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Anatomy: Head and neck > CNS > Flashcards

CNS Flashcards

1
Q

Ganglion

A

= collection of cell bodies located outside the CNS.

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2
Q

Nucleus

A

= collection of cell bodies located inside the CNS.

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3
Q

Gray matter

A

area of unmyelinated neurons

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4
Q

White matter

A

myelinated fiber tracts

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5
Q

Myelinated fibers found in..

A

Peripheral nerves

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6
Q

Non-myelinated fibers found in…

A

Brain and spinal cord.

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7
Q

Sensory neurons..

A

carry signals from outher parts of body (periphery) into CNS.

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8
Q

Motor neurons

A

= carry signals from CNS to the outer parts (muscle, skin, glands)

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9
Q

Myelin is made of..

A

fat

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10
Q

Function of Myelin..

A

speed transmission of nerve impulse down a long axon

is made of fat.

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11
Q

Bipolar

A

Interneuron

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12
Q

Unipolar

A

= Sensorsy Neuron

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13
Q

Multipolar

A

Motorneuron

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14
Q

Interneurons

A

connect neurons within the brain and spinal cord

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15
Q

Meninges

A

= membranes that sourrounds brain and spinal cord

1. Pia mater - innermost

2. Arachnoid mater

3. Dura mater - outermost

  1. Bone
  2. Periosteum
  3. Aponeurosis
  4. Skin
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16
Q

Spaces

A

Epidural: fat filled

  • external to the dura

Subdural: serous fluid

Subarachnoid: filled with CSF

  • between pia mater and arachnoid
17
Q

Neuroganglia

A

= glial cells or simply glia, non-neuronal cells. in the CNS ans PNS which form Myelin and provide support and protection for neurons.

18
Q

What structute is this?

A

Basila artery

19
Q

What structure is this?

A

Spinal cord

20
Q

What structure is the following?

A
  1. Olfactory nerve
  2. Optic nerve
  3. Trigeminus n. ?
21
Q

Dura mater is composed of the following layers:

A
  1. Brain meninges
  2. Spinal Cord Meningeal
22
Q

Explain the picture:

A
23
Q

Conus modullaris

A

inferior end of spinal cord proper

  • ends between L1 ansd L2
24
Q

Cauda equina

A

origin of spinal nerves extending inferiorly from conus medullaris

25
Q
A

Anatomy: Head and neck (4 decks)

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