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Anatomy > Nervous Tissue > Flashcards

Nervous Tissue Flashcards

1
Q

What is the in central nervous tissue?

A

Brain and spinal cord

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2
Q

What is in the peripheral nervous system?

A

Cranial nerves spinal nerves and ganglia

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3
Q

What are the functions of the nervous systems?

A

Collect info, process CNS input, and respond via PNS

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4
Q

What is responsible for receiving sensory info form receptors and transmitting info to the CNS?

A

Sensory (Afferent) division

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5
Q

What is responsible for transmitting motor impulses from the CNS to muscles or glands?

A

Motor (Efferent) division

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6
Q

What are the exitable cells that initiate and transmit nerve impulses?

A

Neurons

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7
Q

What are nonexitable cells that support and protect the neurons?

A

Glial cells

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8
Q

What serves as the neurons control center and is responsible for receiving integrating and sending nerve impulses?

A

Cell body

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9
Q

What branches off the cell body and conducts nerve impulses towards the cell body?

A

Dendrites

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10
Q

What transmits nerve impulses away from the cell body?

A

Axon

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11
Q

What makes glial cells different from neurons?

A

They are smaller and capable of mitosis

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12
Q

What has cell processes that wrap around the outer surface of capillaries in the brain to make them more selectivdly permeable?

A

Astrocytes

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13
Q

What is the most abundant glial cell in the CNS?

A

Astrocytes

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14
Q

What cells line the internal cavities of the brain and the central canal of the spinal cord?

A

Ependymal

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15
Q

What two cells produce the insulting material “myelin”?

A

Oligodendrocytes

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16
Q

What surounds the neurons in the nervous system?

A

Myelin

17
Q

What type of material is myelin?

A

White fatty and insulated

18
Q

What is a bundle of parallel axons?

A

Nerves

19
Q

What are nerves that convey sensory info to the central nervous system and all the axons conducts impulses in the same direction?

A

Sensory nerves

20
Q

What nerves convey motor impulses from the CNS to the muscles and glands and has all the axons conducting impulses in the same direction?

A

Motor nerves

21
Q

What nerves carry both types of info and some axons transmit impulses in one direction while the other transmits in the opposite?

A

Mixed nerves

22
Q

What type of nerves are spinal nerves?

A

Mixed nerves

23
Q

What appears in the developing tissue and fused with the midline?

A

Neural groove

Anatomy (18 decks)

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