Anatomy Of Nervous System

Front 1

The anatomical subdivisions of the nervous system are (the)

a)dorsal/ventral NS b)autonomic/somatic NS c)central/peripheral NS d)appendicular/axial NS e)n.o.t.a

Back 1

c)central/periphral NS

Front 2

The CNS includes the

a)brain b)spinal cord c)nerves d)A&B e)A&C

Back 2

d) brain and spinal cord

Front 3

Divisions of the PNS include

a)the somatic nervous system b)the special sensory receptors c)the autonomic nervous system d)the visceral nervous system e)a.o.t.a

Back 3

e) all

Front 4

Functions of the PNS include

a)providing sensory info to the CNS b)making higher order decisions to interpret sensory input c)carrying motor commands to the peripheral tissues and systems d)carrying info up and down th espinal cord e)A&C

Back 4

e) A&C

Front 5

Cells responsible for info processing and transfer are

a)astrocytes b)neuroglia c)neurons d)Shwann cells e)a.o.t.a

Back 5

c) neurons

Front 6

Neuroglia in the nervous system funtion to

a)support neurons b) process info in the NS c)transfer nerve impulse from the brain to the spinal cord e)a.o.t.a

Back 6

a) support neurons

Front 7

Muscles, glands, and special cells that respond to neural stimuli are called

a)effectors b)axons c)dendrites d)reflexes e)receptors

Back 7

a) effectors

Front 8

Which of the following selections lists only types of glial cells

a)apocrine/exocrine cells b)microglia, oligodendrocytes, and Schwann cells c)astrocytes/parenchymal cells d)merocrine, platlet an dependymal cells e)n.o.t.a

Back 8

b)microglia,oligodendrocytes, schwann cells

Front 9

The portion of a neuron that carries info in the form of a nerve impulse is called

a)dendrite b)axon c)Nissal body d)soma e)myelin

Back 9

b) axon

Front 10

Cardiac mm, glands , andsmooth muscles are under the control of

a)CNS b)parasympathetic division c)sympathetic division d)somatic NS e)B&C

Back 10

e) parasympathetic/sympathetic divisions

Front 11

The very beginning of an axion is called

a)neurofibril b)initial segment c)Nissal body d) axoplasm e)axon hillock

Back 11

b) initial segment

Front 12

Microglia are (the)

a)largest neuroglia cell b)most numerous neuroglia cell c)smallest neuroglia cell d)least numerous neuroglia cell e)n.o.t.a

Back 12

c) smallest neuroglia cell

Front 13

Myelin is (a)

a)multilayered membrane around a n axon b)cell body c)special area of the brain d)special cell that protects neurons e)n.o.t.a

Back 13

a) multilayered membrane around an axon

Front 14

The structural classification of a neuron is based upon

a)The size of teh dendrites b)the type of chemical neurotransmittor it secretes c)the number of axons d)the number of processes that project from the cell body e)A&D

Back 14

d) the number of processes that project from the cell body

Front 15

Areas of a myelinated axon that are not covered by myelin are called

a)nodes b)gray matter c)white matter d)internodes e)a.o.t.a

Back 15

a) nodes

Front 16

The functional classification of neurons do not include

a)assotiation neurons(=interneurons) b)sensory neurons c)axoplasmic neurons d)motor neurons e)all are correct

Back 16

c)axoplasmic neurons

Front 17

Which of the following neuroglia produce cerebrospinal fluid

a)microglia b)oligodendrocytes c)ependyma d)astrocytes e)satellite cells

Back 17

c) ependyma

Front 18

Voluntary skeletal mm fibers in the leg areinnervated by

a)visceral motor fibers b)postganglionic fibers c)somatic motor fibers d)preganglionic fibers e)a.o.t.a

Back 18

c) somatic motor fibers

Front 19

Satillite cells surround the cell bodies of peripheral neurons which can be found in (the)

a)peripheral centers b)ganglia c)roots d)nuclei e)a.o.t.a

Back 19

b) ganglia

Front 20

The outermost covering of an unmyelinated axon is called (the)

a)neurolemma b)sacrolemma c)axolemma d)internode e)n.o.t.a

Back 20

c)axolemma

Front 21

Chemical synapses do not have

a)neurotransmitter release b)receptor proteins c)a gap junction d)two interacting neurons e)a postsynaptic membrane

Back 21

c) a gap junction

Front 22

Areas of teh nervous system that are dense in myelinated axons are reffered to as

a)white matter b)gray matter c)dura matter d)arachnoid matter e)it dosen;t matter

Back 22

a) white matter

Front 23

Which of the following are examples of neuroeffector junctions

a)neuromuscular junctions b)neoroglandular c)neuroaxonic junctions d)neuroneural junctions e)A&B

Back 23

e) neuromuscular & neuroglandular

Front 24

A gap junction acts to facilitate

a)growth of Schwann cells b)the passage of neurotransmittersbetween cells c)a change in permeability of the postsynaptic membrane d)the passage of ions between the cells e)a.o.t.a

Back 24

d 0 the passage of ions btwn cells

Front 25

The rate of conduction of a nerve impulse depends upon

a)the type of neurotransmitter present b)the # of cell dendrites c)properties of the soma of the neuron d)the presence or absence of a myelin sheath e)a.o.t.a

Back 25

d) the presence or absence of a myelin sheath

Front 26

Pathways leading from the receptors to the CNS are called

a)afferent pathways b)efferent pathways c)sensory pathways d)motor pathways e)A&C

Back 26

e)afferent and sensory pathways

Front 27

At an electrical synapse the neurons are bound together by

a)telodendria b)internodes c)gap junctions d)nodes e)neurotransmitters

Back 27

c) gap junctions

Front 28

Types of synapses include all of the following except

a)axosomatic b)neuroeffector junctions c)axodendritic d)axoaxonic e)all are examples

Back 28

e) all are examples

Front 29

In th eprocess klnown as Wallerian degeneration

a)macropahges remove the debris of damaged axons b)the axon proximal to the injury degenerates c)Schwann cells completely degenerate d)no trace left by th epath taken by the previous axon e)A&C

Back 29

a) macrophages remove the debris of damaged axons

Front 30

A neuron pool is

a)a grp of neurons linked by gap junctions b)a group of innterconnected neurons w/ specific functions c)the grp of neurons available to regenerate a damaged nerve d)a grp of identical nerve cells e)A&B

Back 30

b) a grp of interconnected neurons w/ specific functions

Front 31

Which type of cell cannot be found in the PNS

a)neurons b)oligodendrocytes c)Schwann cells d)satellite cells e)A&B

Back 31

b) oligodendrocytes

Front 32

During dev. of the nervous system, when the ectoderm of the dorsal midline thickens it forms (the)

a)notochord b)neural tube c)neural crest d)neural plate e)n.o.t.a

Back 32

d) neural plate

Front 33

Demyelination

a)is teh addition of teh myelin to the axon b)is the gradual reduction in th emyelin c)only affects oligodendrocytes d)is the thickening of the myelin e)only affects the Schwann cells

Back 33

b) gradual reduction of myelin

Front 34

If a nerve becomes less efficient at transmitting impulses, this may indicate damage to the

a)Schwann cells b)microglia c)ependymal cells d)satellite cells e) astrocytes

Back 34

a) Schwann cells

Front 35

Neurotransmitters are

a)released only at electrical synapses b)produced by astrocytes c)stored in synaptic vesicles d)produced on command e)never recycled

Back 35

c) stored in synaptic vesicles

Front 36

The meninges include

a)two layers of transverse collagen fibers b)pia matter, dure matter,and venous sinuses from the outside inward c)different layers for the brain an dthe spinal cord d)pia matter,arachnoid matter, and dura matter from the inside outward e)n.o.t.a

Back 36

d) pia matter, arachnoid matter, and dura matter from the inside outward

Front 37

A needle used in a spinal tap must be inserted until the tip is in the

a)subdural space b)peridural space c)epidural space d)arachnoid matter e)subarachnoid space

Back 37

e) subarachnoid space

Front 38

The spinal meninges function to

a)assist in delivering nutrients and oxygen to the spinal cord b)protct the spinal cord c)stabilize the spinal cord d)absorb shock to the spinal cord e)a.o.t.a

Back 38

e) all

Front 39

The H-shaped mass in th ectr of teh spinal cord is mostly

a)axons b)black matter c)white matter d)gray matter e)n.o.t.a

Back 39

d) gray matter

Front 40

The nuclei in the spinal cord that contain the cell bodies of the somatic and visceral sensory neurons are located in th e

a)posterior gray horn b)anterior h=gray horn c)gray commissures d)lateral gray horn en.o.t.a

Back 40

a) posterior gray horn

Front 41

The primary purpose of the blood-brain barrier is to
a)drain blood from the brain b)isolate CNS from gen. circulation c)provide brain w/ oxygen d)hook areas of teh brain together e)n.o.t.a

Back 41

b Isolate the CNS from gen. circulation

Front 42

The telencephalon becomes the

a)pons b)cerebrum c)medulla d)diencephalon e)midbrain

Back 42

b)cerebrum

Front 43

The cerebral hemispheres are seperated by (the)

a)longintudinal fissures b)lateral ventricles c)central sulcus d)coronal fissures e)n.o.t.a

Back 43

a) longitudinal fissure

Front 44

Damage to the pyramidal cells of th ecerebral cortex would directly affect

a)perception of pain b)ability to taste c)voluntary motor control d)ability to see e)ability to hear

Back 44

c)vouluntary motor control

Front 45

Together the midbrain, pons, and medulla are called

a)rhombencephalon b)gray matter c)diencephalon d)cerebellum e)brain stem

Back 45

e) brain stem

Front 46

Arachnoid granulations

a)absorb CSFint venous circulation b)occur along the inferior sagittal sinus c)line the sella turcica of the sphenoid bone d)none of the se attributes e)are projections of teh dura matter into arachnoid

Back 46

a)absorb CSF into the venous circulation

Front 47

The coroid plexus

a)is teh site of drainage of used cerebrospinal fluid from the neural tissue b)is the site where the spinal nerves first enter the medulla c)is the site of production of the cerebospinal fluid d)is located on the entire surface area of the brain-ventricle interface e)n.o.t.a

Back 47

c) site of production of cerebrospinal fluid

Front 48

Blood and cerebrospinal fluid drain from teh brain in (the)

a)subarachnoid space b)ventricles c)dural sinuses d)epidural space e)n.o.t.a

Back 48

c) dural sinuses

Front 49

The largest region of the brain is (the)

a)diencephalon b)brain stem c)cerebrum d)cerebellum e)n.o.t.a

Back 49

c) cerebrum

Front 50

Deep gray matter of the cerebrum is called

a)projection fibers b)the cerebral cortx c)fissures d)cerebral nuclei e)n.o.t.a

Back 50

d) cerebral nuclei

Front 51

The cortical surface of the cerebral hemispheres form a series of elevated ridges called

a)sulci b)nuclie c)gyri d)lobes e) n.o.t.a

Back 51

c) gyri

Front 52

The largest cerebral lobe is the

a)frontal b)occipital lobe c)parietal d)insular e)temporal

Back 52

a) frontal

Front 53

The grove between the frontal and parietal lobes of the brain is (the)

a)lateral sulcus b)pario-accipital sulcus c)central sulcus d)longitudinal fissure e)n.o.t.a

Back 53

c) central sulcus

Front 54

The parietal lobe is primrily used for

a)motor functions b)perception of auditory stimuli c)sensory functions d)perception of visual stimuli e)n.o.t.a

Back 54

c) sensory functions

Front 55

The central sulcus seperates which regions of the cerebrum

a)motor and sensory areas b)the pyramidal cells and the frontal lobes c)the temporal and insular d)parietal and occipital e)n.o.t.a

Back 55

a) the sensory and motor areas

Front 56

The visceral cortex is located in the

a)temporal b)occipital c)insular d)parietal e)frontal

Back 56

b) occipital lobe

Front 57

Which unique function of the brain occurs in the postcentral gyrus

a)provdes volutary motor control to the skeletal mm b)returns cerebospinal fluid back into the circulatory system c)receives primary sensory info of touch,pressure, pain, taste, and temp d)provides viseral motor responses,serving as centers of the autonomic NS e)n.o.t.a

Back 57

c) receives primary sensory infor of touch, pressure, pain, taste, and temp

Front 58

The caudate nucleus and the lentiform nucleus are anatomically seperated by (the)

a)internal capsule b)longitudinal fissure c)corpus callosum d)fornix e a.o.t.a

Back 58

a) internal capsule

Front 59

The thalamus

a)performs many voluntary functions b)forms the walls of teh diencephalon around the third ventricle c)is the initial processing ctr for the most motor output to the spinal cord d)contains ctrs that are involved w/ emotional and visceral processes e)n.o.t.a

Back 59

b) forms the walls of the diencephalon around teh third ventricle

Front 60

Thalamic nuclei function to

a)relay info to the mamillary bodies b)pass motor info to the descending tracts and to the spinal cord c)relay sensory info to the cerebral nuclei and cerebral cortex d)relay info to the occipital lobes e)n.o.t.a

Back 60

c) relay info to the cerebral nuclei and cerebral cortex