2

Walking on the leg that has "fallen asleep"

Front 3

A motor program is a:

Back 3

Movement that, once triggered, continues automatically until its completion

Front 4

Which of the following behaviors would most likely result from activity of central pattern generators?

Back 4

A dog shaking itself to dry off

Front 5

The premotor cortex:

Back 5

Is active during preparations for a movement and less active during movement itself

Front 6

Just thinking about the intention to put your arm around your attractive date would activate which of the following motor areas?

Back 6

Supplementary Cortex

Front 7

Watching another person shoot a basketball is most likely to activate ____ neurons in the brain of the person who is watching.

Back 7

Mirror

Front 8

The motor cortex produces a kind of activity called a ____ before any voluntary movement.

Back 8

Readiness Potential

Front 9

Movements near the midline of the body, such as bending and turning of the trunk, are controlled by which motor system?

Back 9

Ventromedial Tract

Front 10

If you have trouble with rapid, ballistic movement sequences that require accurate timing, you probably have suffered damage to the:

Back 10

Cerebellum

Front 11

What is the name of the rapid eye movement occurring when a person moves his or her eyes form one focus point to another?

Back 11

Saccade

Front 12

The basal ganglia work together to initiate movement by:

Back 12

Ceasing to inhibit movement

Front 13

Cerebellum is to ___ as basal ganglia are to ___.

Back 13

Timing; Voluntary movements

Front 14

In Parkinson's disease, which pathway in the brain degenerates?

Back 14

Substantia nigra to caudate nucleus and putamen

Front 15

What is a common symptom of Huntington's disease?

Back 15

Loss of both sensation and motor control in certain limbs

Front 16

The greater the number of Purkinje cells activated the:

Back 16

Greater the collective duration of the response

Front 17

Which would be especially important when running up a flight of stairs at full speed?

Back 17

Fast-twitch muscles

Front 18

A physician who asks you to cross your legs and then taps just below the knee is testing your _____ reflexes.

Back 18

Stretch

Front 19

Parkinson's disease patients, who usually have trouble walking, can walk surprisingly well when they:

Back 19

Are following a parade