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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

A

Pedicles

23
Q

Two plates forming roof of spinal canal

A

Laminae

24
Q

Formed by the junction of the laminae

A

Spinous process

25
Q

Laterally projecting off both sides of verebrae

A

Transverse process

26
Q

Defect in spinal column from non-fusion of lamina causing spinal cord tissue to protrude

A

Spina bifida

27
Q

Type of nerve of the PNS carrying info to and from spinal cord (consists 31 pairs)

A

Spinal nerves

28
Q

Nerve carry both incoming and outgoing signals from the CNS

A

Mixed nerve

29
Q

Aka vertebrae column to house and protect spinal cord (consists of 24 columns)

A

Articulating vertebrae

30
Q

Consists of 7 columns top of vertebrae

A

Cervical vertebrae

31
Q

Consists of 12 columns middle of vertebrae

A

Thoracic vertebrae

32
Q

Consists of 5 columns bottom of vertebrae

A

Lumbar vertebrae

33
Q

A triangular bone at base of spinal column between hip bones

A

Sacrum

34
Q

Aka tailbone

A

Coccyx

35
Q

Links to CNS. 12 pairs of nerves connecting to the brain stem

A

Cranial nerves

36
Q

Aka. Incoming sensory neurons. Nerve cells conduct impulses from the periphery of the body to the CNS

A

Afferent Nerves

37
Q

Nerve cells conduct impulses from the periphery of the body to the CNS. Sensory division

A

Sensory neurons

38
Q

Aka. Outgoing motor neurons. Nerve cells conduct impulses from the CNS to the effector

A

Efferent Neurons

39
Q

Nerve cells conduct impulses from the CNS to the effector. Motor division

A

Motor neurons

40
Q

Motor division of the PNS: motor neurons to skeletal muscles

A

Somatic nervous system (SNS)

41
Q

Motor division of PNS: motor neurons to blood vessels, heart, smooth muscles, viscera, and glands

A

Autonomic nervous system (ANS)

42
Q

Motor division of PNS: controls GI tract activity. Functions independently of ANS and CNS

A

Enteric nervous system

43
Q

ANS division: “fight or flight” - increase heart rate

A

Sympathetic nervous system

44
Q

ANS division: “resting and digesting” - decrease heart rate

A

Parasympathetic nervous system

45
Q

A disease of the CNS. Inflammation of nervous tissue causing demyelination

A

Multiple Sclerosis

46
Q

Aka scar tissue

A

Sclerosis

47
Q

Study of causes or origins

A

Etiologies

48
Q

Aka. Tinging sensation

A

Paresthesia

49
Q

Lost of coordination of the muscles

A

Ataxia

50
Q

Partial motor paralysis

A

Paresis

51
Q

Extreme dizziness

A

Vertigo

52
Q

Term for likely to change

A

Lability

53
Q

Difficult in speech articulation from poor muscular control

A

Dysarthria

Topic 6-11 (5 decks)

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