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60 Cards in this Set

  • Front
  • Back
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
c)central/periphral NS
The CNS includes the

a)brain b)spinal cord c)nerves d)A&B e)A&C
d) brain and spinal cord
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
e) all
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
e) A&C
Cells responsible for info processing and transfer are

a)astrocytes b)neuroglia c)neurons d)Shwann cells e)a.o.t.a
c) neurons
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
a) support neurons
Muscles, glands, and special cells that respond to neural stimuli are called

a)effectors b)axons c)dendrites d)reflexes e)receptors
a) effectors
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
b)microglia,oligodendrocytes, schwann cells
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
b) axon
Cardiac mm, glands , andsmooth muscles are under the control of

a)CNS b)parasympathetic division c)sympathetic division d)somatic NS e)B&C
e) parasympathetic/sympathetic divisions
The very beginning of an axion is called

a)neurofibril b)initial segment c)Nissal body d) axoplasm e)axon hillock
b) initial segment
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
c) smallest neuroglia cell
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
a) multilayered membrane around an axon
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
d) the number of processes that project from the cell body
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
a) nodes
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
c)axoplasmic neurons
Which of the following neuroglia produce cerebrospinal fluid

a)microglia b)oligodendrocytes c)ependyma d)astrocytes e)satellite cells
c) ependyma
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
c) somatic motor fibers
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
b) ganglia
The outermost covering of an unmyelinated axon is called (the)

a)neurolemma b)sacrolemma c)axolemma d)internode e)n.o.t.a
Chemical synapses do not have

a)neurotransmitter release b)receptor proteins c)a gap junction d)two interacting neurons e)a postsynaptic membrane
c) a gap junction
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
a) white matter
Which of the following are examples of neuroeffector junctions

a)neuromuscular junctions b)neoroglandular c)neuroaxonic junctions d)neuroneural junctions e)A&B
e) neuromuscular & neuroglandular
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
d 0 the passage of ions btwn cells
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
d) the presence or absence of a myelin sheath
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
e)afferent and sensory pathways
At an electrical synapse the neurons are bound together by

a)telodendria b)internodes c)gap junctions d)nodes e)neurotransmitters
c) gap junctions
Types of synapses include all of the following except

a)axosomatic b)neuroeffector junctions c)axodendritic d)axoaxonic e)all are examples
e) all are examples
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
a) macrophages remove the debris of damaged axons
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
b) a grp of interconnected neurons w/ specific functions
Which type of cell cannot be found in the PNS

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

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
b) gradual reduction of myelin
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
a) Schwann cells
Neurotransmitters are

a)released only at electrical synapses b)produced by astrocytes c)stored in synaptic vesicles d)produced on command e)never recycled
c) stored in synaptic vesicles
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
d) pia matter, arachnoid matter, and dura matter from the inside outward
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
e) subarachnoid space
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
e) all
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
d) gray matter
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
a) posterior gray horn
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
b Isolate the CNS from gen. circulation
The telencephalon becomes the

a)pons b)cerebrum c)medulla d)diencephalon e)midbrain
The cerebral hemispheres are seperated by (the)

a)longintudinal fissures b)lateral ventricles c)central sulcus d)coronal fissures e)n.o.t.a
a) longitudinal fissure
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
c)vouluntary motor control
Together the midbrain, pons, and medulla are called

a)rhombencephalon b)gray matter c)diencephalon d)cerebellum e)brain stem
e) brain stem
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
a)absorb CSF into the venous circulation
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
c) site of production of cerebrospinal fluid
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
c) dural sinuses
The largest region of the brain is (the)

a)diencephalon b)brain stem c)cerebrum d)cerebellum e)n.o.t.a
c) cerebrum
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
d) cerebral nuclei
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
c) gyri
The largest cerebral lobe is the

a)frontal b)occipital lobe c)parietal d)insular e)temporal
a) frontal
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
c) central sulcus
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
c) sensory functions
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
a) the sensory and motor areas
The visceral cortex is located in the

a)temporal b)occipital c)insular d)parietal e)frontal
b) occipital lobe
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
c) receives primary sensory infor of touch, pressure, pain, taste, and temp
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
a) internal capsule
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
b) forms the walls of the diencephalon around teh third ventricle
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
c) relay info to the cerebral nuclei and cerebral cortex