exam 4: CN IX, X,XI,XII (need to watch) (37) Flashcards

1
Q

GLOSSOPHARYNGEAL NERVE (IX) is associated with what

A

tongue
pharynx

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2
Q

what foramen is this

A

Jugular foramen

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3
Q

what foramen is this

what 3 nerves run through it

A

Jugular foramen

CN IX, X, XI

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4
Q

what nerve is this

A

GLOSSOPHARYNGEAL NERVE (IX)

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5
Q

what nerves correspond to 1 and 2

A
  1. CN X
  2. CN XI
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6
Q

what does the Jugular foramen externally opens into a fissure

what is the name of this

A

Tympano-occipital fissure

said it was exam question

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7
Q

what important structure is the Tympano-occipital fissure close to

A

Tympanic Bulla

said it was exam question

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8
Q

Infections in the middle ear, which is housed in the tympanic bulla is very close to what fissure

A

Tympano-occipital fissure

said it was exam question

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9
Q

GLOSSOPHARYNGEAL NERVE (IX) Afferent or Efferent

A

Both

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10
Q

GLOSSOPHARYNGEAL NERVE (IX) has GSA from what part of the body

A

Sensory of the root of the tongue, palate, and pharynx.

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11
Q

GLOSSOPHARYNGEAL NERVE (IX) sends special visceral afferent (SVA) stimuli from what part(s) of the body

A
  • Taste from the root of the
    tongue (papilla)
  • Carotid sinus and body
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12
Q

does the GLOSSOPHARYNGEAL NERVE (IX) have efferent fibers

A

yes, GSE and GVE parasympathetic

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13
Q

what ganglion does the GVE signal of the GLOSSOPHARYNGEAL NERVE (IX) synapse at

A

Otic ganglion

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14
Q

GLOSSOPHARYNGEAL NERVE (IX) :

what are the two glands that the postganglionic parasympathetic (GVE) stimulus go to

A

Zygomatic gland & Parotid gland salivary glands

(increase secretion, and production of saliva)

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15
Q

GLOSSOPHARYNGEAL NERVE (IX) :
What muscle/ action is the GSE involved in

A

palatopharyngeal m.

involved in elevating the pharynx and larynx, contributing to the swallowing process

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16
Q

What does the Pharyngeal branch of the GLOSSOPHARYNGEAL NERVE (IX) send GVA signals from

A

Soft palate, and pharynx

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17
Q

What does the Lingual branch of the GLOSSOPHARYNGEAL NERVE (IX) send GVA signals from

A

GVA: Mucosa of the root of the tongue

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18
Q

Internal carotid artery has an expansion (bulb) forms the ________

A

sinus of the carotid

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19
Q

identify what nerve/branch goes to the root of the tongue

A
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20
Q

Internal carotid artery goes directly into the __________. This is why it is so important!

A

THE BRAIN

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21
Q

what are the receptors on the internal carotid artery

A

Carotid sinus (baroreceptors)
Carotid body (chemoreceptors)

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22
Q

what are the branches of the GLOSSOPHARYNGEAL NERVE (IX)

A

Carotid sinus branch
Lingual branch
Pharyngeal branch

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23
Q

Carotid body (chemoreceptors) of the Internal carotid sinus is for detection of what gas

A

CO2

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24
Q

The efferent part of the GLOSSOPHARYNGEAL NERVE (IX) has a pharyngeal branch that goes to what kind of muscle

A

Palatopharyngeal mm. (skeletal)

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25
Q

Medial to the tympanic bulla is

A

A bunch of nerves like the CN Glossopharyngeal- Pharyngeal branch

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26
Q

The overall job of the Pharyngeal branch of the Glossopharyngeal n is to control the

A

Constrictor muscles which control swallowing

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27
Q

pharyngeal plexus which consist of cranial nerves ___ and ____ controls swallowing

A

CN IX & CN X

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28
Q

Identify 1 and 2

A
  1. Tympanic bulla
  2. Pharynx, reflected
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29
Q

What nerves/structure is being pointed to by the yellow arrow

A

Nerves IX, X & XI and Internal carotid artery going through Tympano-occipital fissure

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30
Q

Identify 1-3

A
  1. Tympano-occipital fissure
  2. Internal carotid a.
  3. External carotid a
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31
Q

Identify 1-3

A
  1. CN X
  2. CN XI
  3. Vagosympathetic trunk
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32
Q

identify 1-3

A
  1. Tympanic bulla
  2. CN IX
  3. Cranial cervical ganglion
33
Q

what nerves/arteries/veins run within the Tympanooccipital fissure

A

-Glossopharyngeal n. (CN IX)
- Vagus n. (CN X)
- Accessory n. (CN XI)
- Internal carotid a.
- Internal jugular v

34
Q
A
35
Q

Is the vagus nerve afferent or efferent

A

both

36
Q

Where is the GSA signal from on the vagus nerve

A

GSA: General Somatic Afferent
- External ear canal
- Rostral Laryngeal mucosa

37
Q

Where is the GVA signal from on the vagus nerve

A

from cervical, thoracic and abdominal organs

38
Q

Where is the SVA signal from on the vagus nerve

A

Taste from epiglottis

39
Q

Where does the GSE of the vagus go to as they travel the cranial laryngeal nerve

A

GSE: General Somatic Efferent
-Pharyngeal m.

-Cricothyroid m.

-Laryngeal m., included the Dorsal cricothyroid m.

-Esophagus

40
Q

Where does the GVE of the vagus go to

A

GVE: Parasympathetic–Smooth m. and glands

41
Q

what nerve is sensory for laryngeal mucosa

A

Cranial laryngeal n.

42
Q

what ganglion do the Afferent pathway of vagus nerve travel through

A

Vagal ganglion

43
Q

Vagus n. Efferent

where do the Somatic motor signals go to?

A
  • Pharyngeal m
  • Laryngeal m.
  • Esophagus
44
Q

Vagus n. Efferent

Where do the parasympathetic signals go

A
  • Smooth m. and glands of digestive
    apparatus from esophagus & stomach until left colic flexure
  • Smooth m. and glands of respiratory apparatus from larynx until lungs
45
Q

what nerves are involved with the epiglottis

A
46
Q

Identify 1 and 2

A
  1. Pharyngeal branch of cn IX
  2. Pharyngeal branch of cn X
47
Q

identify

A

pharyngeal plexus
Controls swallowing (cn IX & cn X)

48
Q

identify 1-4

A
  1. Pharyngeal branch of vagus
  2. cranial laryngeal n.
  3. R. recurrent laryngeal n.
  4. L. recurrent laryngeal n.
49
Q

identify 1 and 2

A

1.Cranial laryngeal n.

  1. Caudal laryngeal n.-From recurrent laryngeal n.
50
Q

identify 1 and 2 of the blue arrows

A

1.Sensory of laryngeal mucosa
2. Sensory of infraglottic laryngeal mucosa

51
Q

identify 1 and 2 of the red arrows

A

1.Motor of cricothyroid m
2. Motor of all the other laryngeal mm.–Including dorsal cricoarytenoid m

52
Q

Identify the nerve

what is it sensory to?
what is it motor to?

A

Cranial laryngeal n.
Sensory for laryngeal mucosa
Motor for cricothyroid m

53
Q

CN X: Vagus Nerve goes the Cervical, Thoracic, and Abdominal_________

A

Viscera

54
Q

know this image

A

:)

55
Q

Identify 1 and 2

A
  1. ACCESSORY NERVE (XI)
  2. Spinal roots to mm. in the neck
56
Q

identify what the 2 yellow arrows are pointing to

A

Cranial roots joint with vagus n.
To form the recurrent laryngeal n.

57
Q

identify the nerve

A

CN XI from spinal roots

58
Q

Accessory n. (XI) is motor to what muscles

A

Motor for neck muscles(fibers originated from spinal roots of XI)

  • Trapezius m.
  • Cleidocephalicus m.
  • Sternocephalicus
59
Q

what nerve goes to the:
- Trapezius m.
- Cleidocephalicus m.
- Sternocephalicus

A

Accessory n. (XI)

60
Q

HYPOGLOSSAL NERVE (XII) is motor (GSE) to the ______________ of the tongue

A

to the intrinsic and extrinsic muscles of the tongue

61
Q

what nerve is being pointed to

A

HYPOGLOSSAL NERVE (XII)

62
Q

identify the nerve

A

Hypoglossal nerve

63
Q

identify 1 and 2

A

1.Vagosympathetic trunk
2. Cranial laryngeal n

64
Q
A
65
Q
A
66
Q
A
67
Q
A
68
Q

As soon as you touch the mucosa/epiglottis with a stimulate, there is a __________

IF NOT= dead

A

reflex

69
Q

Why is the cranial laryngeal nerve (GSA) so important

A

it “saves you life” every time you aspirate saliva

70
Q

The recurrent laryngeal nerve brings _____ from the most caudal portion of the esophagus

A

GSA

71
Q

the recurrent laryngeal is a branch of what major nerve

A

vagus

72
Q

what is the only intrinsic muscle innervated by the cranial laryngeal nerve

A

cricothyroid m.

repeated this a lot*

73
Q

where is the origin of the recurrent laryngeal nerve

A

accessory n.

74
Q

what happens if there is damage to the recurrent laryngeal nerve

A

hemiparalysis of the larynx

75
Q

what does the right recurrent laryngeal nerve wrap around? Left?

A

Left is around the aortic arch

Right is around the right subclavian

76
Q

WHAT IS THE MOST IMPORTANT CONCEPT REGARDING THE CRANIAL LARYNGEAL N.

A

sensory for the larynx– coughing reflex!!!

77
Q

MAIN ACTION OF RECURRENT LARYNGEAL NERVE

A

motor for the laryngeal m. including Dorsal cricothyroid m.

IF INJURED= PARALYSIS

78
Q

what nerve is this

A

Vagus n (CN X)