Question 1

28. The area of the cortex that is responsible for sensing a full bladder and the feeling that your lungs will burst when you hold your breath too long is the

Accepted Answer

visceral sensory area

Question 2

Embryonic damage to the mesencephalon could result in improper formation of the midbrain.

Accepted Answer

True

Question 3

A patient is admitted to the rehabilitation unit five days after having a stroke. The nurse assesses his muscle strength and determines that he has right-sided weakness. There was damage to the localized areas of the _____cortex in the ____ cerebral hemisphere.

Accepted Answer

primary motor cortex, left

Question 4

Classify a fiber tract that communicates between the left prefrontal lobe and the left parietal lobe.

Accepted Answer

association fibers

Question 5

Association fibers communicate between gyri in the same cerebral hemisphere.

Accepted Answer

True

Question 6

Ridges of tissue on the surface of the cerebral hemispheres are called

Accepted Answer

gyri

Question 7

A shallow groove on the surface of the cortex is called a

Accepted Answer

sulcus

Question 8

Includes the thalamus, hypothalamus, and epithalamus

Accepted Answer

diencephalon

Question 9

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

Accepted Answer

premotor cortex

Question 10

26. The brain and spinal cord begin as an embryonic structure called the neural plate.

Accepted Answer

True

Question 11

Which of the following generalizations does not describe the cerebral cortex? Each hemisphere is chiefly concerned with sensory and motor functions of the contralateral side of the body. The hemispheres are exactly equal in function. The cerebral cortex contains three kinds of functional areas. No functional area of the cortex works alone.

Accepted Answer

The hemispheres are exactly equal in function. (not true)

Question 12

A major relay station for sensory information ascending to the cerebral cortex. Contains many specialized nuclei.

Accepted Answer

thalamus

Question 13

This brain area associates experiences necessary for the production of abstract ideas, judgement, and conscience.

Accepted Answer

prefrontal cortex

Question 14

The axons from this area form the major pyramidal (corticospinal) tracts.

Accepted Answer

primary (somatic) motor cortex

Question 15

This area is the main visceral control center of the body.

Accepted Answer

hypothalamus

Question 16

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

Accepted Answer

True. The primary sensory cortex receives sensory inputs in their cruder forms, while the association cortex helps you understand what the sensory input means.

Question 17

1. Which part of the CNS sorts almost all of the ascending sensory information?

Accepted Answer

Thalamus. Afferent impulses from all senses and all parts of the body converge on the thalamus and synapse with at least one of its nuclei. The thalamus-- which sorts out and edits these afferent signals before relaying them to the appropriate cortical areas--is considered the gateway to the cerebral cortex. In summary, the thalamus plays a key role in mediating sensation, motor activities, cortical arousal, learning, and memory.

Question 18

The middle primary brain vesicle, the mesencephalon, gives rise to which adult brain structure?

Accepted Answer

midbrain, The term mesencephalon means midbrain. As it develops from a primary brain vesicle to a secondary brain vesicle and finally an adult brain structure, it retains its name--the midbrain. Each of the other two primary brain vesicles divides to give rise to new secondary brain vesicles and adult brain structures (with new names). Note that encephalo- means brain.

Question 19

If the caudal portion of the neural tube failed to develop properly the cranial nerves would not form hindbrain would not be present telencephalon would cease development spinal cord may be affected

Accepted Answer

spinal cord may be affected

Question 20

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

Accepted Answer

projection fibers; Projection fibers descend from brain toward the spinal cord

Question 21

12. Which type of white matter fiber tract connects the cerebrum to lower centers, like the spinal cord?

Accepted Answer

projection fibers; Projection fibers connect the cerebral cortex to the brain stem and spinal cord.

Question 22

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

Accepted Answer

True

Anatomy Chapter 12

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