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Hubs- Neuro > L-17 > Flashcards

L-17 Flashcards

1
Q

What are the two main types of transmitted information?

A
  • Somatic

- Autonomic

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2
Q

What is somatic efferent information?

A

Voluntary muscle movement and control

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3
Q

What is somatic afferent information?

A

Sensory information we are aware of ( eyesight)

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4
Q

What is autonomic efferent information?

A

Involuntary muscle control ( heartbeat)

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5
Q

What is autonomic afferent information?

A

Sensory information we are unaware of ( blood pressure)

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6
Q

How many neurons are involved in the somatic efferent division of the nervous system?

A

2

  • upper motor neuron
  • lower motor neuron
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7
Q

Where is the cell body and axon of the upper motor neuron?

A
  • cell body in brain

- axon in spinal chord

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8
Q

Where is the cell body and axon of the lower motor neuron?

A
  • cell body in spinal chord

- axon in spinal nerve (PNS)

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9
Q

where do the upper and lower motor neurons synapse and what neurotransmitter do they use?

A
  • Ventral horn of spinal chord

- ACh

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10
Q

Which axons is the somatic efferent division of the nervous system are myelinated

A

Both of them

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11
Q

What neurotransmitter is used in the synapse between the lower motor neuron and the muscle fibre?

A

ACh

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12
Q

What is the effector of the somatic efferent division of the nervous system?

A

Muscle fibre

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13
Q

What are the two subdivisions of the autonomic efferent nervous system?

A
  • sympathetic

- parasympathetic

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14
Q

How many neurons are between the brain and the effector in the autonomic efferent nervous system?

A

3

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15
Q

Where is the cell body and axon of neuron 1 in the autonomic efferent nervous system?

A
  • cell body in brain

- axon in brain/ CNS

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16
Q

Where is the cell body and axon of neuron 2 of the sympathetic nervous system?

A
  • cell body in brain/ CNS

- short axon in CNS that extends into PNS

17
Q

Where is the cell body and axon of neuron 3 of the sympathetic nervous system?

A
  • Cell body in PNS

- Long axon in PNS

18
Q

Which axons are myelinated in the autonomic efferent nervous system?

A

1 +2

19
Q

What are the potential effectors in the autonomic efferent nervous system (4)

A
  • smooth muscle
  • cardiac muscle
  • glands
  • adipose ( fat) tissue
20
Q

What is the purpose of the sympathetic efferent nervous system

A

Prepare the body for acute/ stress responses (fight or flight)

21
Q

What effects can occur from stimulation of the sympathetic efferent nervous system (6)

A
  • increased heart rate
  • constricting blood vessels
  • increased gastric motility
  • increased salivation
  • increased pupil size
  • increased sweating
22
Q

Where do neurons 1 + 2 synapse in the autonomic efferent nervous system and what neurotransmitter do they use?

A
  • CNS

- ACh

23
Q

Where do neurons 2+ 3 synapse in the sympathetic efferent nervous system and what neurotransmitter do they use?

A
  • Sympathetic ganglion

- ACh

24
Q

What neurotransmitter is used in the synapse between Neuron 3 and the effector in the sympathetic efferent nervous system?

A
  • NE
25
Q

Where is the cell body and axon of neuron 2 in the parasympathetic efferent nervous system?

A
  • cell body in CNS

- long axon extends into PNS

26
Q

Where is the cell body and axon of neuron 3 in the parasympathetic efferent nervous system?

A
  • Cell body in PNS close to effectors

- short axon in PNS

27
Q

Where do neurons 2+3 synapse in the parasympathetic efferent nervous system ad what neurotransmitter do they use?

A

Parasympathetic ganglion and ACh

28
Q

What neurotransmitter is used in the synapse between neuron 3 and the effector in the parasympathetic efferent nervous system?

A

ACh

29
Q

What is the purpose of the parasympathetic efferent nervous system?

A

To prepare the body for restful situations ( rest + digest)

30
Q

What are the effects of stimulation to the parasympathetic efferent nervous system? (4)

A
  • decreased heart rate
  • decreased gastric motility
  • decreased pupil size
  • decreased salivation
31
Q

What is the sympathetic chain ganglia?

A

21-23 pairs of ganglia on either side of the vertebral column where neuron 2 axons synapse onto neuron 3 input zones in the sympathetic efferent nervous system

Hubs- Neuro (9 decks)

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