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Human Anatomy & Physiology > Nervous Tissue > Flashcards

Nervous Tissue Flashcards

1
Q

What are the 3 main functions of the nervous system?

A

Sensory, Integrative, and Motor

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2
Q

What are the 2 major divisions?

A

Central and Peripheral Nervous System

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3
Q

What does the CNS include?

A

Brain and Spinal Cord

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4
Q

What does the PNS include?

A

Cranial Nerves, Spinal Nerves, Ganglia, Sensory Receptors

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5
Q

What division is the source of thoughts, emotions, and memories?

A

Central Nervous System

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6
Q

How many cranial nerves are in the PNS?

A

12 pairs

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7
Q

How many spinal nerves are in the PNS?

A

31 pairs

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8
Q

What can the PNS be further divided into?

A

Somatic, Autonomic, and Enteric NS

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9
Q

What are two types of nerve cells?

A

Neurons and Neuroglia

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10
Q

What neuroglia of CNS are the most common and form myelin sheath around more than one axon?

A

Oligodendrocytes

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11
Q

What neuroglia of CNS attach to blood vessels forming a blood-brain barrier that prevents harmful things to enter?

A

Astrocytes

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12
Q

Largest and most numerous neuroglia of CNS?

A

Astrocytes

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13
Q

What neuroglia of CNS play a part in memory and learning?

A

Astrocytes

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14
Q

Neuroglia of CNS that engage in phagocytosis of cellular debris and damaged nervous tissue?

A

Microglia

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15
Q

Neuroglia of CNS that produce cerebrospinal fluid

A

Ependymal

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16
Q

Neuroglia of PNS that produce myelin sheath around single axons

A

Shwann Cells

17
Q

Neuroglia of PNS that support neurons in the ganglia

A

Satellite Cells

18
Q

What are the 3 distinct portions of neurons?

A

Cell body, Dendrites, and Axon

19
Q

Also called soma; contains a single nucleus and granular cytoplasm

A

Cell body

20
Q

Receive stimuli and convey nerve impulses

A

Dendrite

21
Q

Conducts impulses from the neuron to the dendrites of another neuron

A

Axon

Human Anatomy & Physiology (1 decks)

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