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unit 9- neurology > 9-3 Autonomic Nervous System > Flashcards

9-3 Autonomic Nervous System Flashcards

1
Q

Which nervous system:
-controls skeletal muscle
-conscious, voluntary control
motor pathway: one neuron from CNS to effector

A

somatic nervous system

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2
Q

The somatic nervous system release which neurotransmitter?

A

acetylcholine (Ach)

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3
Q

The axon of a single somatic motor neuron extends from ___ all the way to the?

A
  • CNS

- Skeletal muscle fibers

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4
Q

Somatic sensory pathways:

how many neurons in each pathway?

A

3

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5
Q

Somatic sensory pathways:

Cell body #1

A

dorsal root ganglion

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6
Q

Somatic sensory pathways:

Cell body #2

A

spinal cord or brain stem

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7
Q

Somatic sensory pathways:

Cell body #3

A

thalamus

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8
Q

What is the primary somatosensory area of the cerebral cortex?

A

postcentral gyrus

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9
Q

What is the anterior spinothalamic tract used for?

A
  • light touch sensation

- deep pressure sensation

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10
Q

The lateral spinothalamic tract used for?

A
  • pain sensation

- temperature (hot vs cold)

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11
Q

Somatic sensory pathways:

signals come from?

A
  • upper motor neurons
  • basal ganglia
  • cerebellum
  • sensory neurons or interneurons via reflexes
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12
Q

Where does the upper motor neuron originate from?

A

the primary motor cortex (precentral gyrus)

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13
Q

Lower motor neurons exits ______ to the muscle for movement

A

spinal ventral root

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14
Q

Which nervous system:

  • regulated by the hypothalamus and brainstem
  • controls viscera
  • unconscious, involuntary
A

autonomic nervous system

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15
Q

Autonomic nervous system:

motor pathway, series of ____ neurons from the CNS to the?

A
  • 2

- effector

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16
Q

What are the two divisions of the autonomic nervous system?

A
  • sympathetic

- parasympathetic

17
Q

What neurotransmitters are released by the autonomic nervous system?

A
  • acetylcholine

- norepinephrine

18
Q

Which division of the ANS is this:

  • Heart rate= stimulates
  • digestive organs=inhibit
  • fight or flight
A

sympathetic

19
Q

Which division of the ANS is this:

  • Heart rate= inhibits
  • digestive organs=stimulate
  • rest and digest
A

parasympathetic

20
Q

The autonomic motor pathway includes how many motor neurons?

-specifically which ones?

A
  • 2
  • pre ganglionic
  • post ganglionic
21
Q

ANS:

  • pre ganglionic neuron from _____ to neuron in autonomic ganglion
  • post ganglionic neuron from cell body in ganglion to?
A
  • CNS

- effector

22
Q

Sympathetic pre ganglionic neurons have cell bodies located in lateral gray mater of which spinal cord segments?

A

-T1-T12 +L1-L12

23
Q

The sympathetic pre ganglionic neurons release what neurotransmitters?

A

epinephrine and norepinephrine

24
Q

Where are the sympathetic post-ganglionic neuron cell bodies located?

A

-located in the “S” trunk ganglia

25
Q

Cell bodies located in “prevertebral ganglia” follow along which arteries?
how many and which location

A

-3 large abdominal arteries

26
Q

What are the names of the the prevertebral ganglia that follow 3 large arteries?

A
  • celiac
  • superior mesenteric ganglia
  • inferior mesenteric ganglia
27
Q

What do the celiac, superior mesenteric ganglia, and inferior mesenteric ganglia supply?

A

abdominal viscera

  • stomach
  • intestine
  • kidneys
  • liver
  • spleen
28
Q

Vagus nerves (CN X) carry _____ of all parasympathetic nerve impulses

A

80%

29
Q

Parasympathetic nerves cause what type of effects?

A

-precise, localized

30
Q

Unlike sympathetic nerves, parasympathetic nerves do not reach some viscera, what are examples of these?

A
  • sweat glands
  • arrector pili muscles
  • kidneys
  • spleen
  • adrenal medullae
  • wall of most blood vessels
31
Q

Which division of the ANS is this:

  • increase HR, contraction, BP
  • dilate pupils, airways
  • dilate vessels to skeletal muscles, heart, liver, and adipose tissue
  • constrict blood vessels to nonessential organs
  • mobilize glucose and fats
A

sympathetic

32
Q

Which division of the ANS is this:

  • salivation
  • lacrimation
  • urination
  • digestion
  • defecation
  • decrease HR, airway diameter, pupil diameter
A

parasympathetic

unit 9- neurology (4 decks)

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