Test 2 Spring Flashcards

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1
Q

HOW MANY CATEGORIES ARE THERE OF NERVOUS SYSTEM CELLS?

A

2 BROAD CATEGORIES

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2
Q

NAME THE 2 CATEGORIES OF NERVOUS SYSTEM CALLS.

A

NEURONS AND GLIAL CELLS

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3
Q

HOW MANY TYPES OF NEURONS ARE THERE?

A

3 TYPES

  • SENSORY NEURONS
  • INTER-NEURONS NEURONS
  • MOTOR NEURONS
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4
Q

WHAT IS THE FUNCTION OF SENSORY NEURONS?

A

TAKE IN THE INFORMATION AROUND THEM FROM OTHER CELLS (SENSE)

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5
Q

WHAT IS THE FUNCTION OF INTERNEURONS? WHAT DO THEY DO?

A

INTERNEURONS INTEGRATE INFORMATION (INTERPRETS AND SUMS UP INFORMATION)

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6
Q

WHAT DO MOTOR NEURONS DO?

A

MOTOR NEURONS ENACT FUNCTION AND RESPONSE

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7
Q

WHAT IS AN EXAMPLE THAT USES ALL 3 NEURONS?

A

KNEE JERK REACTION

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8
Q

WHAT TYPE OF CELL IS A EPENDYMAL CELL AND ITS FUNCTION?

A

GLIAL CELL

STRUCTURAL SUPPORT

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9
Q

WHAT TYPE OF CELL IS A SCHWANN CELL AND ITS FUNCTION?

A

INSULATION OF NEURONS

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10
Q

WHAT TYPE OF CELL IS A OLIGODENDROCYTES AND ITS FUNCTION?

A

INSULATION OF NEURONS

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11
Q

GLIAL CELLS ALSO FUNCTION AS

A

MAINTAINING CONCENTRATION OF IONS AND CHEMICALS AROUND THE NEURONS
NEURONAL MAINTENANCE

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12
Q

WHAT DO ASTROCYTES DO? WHAT TYPE OF CELL ARE THEY?

A

THEY FORM BLOOD-BRAIN BARRIER AND ARE GLIAL CELLS

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13
Q

WHAT TYPE OF CELL IS A RADIAL AND WHAT IS THE FUNCTION?

A

THEY PROVIDE A PATH FOR DEVELPOPING NEURONS

GLIAL CELL

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14
Q

WHICH CELLS OUT OF THE TWO THAT PROVIDE INSULATION OF NEURONS ARE IN THE CENTRAL NERVOUS SYSTEM?

A

OLIGODENDROCYTES

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15
Q

WHICH CELLS OUT OF THE TWO THAT PROVIDE INSULATION OF NEURONS ARE IN THE PERIPHERAL NERVOUS SYSTEM?

A

SCHWANN CELLS

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16
Q

NEURON ANATOMY:

-FINGERS

A

DENDRITES

-RECEIVING SIGNALS

17
Q

NEURON ANATOMY:

-PALM OF HAND

A

CELL BODY

-INFORMATION MEETS AND SUMS UP INOFRMATION

18
Q

NEURON ANATOMY:

-WRIST

A

AXON HILLOCK

-WHERE WE GET TO THRESHOLD AND GET ACTION POTIENTAL

19
Q

NEURON ANATOMY:

-ARM

A

AXON

20
Q

NEURON ANATOMY:

-ARM W/ SLEEVE

A

MYELIN SHEATH

21
Q

NEURON ANATOMY:

-ARM W/ GAPS

A

NODE OF RANVIEN

-ALLOW FOR SALUTATORY CONDUCTION

22
Q

DO ALL NEURONS HAVE NODE OF RANVIEN?

A

NO

23
Q

NEURON ANATOMY:

-FINGERS ON OTHER HAND

A

AXON TERMINALS

SPIT OUT NEURON TRANSMITTER

24
Q

DO AXON CELLS RECEIVE OR SEND INFORMATION AWAY?

A

AWAY FROM CELL BODY

25
Q

DO DENDRITES CELLS RECEIVE OR SEND INFORMATION AWAY?

A

RECIEVE

26
Q

TRUE OR FALSE

THE NUMBER OF COMPLEXITY OF DENDRITES IS CORRELATED WITH THE AMOUNT OF INPUT THE NEURON RECEIVES.

A

TRUE

27
Q

WHAT IS MEMBRANE POTENTIAL?

A

RELATIVE CHARGE BETWEEN INSIDE AND OUTSIDE

28
Q

WHAT IS RESTING POTENTIAL?

A

-70mV

29
Q

WHAT IS DEPOLARIZATION?

A

WHEN CELL BECOME MORE ACTIVE; MORE POSITIVE CLOSER TO ZERO

30
Q

WHAT IS HYPER POLARIZATION?

A

WHEN CELL BECOMES MORE POLAR, MORE NEGATIVE
LESS ACTIVE
FARTHER FROM 0