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Musculoskeletal > Final Exam Review- E2 CN's > Flashcards

Final Exam Review- E2 CN's Flashcards

1
Q

Which geometric “space” transmits the circumflex scapular artery?

A

The Triangular Space

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2
Q

Which geometric space transmits the circumflex humeral artery and the Axillary Nerve?

A

The Quadrangular Space

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3
Q

Which artery is located underneath the Pterion?

A

Middle Meningeal Artery. (very susceptible to injury)

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4
Q

What is the brain stem nucleus not involved in cranial function?

A

Ventral Medial Nucleus (in the thalamus)

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5
Q

NOT ON TEST: but fun knowledge, which cranial nerve wraps another CN nucleus?

A

VII wraps around VI’s nucleus

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6
Q

Which muscle is innvervated by the abducens (VI) nerve?

A

Lateral Rectus. Boom.

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7
Q

Where do the optic nerve fibers terminate after they decussate?

A

Occipital Portion of the Brain

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8
Q

What is the FACIAL EXPRESSION muscle Platysma innervated by?

A

VII

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9
Q

Which section of the brain controls balance and posture?

A

The Cerebellum

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10
Q

Which cranial nerve nuclei would be damaged if there was trauma to the Medulla? What are the other two “houses” for CN’s?

A

The last 4 (IX,X,XI,XII) The midbrain houses 4, the Pons houses 4, and the Medulla Houses the last 4. A GENERAL rule of thumb

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11
Q

What is the Masseter innervated by?

A

V, muscle of mastication (VII Facial Expression)

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12
Q

Which two CNs provide MOTOR innervation to the tongue?

A

XII, X

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13
Q

Which CN gives TASTE to the POSTERIOR 1/3 of the tongue?

A

IX Glossopharyngeal

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14
Q

What CN gives TASTE to the anterior 2/3 of tongue?

A

VII Facial (mandibular?)

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15
Q

Which CN controls the Efferent Gag reflex? What about the Afferent Gag reflex?

A

Efferrent:X Vagus (Throwing Up) AFFERENT: IX GlossoPharyngeal

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16
Q

Which nerve gives sensory information to the Hypothenar Region of the hand?

A

Ulnar Nerve

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17
Q

Which skull bone houses the vestibulocochlear nerve?

A

Temporal Bone

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18
Q

What “muscles” control LENS accommodation–>(FOCUS) in the eye?

A

Cilliary Body

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19
Q

What cranial nerve & ganglion control the Pupil?

A

III (Oculomotor) & Superior Cervical Ganglion. Remember LUNG cancer can lead to vision problems!

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20
Q

What happens to the pupil when you blow CN III? What happens when you blow the Superior Cervical Ganglion/Cilliary Body?

A

CN III Blown= Pupils become DILATED.. Superior Cerv. Gang=Puils cannot dilate and stay SMALL

21
Q

What refers to the cross of the optic fibers?

A

The optic chiasm

22
Q

Which directions will the eye face if you BLOW CN IV?

A

Up and In

23
Q

What would be unaffected with a VIII lesion?

A

Somatic Motor Fibers. VIII is SENSORY ONLY

24
Q

What is not affected in a VII Lesion?

A

Your ability to open the eye, so it will STAY OPEN resulting in a tarsorraphy surgery.

25
Q

A lesion of CN III would do all the following except:

A

Constrict the Pupil (if III is blown, the pupil would be permanently dilated)

26
Q

What lesion would cause a tongue deviation to the Right?

A

Damage to the R XII.

27
Q

What CN damage would cause a Medial turn in one eyeball? TRIVIA: what is the medical name for this?

A

VI abducens. LR is Out…EE-so-Tropia

28
Q

What is the most common palsy of a CN?

A

Bell’s Palsy of CN VII

29
Q

A lateral tarsorrhaphy is performed because of issues with what CN?

A

VII, because you cannot close the eye

30
Q

What MAJOR problem would lead to difficulty swallowing and a Left tongue atrophy?

A

Damage to the L XII due to a malignancy (cancer) lesion on L XII

31
Q

What type of palsy would lead to End (LOWER) Organ dysfunction of X,XI,XII?

A

A Bulbar Palsy (remember?! lower lesion vs pseudo-bulbar being upper lesion)

32
Q

What would the result in food dribbling from the mouth?

A

A Bell’s Palsy (CN VII)

33
Q

Which CN is damaged if the Pt’s eye points INFERIOR and LATERAL?

A

III

34
Q

Which CN damage would cause numbness to the Nasopharnyx?

A

CN IX

35
Q

What nerve severance would lead directly to DEATH?

A

X Vagus

36
Q

What CN gives SENSATION to the anterior 2/3 of the tongue? (Not talking about TASTE here)

A

V

37
Q

AFFERENT nerve branches that innervate the mucosa of the PHARYNX are a part of which CN?

A

IX Glossopharyngeal

38
Q

An injury to the submandibular triangle causes tongue deviation to the left, which CN has been damaged?

A

Left CN XII

39
Q

A stroke (infarct) causes difficulty swallowing. What CN is Unaffected by this?

A

XI (Spinal Accessory doesn’t have anything to do with swallowing)

40
Q

What CN has a lesion if a Pt has dry nasal sinuses, no tears, and no taste in anterior 2/3 of tongue?

A

VII

41
Q

What CN damage would leave to difficultly swallowing and coughing?

A

X (C/O coughing)

42
Q

What cranial nerve damage would cause sensitivity to loud sounds (hyperacusis)?

A

VII

43
Q

When examining an ear infection, the Pt coughs when you put a q tip in there. Which CN caused this?

A

X

44
Q

What CN damage would lead to Ptosis of the eyelid, dilation of the pupil, and the eye being pointed laterally and down?

A

III

45
Q

When a pupillary light reflex test is done which nerves are being checked?

A

II Optic (for accomodation sending message to both eyes) III because it constricts the pupil

46
Q

A middle ear infection leads to complications in temporal bone and then he Pt can’t close Right eye and can’t close mouth. Which CN was infected?

A

VII

47
Q

After tonsils removed a Pt loses gag reflex and the sensory on posterior 1/3 of tongue. Which CN was affected?

A

IX Glossophayrnegal

48
Q

Which two nerves are most susceptible to damage in a Mastectomy?

A

Long Thoracic Nerve & Thoracodorsal

49
Q

The recurrent laryngal nerve is a branch off of which CN?

A

X

Musculoskeletal (13 decks)

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