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TOB II > Neurones > Flashcards

Neurones Flashcards

1
Q

What are the membranous coverings of the cranial and spinal nerves?

A 
Dura mater (outside)
Arachnoid mater
Pia mater (inside)
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2
Q

What does a leptomeninge refer to?

A

The Dura mater and Arachnoid mater

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3
Q

What are the membranous envelopes of cranial and spinal nerves?

A

Epineurium (outer)
Perineurium
Endoneurium (inner)

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4
Q

What does the cell body of a neurone contain?

A

Nucleus
Nissel substance
Golgi apparatus

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5
Q

What are dendrites?

A

Specialisations of the cell body that increase surface area.

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6
Q

What are the 3 types of neurones?

A

Multipolar
Bipolar
Unipolar/Pseudopolar

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7
Q

Where can you find Bipolar neurones?

A

The retina of the eye

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8
Q

Where can you find Unipolar neurones?

A

They are primary sensory neurones

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9
Q

What is the most common form of neurone?

A

Multipolar

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10
Q

What is input summation?

A

Where the inputs converge

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11
Q

What is temporal summation?

A

Summated with respect to their time of arrival at the cell body/dendrites

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12
Q

What is spatial summation?

A

Summated with respect to their location on the cell body or dendrites

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13
Q

What is an excitatory neurone?

A

Causes its following cell to be depolarised

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14
Q

What is an inhibitory neurone?

A

Causes its following cell to be hyperpolarised

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15
Q

What are the two types of Neuroglia?

A

Microglia

Macroglia

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16
Q

What are the neuroglia of the CNS?

A

Astrocytes
Oligodendrocytes
Ependyma
Microglia

17
Q

What is the function of the Astrocytes?

A

Transfer nutrients and waste between blood and neurone

18
Q

What is the function of Oligodendrocytes?

A

Myelination

19
Q

What is the function of Microglia?

A

Immunity and inflammation

20
Q

What are the neuroglia of the PNS?

A

Schwann cells
Satellite cells
Microglia

21
Q

What is the function of Schwann cells?

A

Myelination

22
Q

What is the function of Satellite cells?

A

Physical support of the neurone

23
Q

What is the function of Microglia?

A

Immunity and inflammation

TOB II (15 decks)

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