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General Biology > NERVOUS TISSUES > Flashcards

NERVOUS TISSUES Flashcards

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1
Q

makes up the central nervous system and peripheral
nervous system

A

NERVOUS TISSUES

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2
Q

★ cell of nervous tissue
longest cell in our body
★ amitotic - don’t divide

A

NEURONS

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3
Q

★ basic structural unit of the nervous system

A

NEURONS

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4
Q

★ where electrical impulses from our brain transmit

A

NEURONS

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5
Q

scattered in its cytoplasm

A

SMOOTH MUSCLE

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6
Q

★ where subcellular organelles are

A

soma / cell body

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7
Q

○ extensions on the cell body
○ receives signals

A

dendrites

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8
Q

○ attached to the axon hillock
○ electrochemical signals will be transmitted away
from the cell body

A

★ axon

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9
Q

○ where the electrical impulses come out that will be
caught by other neurons or dendrites of other
neurons (because they are connected)

A

★ axon terminal

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10
Q

wrapped around the axon
○ allows impulses to transmit quickly and effciently
along the neuron

A

★ myelin sheath

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11
Q

★ one way of process
★ specialized in sensory neurons

A

UNIPOLAR

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12
Q

★ two-way process
★ vision, olfaction, audition (senses)

A

BIPOLAR

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13
Q

★ most abundant neuron in our body
★ possess single axon, many dendrites and axon terminals
★ allow great deal of information from one neuron to
another
★ paggalaw

A

MULTIPOLAR

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14
Q

★ scientists thought that this was a part of neuron
★ support neurons

A

GLIAL CELL

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15
Q

★ star-shaped cells

A

ASTROCYTES

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16
Q

★ maintain the chemical concentration from our
extracellular space that is involved in waste disposal of
neurons
★ repair the damaged tissue

A

ASTROCYTES

17
Q

★ ovoid cells
★ can transform into a phagocytic macrophage to clean
neuronal debris and wastes

A

MICROGLIAL CELLS

18
Q

★ line the central cavities of the brain and the spinal cord
★ cerebral spinal fluid
○ where nutrients from the brain are suspended
○ protects the brain
★ clean the cerebral spinal fluid and tissues

A

EPENDYMAL MICROGLIAL CELLS

19
Q

★ production of the myelin sheath
○ faster electrical impulses

A

OLIGODENDROCYTES

20
Q

SATELLITE CELLS

A

★ surround sensory and autonomic ganglia

regulate the microenvironment of our peripheral nervous
system

21
Q

★ production of myelin sheath in the PNS

A

SCHWANN CELLS

General Biology (9 decks)

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