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Histo lab > Lesson 7 > Flashcards

Lesson 7 Flashcards

1
Q

The _______ is widely distributed in the body and involves most organs.

A

nervous system

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2
Q

All of our actions, thoughts and emotions can be boiled down into three
principal functions – sensory input , integration and motor output.

A

SENSORY – INTEGRATION – MOTOR OUTPUT

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2
Q

SENSORY INPUT
* Special Senses
* Eyes -

A

Sight

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3
Q

SENSORY INPUT
* Special Senses
* Nose -

A

Smell

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4
Q

SENSORY INPUT
* Special Senses
* Tongue -

A

Taste

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5
Q

SENSORY INPUT
* Special Senses
* Ear -

A

Hearing

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6
Q

SENSORY INPUT
* Special Senses
* Skin –

A

Touch

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7
Q

The nervous system processes that input, and decides what should be done
about it.
“Fight or flight

A

INTEGRATION

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7
Q

The response that occurs when your nervous system activates certain parts of
your body

A

MOTOR OUTPUT

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7
Q

TWO MAIN CATEGORIES OF NERVOUS SYSTEM

A
  1. Central Nervous system
  2. Peripheral Nervous system
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8
Q

MAIN CATEGORIES OF NERVOUS SYSTEM
brain and spinal cord

A

. Central Nervous system

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8
Q

MAIN CATEGORIES OF NERVOUS SYSTEM
Nerves

A

. Peripheral Nervous system

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9
Q

MAIN CATEGORIES OF NERVOUS SYSTEM
picks up sensory stimuli

A

Sensory Division / Afferent

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10
Q

MAIN CATEGORIES OF NERVOUS SYSTEM
sends signals from the CNS (brain & spinal
cord) to the rest of the body

A

Motor Division / Efferent

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11
Q

MAIN CATEGORIES OF NERVOUS SYSTEM

voluntary

A

Somatic

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12
Q

MAIN CATEGORIES OF NERVOUS SYSTEM

involuntary

A

Autonomic

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13
Q

MAIN CATEGORIES OF NERVOUS SYSTEM

fight or flight

A

Sympathetic

14
Q

MAIN CATEGORIES OF NERVOUS SYSTEM
Heart beat, peristalsis (movement of intestine
muscles)

A

Parasympathetic

15
Q

TWO MAIN CELLS

A

Neuron
Microglial / Neuroglia / Glial
cells

16
Q

receive stimuli and
send signals

A

Neuron

17
Q

protects, nourishes,
insulates and helps the neuron
send signals

A

Microglial / Neuroglia / Glial
cells

18
Q

GLIAL CELL TYPES
Central Nervous System

A
  1. Astrocytes
  2. Microglial cells
  3. Ependymal cells
  4. Oligodendrocytes
18
Q

GLIAL CELL TYPES
Peripheral Nervous System

A
  1. Satellite cells
  2. Schwann cells
18
Q
  • Most abundant glial cells
A

ASTROCYTES

19
Q
  • Provide immune defense for against
    invading microorganisms in the brain
    and spinal cord
A

MICROGLIAL CELLS

20
Q
  • Create, secrete and circulate CSF
    (Cerebrospinal fluid)
A

EPENDYMAL CELLS

20
Q

Produce an insulating barrier called
myelin sheath

A

OLIGODENDROCYTES

20
Q

Surround and support neuron cell
bodies

A

SATELLITE CELLS

20
Q

Wrap around axons and produce an
insulating barrier called myelin sheath

A

SCHWANN CELLS

21
Q
  1. Longest lived cells
A

NEURONS

22
Q
A
23
Q
  • Cell body
  • Life support
  • Contains organelles
    such as nucleus and
    mitochondria
A

SOMA

23
Q
  • Pick up signals and
    convey them to the
    soma
A

DENDRITES

24
Q
  • Long extension
  • Transmit electrical
    impulses away from the
    cell body to the other
    cells
A

AXON

25
Q

These contain three or
more processes from the
soma including one axon
and several dendrites.

A

MULTIPOLAR NEURON

25
Q

________ have two
processes one axon and
one dendrite extending
from the soma.
Can be found in retina of
the eye

A

BIPOLAR NEURON

26
Q

_______neurons have
only one process.
Usually seen in sensory
receptors.

A

UNIPOLAR NEURON

26
Q

_________ pick
up sensory stimuli from sensory
receptors (skin, eyes) and sends
them towards the CNS.

Most sensory neurons are _________

A

Sensory or Afferent neurons

unipolar

27
Q

Association neurons which live within the CNS
These transmit signals or impulses between sensory and motor neurons

A

INTERNEURONS

27
Q

___________
signals from the CNS (brain) to the
rest of the body (muscles or
glands).
Most abundant
Mostly multipolar

A

Motor or efferent neurons sends

Histo lab (8 decks)

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