Deck 2: Organization of the Nervous System I

Question 1

What is the function of the choroid plexus?

A)cell regeneration after brain injury
B)manufacture cerebrospinal fluid
C)formation of new ependymal cells
D)macrophage activity after cell death

Answer 1

B
The choroid plexus is responsible for manufacturing cerebrospinal fluid.

Question 2

Which type of neuroglial cells will migrate to the site of brain injury and act as macrophages,cleaning out debris after neural cell death?

A)astrocytes
B)oligodendrocytes
C)ependyma
D)microglia

Answer 2

D
Microglia exhibit a "scavenger" function and will act as macrophages at the site of brain injury.

Question 3

What is the function of boutons?

A)They transmit a neural impulse more quickly along the axon.
B)They conduct a neural impulse toward the neuron.
C)They establish a connection between the neuron and another neuron or the cells of a muscle or gland.
D)They insulate the axon.

Answer 3

C
Establishing the end connection of the neuron is the primary role of the bouton,also known as the axon terminal.

Question 4

The cortex is organized horizontally into how many layers?

A)2
B)4
C)6
D)The cortex is organized in vertical columns,not horizontal layers.

Question 5

Which organelle is the "power center of the cell"?

A)mitochondria
B)nucleus
C)Golgi apparatus
D)cytoplasm

Question 6

Which of the following is true regarding axons?

A)They conduct nerve impulse toward the neuron.
B)They expand the area of the neuron that is available for contact by other neurons.
C)There is only one per neuron.
D)All axons are of uniform size and length.

Question 7

Nerve cells are called:

A)neurons
B)dendrites
C)axons
D)neuroglial cells

Question 8

Which neuroglial cells produce neural growth factor substances?

A)astrocytes
B)oligodendrocytes
C)ependyma
D)microglia

Question 9

Which organelle contains the DNA of a cell?

A)bilipid membrane
B)nucleus
C)lysosomes
D)endoplasmic reticulum (ER)

Question 10

Which of the following is NOT a type of neuroglial cell in the CNS?

A)astrocytes
B)Schwann cells
C)microglia
D)ependyma

Question 11

Which part of the neuron is critical to communication within the nervous system?

A)soma
B)perikaryon
C)cytoskeleton
D)axon

Question 12

Which type of neuroglial cell forms and maintains myelin?

A)astrocytes
B)oligodendrocytes
C)ependyma
D)microglia

Question 13

Which of the following is a term for "the brain"?

A)encephalon
B)cranium
C)basal ganglion
D)cortex

Question 14

The site of contact between a bouton and the nerve,muscle,or gland with which it is in contact is known as:

A)the synapse
B)the cytoplasm
C)the dendrite
D)the axon

Question 15

Which type of neuroglial cells make up the choroid plexus?

A)astrocytes
B)oligodendrocytes
C)ependyma
D)microglia

Question 16

The central nervous system consists of:

A)the brain and cranial nerves
B)the brain and spinal cord
C)the brain only
D)the spinal cord and cranial nerves

Question 17

Which of the following is NOT crucial to information processing and communication processing in the brain?

A)total number of nerve cells
B)total volume of the cerebral cortex
C)the shape of the brain
D)degree of dendritic growth or proliferation

Question 18

Which of the following is NOT true of somatic nerves?

A)They are present in both divisions of the nervous system.
B)They control bodily movements.
C)They innervate visceral organs.
D)They innervate sensory organs.

Question 19

The presence of __________ is what gives white matter its white appearance and name.

A)specialized ependymal cells
B)myelinated axons
C)unmyelinated axons
D)synaptic junctions

Question 20

The processes specialized to receive the impulses moving toward the cell are the:

A)Golgi apparatus
B)dendrites
C)nuclei
D)axons

Question 21

The primary auditory cortex is found in:

A)the superior temporal gyrus
B)the inferior gyrus of the temporal lobe
C)Wernicke's area
D)the transverse gyrus of Heschl

Question 22

In which lobe of the brain can the primary sensory cortex be found?

A)frontal lobe
B)parietal lobe
C)temporal lobe
D)occipital lobe

Question 23

Which of the following is true regarding the amount of motor cortical representation (or space)given to any particular body part?

A)The larger the body part,the greater the area of cortical representation.
B)The more precise the movements of a particular body part,the greater its area of cortical representation.
C)The more distal (further from the brain)the body part,the greater its cortical representation.
D)Equal amounts of cortex are devoted to each part of the body.

Question 24

The enfolding of the cortex of the brain during development forms the:

A)sulci
B)fissures
C)lobes
D)gyri

Question 25

The precentral gyrus makes up the primary ___________ cortex.

A)sensory
B)visual
C)motor
D)none of the above

Question 26

The area that Broca considered to be the fifth lobe of the brain and that contains the most primitive portions of the brain is the:

A)corpus callosum
B)limbic system
C)hippocampus
D)pons

Question 27

Which of the following is NOT a component part of the brainstem?

A)pons
B)midbrain
C)cerebellum
D)medulla oblongata

Question 28

The thalamus integrates all types of sensation in the nervous system except:

A)olfaction
B)vision
C)hearing
D)touch

Question 29

Which of the following exerts neural control over the pituitary gland?

A)thalamus
B)hypothalamus
C)subthalamus
D)epithalamus

Question 30

The primary visual cortex is found in which lobe of the brain?

A)frontal lobe
B)temporal lobe
C)parietal lobe
D)occipital lobe

Question 31

Nonroutine processes that require planning,analysis,feedback,and self-regulation are dependent on which portion of the brain?

A)the precentral gyrus
B)the corpus callosum
C)frontal cortex association areas
D)Broca's area of the brain

Question 32

Which hemisphere is the "dominant" hemisphere in most persons,meaning that it is the hemisphere from which language functions are controlled?

A)left
B)right
C)neither

Question 33

Damage to the cerebellum may cause what type of speech problem?

A)dysarthria
B)aphasia
C)none

Question 34

The area of the brain in which the major neurologic components for understanding and producing language are found is:

A)the sylvian fissure
B)Broca's area
C)the perisylvian zone
D)Wernicke's area

Question 35

Which of the following structures is not a part of the diencephalon?

A)thalamus
B)hypothalamus
C)pituitary gland
D)thyroid gland

Question 36

Which of the following is NOT a likely effect of damage to the angular gyrus?

A)difficulty finding words
B)inability to identify the fingers
C)difficulty with arithmetic
D)inability to thread a needle

Question 37

The cerebral hemispheres are connected by the:

A)gray matter
B)corpus callosum
C)encephalon
D)basal ganglion

Question 38

Which hemisphere of the brain contains the major neurologic mechanisms for speech and language?

A)right
B)left
C)Speech and language centers are equally divided between the two hemispheres.
D)Neither;speech and language centers are found primarily in the brainstem.

Question 39

The temporal lobe is the primary site of _____________ in the brain.

A)sensory processing
B)visual processing
C)auditory processing
D)somatosensory processing

Question 40

The four lobes of each hemisphere of the brain are:

A)the frontal,dorsal,temporal,and occipital lobes
B)the occipital,temporal,nasal,and parietal lobes
C)the frontal,parietal,temporal,and occipital lobes
D)the parietal,sulcus,gyrus,and frontal lobes

Question 41

The five regions of the spinal cord are the cervical,thoracic,lumbar,sacral,and ___________ regions.

A)caudal
B)coccygeal
C)cranial
D)dorsal

Question 42

A myelinated axon conducts neural impulses faster than an unmyelinated axon.