mastering hw questions

Question 1

For our motor commands to travel toward our muscles, the signals must travel on __________.

Answer 1

projection fibers

Question 2

What type of cells line the ventricles of the brain?

Answer 2

ependymal cells

Question 3

t/f? In most people, the left cerebral hemisphere has greater control over language abilities, math, and logic.

Answer 3

true

Question 4

t/f The brain and spinal cord begin as an embryonic structure called the neural plate.

Answer 4

true

Question 5

Loss of ability to perform skilled motor activities such as piano playing, with no paralysis or weakness in specific muscles, might suggest damage to the ________.

Answer 5

premotor cortex

Question 6

At age 79, Mrs. X is diagnosed with a disorder that severely impairs her logical judgment. Medical imaging techniques show that this has been most likely caused by brain damage in a ______

Answer 6

frontal lobe

Question 7

If the caudal portion of the neural tube failed to develop properly the ________.

Answer 7

spinal cord may be affected

Question 8

t/f In general, a primary sensory cortex breaks down sensory input into component parts, while an association cortex makes sense of sensory inputs.

Answer 8

true

Question 9

Which of the following generalizations does NOT describe the cerebral cortex?

• The hemispheres are exactly equal in function.
• Each hemisphere is chiefly concerned with sensory and motor functions of the contralateral side of the body.
• The cerebral cortex contains three kinds of functional areas.
• No functional area of the cortex works alone.

Answer 9

the hemispheres are exactly equal in function

Question 10

Broca’s area _____

• is usually found only in the right hemisphere
• is considered a motor speech area
• controls voluntary movements of the eyes
• serves the recognition of complex objects

Answer 10

is considered a motor speech area