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Topic 6-11 > Nervous System > Flashcards

Nervous System Flashcards

1
Q

Consists everything outside CNS. Carries info to CNS and instructions from CNS to effectors

A

Peripheral nervous system

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2
Q

Nervous system consists of the brain and spinal cord; the integrating center

A

Central nervous system

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3
Q

Aka nerve cell. Conduct electrical impulses. Functional units of nervous system

A

Neurons

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4
Q

Aka glia. Cells in brain and spinal cord that support and protect neurons

A

Neuroglia

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5
Q

Aka Electrical impulses

A

Action potentials

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6
Q

Aka cell body. Part of neuron containing organelles

A

Soma

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7
Q

Aka nerve fibre. An extension of the neuron that carries signals away its cell body

A

Axon

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8
Q

Entention of neuron carrying signals towards its cell body

A

Dendrite

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9
Q

Bundle of axons in the PNS

A

Nerve

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10
Q

Bundle of nerve fibers in the CNS

A

Tract

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11
Q

A white, fatty material that insulates axons

A

Myelin

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12
Q

Site of communication between two neurons transmitting signals

A

Synapse

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13
Q

The chemical molecules during synapse

A

Neurotransmitters

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14
Q

Aka cerebrum. Right and left brains each containing 4 lobes

A

Cerebral hemisphere

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15
Q

Lobe controlling the conscious movements and thinking

A

Frontal lobe

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16
Q

Lobe controlling pain and touch analysis

A

Parietal lobe

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17
Q

Lobe controlling hearing and smell analysis

A

Temporal lobe

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18
Q

Lobe controlling visual analysis

A

Occipital lobe

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19
Q

Lost of brain function due to impaired cerebral blood supply

A

Stroke

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20
Q

Group of structures in brain associating with emotions and memory

A

Limbus system

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21
Q

Most anterior segment of vertebrae

A

Body

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22
Q

Attachments located between vertebrae body and transverse process

23
Q

Two plates forming roof of spinal canal

24
Q

Formed by the junction of the laminae

A

Spinous process

25
Laterally projecting off both sides of verebrae
Transverse process
26
Defect in spinal column from non-fusion of lamina causing spinal cord tissue to protrude
Spina bifida
27
Type of nerve of the PNS carrying info to and from spinal cord (consists 31 pairs)
Spinal nerves
28
Nerve carry both incoming and outgoing signals from the CNS
Mixed nerve
29
Aka vertebrae column to house and protect spinal cord (consists of 24 columns)
Articulating vertebrae
30
Consists of 7 columns top of vertebrae
Cervical vertebrae
31
Consists of 12 columns middle of vertebrae
Thoracic vertebrae
32
Consists of 5 columns bottom of vertebrae
Lumbar vertebrae
33
A triangular bone at base of spinal column between hip bones
Sacrum
34
Aka tailbone
Coccyx
35
Links to CNS. 12 pairs of nerves connecting to the brain stem
Cranial nerves
36
Aka. Incoming sensory neurons. Nerve cells conduct impulses from the periphery of the body to the CNS
Afferent Nerves
37
Nerve cells conduct impulses from the periphery of the body to the CNS. Sensory division
Sensory neurons
38
Aka. Outgoing motor neurons. Nerve cells conduct impulses from the CNS to the effector
Efferent Neurons
39
Nerve cells conduct impulses from the CNS to the effector. Motor division
Motor neurons
40
Motor division of the PNS: motor neurons to skeletal muscles
Somatic nervous system (SNS)
41
Motor division of PNS: motor neurons to blood vessels, heart, smooth muscles, viscera, and glands
Autonomic nervous system (ANS)
42
Motor division of PNS: controls GI tract activity. Functions independently of ANS and CNS
Enteric nervous system
43
ANS division: "fight or flight" - increase heart rate
Sympathetic nervous system
44
ANS division: "resting and digesting" - decrease heart rate
Parasympathetic nervous system
45
A disease of the CNS. Inflammation of nervous tissue causing demyelination
Multiple Sclerosis
46
Aka scar tissue
Sclerosis
47
Study of causes or origins
Etiologies
48
Aka. Tinging sensation
Paresthesia
49
Lost of coordination of the muscles
Ataxia
50
Partial motor paralysis
Paresis
51
Extreme dizziness
Vertigo
52
Term for likely to change
Lability
53
Difficult in speech articulation from poor muscular control
Dysarthria

Topic 6-11 (5 decks)

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