Nervous System Flashcards

1
Q

Primary functional cell of the nervous system

A

Neuron

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2
Q

Supporting cells, e.g. astrocytes

A

Neuroglia

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3
Q

Something that excites or activates.

A

Stimulus

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4
Q

A wave of excitation transmitted through nervous tissue.

A

Impulse

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5
Q

An automatic, involuntary response to change.

A

Reflex

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6
Q

Cell body (Cell life support center)

A

Soma

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7
Q

Transmit electrical signals toward the cell body

Receives message from other cells

A

Dendrites

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8
Q

Conduct electrical signals away from the cell body

Passes message away form the cell body

A

Axon

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9
Q

Covers the axon of some neurons and helps speed neural impulses.

A

Myelin Sheath

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10
Q

Functional Classification of neuron

A

Sensory or afferent
Motor or efferent
Interneurons or association neurons

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11
Q

Neurons conduct signals from receptors to the CNS

A

Sensory (afferent)

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12
Q

Neurons conduct signals from the CNS to effectors such as muscle and glands

A

Motor (efferent)

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13
Q

Neurons confined to the CNS

A

Interneurons (association neurons)

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14
Q

Neuron Structural Classification

A

Unipolar
Bipolar
Pseudounipolar
Multipolar

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15
Q

Peripheral nervous system

A

Satellite cell
Schwann Cells

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16
Q

Central nervous system

A

Oligodendrocytes
Astrocytes
Microglia
Ependymal cell

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17
Q

Regulate extracellular brain fluid composition; promote tight junctions to form blood-brain barrier.

A

Astrocytes

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18
Q

Line brain ventricles and spinal cord central canal; help form choroid plexuses that secrete CSF.

A

Ependymal cell

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19
Q

Specialized macrophage

A

Microglia

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20
Q

Form the myelin sheaths that surrounds axon of neurons in the CNS.

A

Oligodendrocytes

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21
Q

Wrap around portion of only one axon to form myelin sheath of the neuron in the PNS.

A

Schwann cells or neurolemmocytes

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22
Q

Surround neuron cell bodies in ganglia; provide support and nutrients.

A

Satellite cells

23
Q

Arachnoid plus the pia mater

A

Leptomeninx

24
Q

Spinal Cord Divided into

A
  • Divided into
  • Cervical part
  • Thoracic part
  • Lumbar part
  • Sacral part
  • Caudal or coccygeal part
25
Letter H; Inner /deep, composed mainly of nerve cell bodies
Gray matter/substance
26
Superficially; nerve fibers predominate
White matter/substance
27
Largest part of the brain Touch, vision, hearing reasoning, emotions learning & time control movements
Cerebrum
28
Co-ordinate muscle movements, maintain posture, and balance.
Cerebellum
29
Includes medulla oblongata, pons, mesencephalon and the diencephalon. Relay center connecting the cerebrum and cerebellum to spinal cord, breathing and etc.
Brain stem
30
Movement
Motor cortex
31
Pain, heat, and other sensations
Sensory cortex
32
Comprehension of language
Parietal lobe
33
Hearing
Temporal lobe
34
Primary visual area
Occipital lobe
35
Speech comprehension
Wernickes area
36
Coordination
Cerebellum
37
Swallowing, breathing, heartbeat and etc... involuntary movement
Brain stem
38
Intellectual and emotional functions
Temporal lobe
39
Smell Judgement, foresight and voluntary movement
Frontal lobe
40
Speech
Broca's area
41
Controls body temperature, reproductive functions, eating, sleeping, and the display of emotions.
Forebrain (prosencephalon)
42
Associated with vision, hearing, motor control, sleep/wake, arousal (alertness), and temperature regulation.
Midbrain (mesencephalon)
43
Controls functions outside conscious control, such as breathing and blood flow.
Hindbrain (rhombencephalon)
44
Are the nerves that emerge directly from the brain (Including the brainstem).
Cranial nerve
45
Smell
Olfactory
46
Vision
Optic
47
Eye movements
Oculomotor Trochlear Abducens
48
Facial touch, temperature, and pain
Trigeminal
49
Chewing, saliva production, taste bud
Facial
50
Maintain equilibrium, hearing
Vestibulocochlear
51
Throat, tongue movement, swallowing
Glossopharyngeal
52
Heart and lung signal
Vagus
53
Neck muscle motor function
Accessory
54
Tongue and chewing movement, speech
Hypoglossal