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Anatomy II module II > Autonomic nervous system > Flashcards

Autonomic nervous system Flashcards

1
Q

Where are the somas of the first and second neurons in the symp and parasymp chain?

A

The first is in the CNS the second is in the PNS

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2
Q

What do GVE do?

A

control involuntary functions like vascular tone and glandular secretions

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3
Q

What to GVA do?

A

carry pain info to CNS and represent afferent limb of autonomic reflex

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4
Q

Where are the soma of preganglionic sympathetic neurons?

A

lateral horn of spinal cord T1-L2/3

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5
Q

Where do preganglionic sympathetic fibers leave the spinal cord?

A

via anterior horn of the spinal cord

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6
Q

Pre.g sympathetic fibers do one of three things after leaving the anterior horn of the spinal cord What three things are they?

A

Synapse on symp chain at the SAME LEVEL. Ascend or descend in the symp chain/trunk and synapse at ANOTHER LEVEL. Pass thru the symp chain WITHOUT SYNAPSING and travel to paravertebral ganglia

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7
Q

What makes the sympathetic chain ganglia?

A

The soma of POSTganglionic sympathetic neurons

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8
Q

Name the 3 cervical ganglia

A

Superior cervical ganglion, middle cervical ganglion, inferior cervical ganglion

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9
Q

Where is the Superior cervical ganglion?

A

at C1-C2 vertebral level

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10
Q

Where is the Middle Cervical Ganglion?

A

at C6 vertebral level/ cricoid cartilage

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11
Q

where is the inferior cervical ganglion?

A

at C7 vertebral level.

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12
Q

In about 80% of individuals the C7 and T1 ganglia are…

A

fused to form the stellate ganglion

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13
Q

Besides the cervical ganglia, what other ganglia are there in the sympathetic chain?

A

10-12 Thoracic, 4 Lumbar, 4-5 sacral ganglia

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14
Q

How many spinal nerves do sympathetic fibers course through? What about named nerves along the body wall?

A

They course through ALL spinal nerves and MOST named nerves that run in the extremeties and the body wall

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15
Q

Do Parasympathetic fibers travel to limbs or body wall?

A

No they do not

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16
Q

Do symp or parasymp fibers course to blood vessels, sweat glands, arrector pili muscles and virtually all parts of the body except for cartilge and nails?

A

Postganglionic sympathetic fibers do this

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17
Q

Where does dental pulp receive its postganglionic sympathetic fibers from?What type of fibers are they? what do they control?

A

From the superior cervical ganglion. They are GVE fibers and control vascular tone

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18
Q

The GSA fibers in pulp transmit pain info to what cranial nerve?

A

CN-V

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19
Q

where do superior cervical ganglion receive preganglionic sympathetic fibers from?Do they ascend or descend to get there?

A

T1-T3 they ascend through the chain to get to their synapse at the superior cervical ganglion

20
Q

The Superior cervical ganglion postganglionic fibers contribute to

A

Internal carotid plexus, external carotid plexus, carotid body and sinus, C1-C4 spinal nerves, cardiac plexus REVIEW THIS SLIDE IT SUCKS (slide 14)

21
Q

Sometimes the Middle cervical ganglion is…

A

missing, it is the smallest

22
Q

PREganglionic symp fibers of the MIDDLE cervical ganglion come from

A

T1-T3 and T4 and T5

23
Q

POSTganglionic symp fibers from the MIDDLE cervical ganglion contribute to…

A

C5 and 6 spinal nerves, and the cardiac plexus via the cardiopulmonary splanchnic nerve

24
Q

The Inferior cervical ganglion is sometimes….

A

FUSED with 1st thoracic as the stellate ganglion

25
Q

The PREganglionic symp fibers of the INFERIOR cervical ganglion come from

A

T1-T3 and T4 and T5.

26
Q

the POSTganglionic symp fibers from the INFERIOR cervical ganglion contribute to

A

C7 and C8 spinal nerves and cardiac plexus via cardiopulmonary splanchnic nerve

27
Q

Preganglionic sympathetic fibers from T1-T5(upper thoracic ganglia) in from the lateral horn synapse where in addition to the superior middle and inferior cervical ganglia?

A

At the THORACIC paravertebral ganglia at the SAME level T1-T5

28
Q

POSTganglionic sympathetic fibers from the upper thoracic ganglia contribute to what?

A

Cardiac and pulmonary plexuses, via the cardiopulmonary splanchnic nerves and spinal nerves T1-T5

29
Q

With respect to the MID-LOWER thoracic and LUMBAR ganglia and PREganglionic splanchnic nerves, where do the preganglionic sympathetic fibers synapse?

A

In THORACIC paravertebral ganglia at the same level for the MOST part.

30
Q

If PREganglionic symp fibers from the Mid thoracic/lumbar/preganglionic splanchnic nerves pass thru the chain WITHOUT synapsing they form ABDOMINOPELVIC splanchnic nerves, which include what?

A

GREATER. LESSER, LEAST and LUMBAR splanchnic nerves

31
Q

Where is the Greater Splanchnic nerve?

A

T5-T9

32
Q

Where is the lesser splanchnic nerve?

A

T10-T11

33
Q

Where is the Least splanchnic nerve?

A

T12 (its the only one with one spinal level)

34
Q

Where is the Lumbar splanchnic nerve?

A

L1-L2/3

35
Q

Where do Abdominopelvic splanchnic nerves travel to?

A

prevertebral ganglia

36
Q

List the prevertebral ganglia

A

Celiac, aorticorenal, superior mesenteric, and inferior mesenteric ganglia

37
Q

POSTganglionic symp fibers of the abdominoppelvic splanchnic nerves leave their ganglia and are distributed to the

A

organs

38
Q

organ of celiac ganglia?

A

Foregut

39
Q

Organ of Superior mesenteric ganglia?

A

midgut

40
Q

organ of inferior mesenteric ganglia?

A

hindgut

41
Q

organ of aorticorena ganglia?

A

Kidney

42
Q

How does one get horner’s syndrome?

A

interruption of the cervical sympathetic chain

43
Q

what are the symptoms of Horner’s syndrome?

A

Absence of sympathetic functions on IPSILATERAL side of the head, like: pupil constriction, ptosis, redness of skin due to vasodilation, anhydrosis or absence of sweating

44
Q

Which brainstem nuclei are PREganglionic parasympathetic fibers located in?

A

Those associated wtih CN III, VII, IX, X. they are also found in S2 S3 and S4

45
Q

Where are the POSTganglionic cell bodies of parasympathetic fibers located?

A

In the ganglia close to the target organs

Anatomy II module II (6 decks)

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