NURS 5315 EXAM 4 COMPLETE
QUESTIONS AND ANSWERS
12 .Cranial .nerves .- .(correct .answer) .-1. .Olfactory
2. .Optic
3. .Oculomotor
4. .Trochlear
5. .Trigeminal
6. .Abducens
7. .Facial
8. .Vestibulocochlear
9. .Glossopharyngeal
10. .Vagus
11. .Accessory
12. .Hypoglossal
Afferent .nerves .- .(correct .answer) .-
sensory .nerves .that .carry .impulses .from .the .cells, .tissues, .and .organs .to .the .CNS .system.
Efferent .nerves .- .(correct .answer) .-
carry .impulses .from .the .CNS .to .cells, .tissues, .and .organs, .motor .nerve
Central .Nervous .System .- .(correct .answer) .-brain .and .spinal .cord
peripheral .nervous .system .- .(correct .answer) .-*12 .cranial .nerves .and .31 .spinal .nerves .
*further .subdivided .into .the .somatic .nervous .system .and .the .autonomic .nervous .system
* .PNS .has .the .afferent .and .efferent .pathways
Neuron .- .(correct .answer) .-* .basic .functional .unit .of .the .nervous .system
, * .fueled .by .glucose
* .3 .parts .to .a .neuron
- .cell .body
- .dendrite
- .axon
* .mostly .in .the .CNS .and .called .nuclei .in .a .group
* .in .the .PNS .the .groups .are .called .ganglia .or .plexus
* .dendrites- .projections .that .collect .information .and .direct .it .to .the .cell .body
* .Axon- .conducts .impulses .to .the .next .neuron, .axons .are .covered .in .myelin .sheaths .that .are .lipid .m
aterial, .the .myelin .sheaths .are .interrupted .in .certain .spots .by .the .nodes .of .Ranvier
* .Myelin .sheath- .allows .impulses .to .flow .between .the .nodes .of .Ranvier .in .an .increased .velocity .call
ed .the .salutatory .conduction.
* .mature .neurons .do .not .replicate .and .injury .to .them .is .permanent
* .grey .matter
Sensory .neurons .- .(correct .answer) .-afferent .neurons .that .carry .impulses .to .the .CNS
motor .neurons .- .(correct .answer) .-efferent .neurons .that .carry .away .from .the .CNS
associational .neurons .- .(correct .answer) .-
transmit .impulses .form .neuron .to .neuron .and .only .found .in .the .CNS
axonal .reaction .- .(correct .answer) .-process .in .which .the .peripheral .nerves .are .capable .of .self .repair
neuroglia .- .(correct .answer) .-4 .different .types
- .astrocytes
- .oligodendroglia
- .microglia
- .ependymal .cells
neuroglia- .astrocytes .- .(correct .answer) .-* .fill .space .between .neurons .and .surround .blood .vessels
* .part .of .the .blood .brain .barrier
* .provide .rapid .transport .for .nutrients
QUESTIONS AND ANSWERS
12 .Cranial .nerves .- .(correct .answer) .-1. .Olfactory
2. .Optic
3. .Oculomotor
4. .Trochlear
5. .Trigeminal
6. .Abducens
7. .Facial
8. .Vestibulocochlear
9. .Glossopharyngeal
10. .Vagus
11. .Accessory
12. .Hypoglossal
Afferent .nerves .- .(correct .answer) .-
sensory .nerves .that .carry .impulses .from .the .cells, .tissues, .and .organs .to .the .CNS .system.
Efferent .nerves .- .(correct .answer) .-
carry .impulses .from .the .CNS .to .cells, .tissues, .and .organs, .motor .nerve
Central .Nervous .System .- .(correct .answer) .-brain .and .spinal .cord
peripheral .nervous .system .- .(correct .answer) .-*12 .cranial .nerves .and .31 .spinal .nerves .
*further .subdivided .into .the .somatic .nervous .system .and .the .autonomic .nervous .system
* .PNS .has .the .afferent .and .efferent .pathways
Neuron .- .(correct .answer) .-* .basic .functional .unit .of .the .nervous .system
, * .fueled .by .glucose
* .3 .parts .to .a .neuron
- .cell .body
- .dendrite
- .axon
* .mostly .in .the .CNS .and .called .nuclei .in .a .group
* .in .the .PNS .the .groups .are .called .ganglia .or .plexus
* .dendrites- .projections .that .collect .information .and .direct .it .to .the .cell .body
* .Axon- .conducts .impulses .to .the .next .neuron, .axons .are .covered .in .myelin .sheaths .that .are .lipid .m
aterial, .the .myelin .sheaths .are .interrupted .in .certain .spots .by .the .nodes .of .Ranvier
* .Myelin .sheath- .allows .impulses .to .flow .between .the .nodes .of .Ranvier .in .an .increased .velocity .call
ed .the .salutatory .conduction.
* .mature .neurons .do .not .replicate .and .injury .to .them .is .permanent
* .grey .matter
Sensory .neurons .- .(correct .answer) .-afferent .neurons .that .carry .impulses .to .the .CNS
motor .neurons .- .(correct .answer) .-efferent .neurons .that .carry .away .from .the .CNS
associational .neurons .- .(correct .answer) .-
transmit .impulses .form .neuron .to .neuron .and .only .found .in .the .CNS
axonal .reaction .- .(correct .answer) .-process .in .which .the .peripheral .nerves .are .capable .of .self .repair
neuroglia .- .(correct .answer) .-4 .different .types
- .astrocytes
- .oligodendroglia
- .microglia
- .ependymal .cells
neuroglia- .astrocytes .- .(correct .answer) .-* .fill .space .between .neurons .and .surround .blood .vessels
* .part .of .the .blood .brain .barrier
* .provide .rapid .transport .for .nutrients
