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Body Logistics > Nervous Sytem > Flashcards

Nervous Sytem Flashcards

1
Q

What is the name of the CT wrapping nerve cells

A

Endoneurium

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2
Q

What is the name of the CT enclosing fascicles

A

Perineurium

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3
Q

What is the name of the. t enclosing the spinal cord?

A

Epineurium

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4
Q

What are the 3 types of neurones

A

Sensory, interneurones and motor neurones

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5
Q

What are the 2 subsystems making up the peripheral nervous system

A

Somatic and autonomic

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6
Q

What are the 2 subsystems making up the autonomic system

A

Sympathetic and parasympathetic

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7
Q

What is the cerebellum in control of

A

Fine movement and posture

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8
Q

What is the brainstem involved in

A

Regulation of breathing and cardiovascular functions

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9
Q

What is a ganglion

A

Collection of nerve cell bodies in the PNS

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10
Q

What is grey matter composed of?

A

Neurones

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11
Q

What is the function of grey matter?

A

Where information processing takes place

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12
Q

What is white matter composed of

A

Axons

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13
Q

What is the function of white matter

A

Connects grey matter

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14
Q

What is the shape of a sensory neurone

A

Pseudounipolar

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15
Q

What is the advantage of being a pseudounipolar cell

A

Impulses can travel faster as they don’t have to cross a cell body

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16
Q

Apart from neurones what is the other group of cells in the nervous system

A

Glia

17
Q

Name 4types of glia cells

A

Schwann cells, oligodendrites, microglia and Astroblasts

18
Q

What is the role of microglia

A

Look for damaging substance and once they detect something they bring their processes in and become activated to work like macrophages

19
Q

What is the role of astroblasts

A

Create the blood brain barrier but stimulating tight junctions. Also clear excess neurotransmitter to prevent unwanted action potentials

20
Q

Where are microglia found?

A

CNS

21
Q

Where are astroblasts found

A

CNS

22
Q

Where are oligodendrites found?

A

CNS

23
Q

What is the role of oligodendrites

A

To myelinate many axons at once

24
Q

Where are Schwann cells found

A

PNS

25
Q

What is the role of Schwann cells

A

Myelinate 1 axon

26
Q

Describe how a cell in the PNS becomes myelinated

A

A Schwann cell wraps around the axon many times, forcing cytoplasm out so that there’s many layers of membrane and cytoplasm

27
Q

Describe a non myelinated neurone

A

Many axons are loosely invaginate by a single Schwann cell

Body Logistics (18 decks)

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