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PNS Cranial Nerves Flashcards

1
Q

Oh
Oh
Oh
To
Touch
and
Feel
Very
Good
Vagina
Anal
Head

A

I. Olfactory n.
II. Optic n.
III. Oculomotor n.
IV. Trochlear n.
V. Trigeminal n.
VI. Abducens n.
VII. Facial n.
VIII. Vestibulocochlear n.
IX. Glossopharyngeal n.
X. Vagus n.
XI. Accessory
XII. Hypoglossal

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2
Q

Cranial Nerves:
1.How many pairs?
2. Body Parts Served:

A
  1. 12 pairs
  2. Serve head and neck
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3
Q

Cranial n. I
Start/ Stop:
Sensory/Motor/Both:
Function:
Testing:
Disorder:

A

OLFACTORY
Start/Stop: Nasal Cavity/ Cortex
Sensory/Motor/Both: Sensory
Function: Smell
Testing: Sniff/ smell test
Disorder: Anosmia (loss of smell)

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4
Q

Cranial n. II
Start/Stop:
Sensory/Motor/Both:
Function:
Testing:
Disorder:
Processing:

A

OPTIC N.
Start/Stop: Retina/ Cortex
Sensory/Motor/Both: Sensory
Function: Vision
Testing: Eye chart test visual fields
Disorder: Blindness/ Anopsia (eye defect)
Processing: Bilateral

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5
Q

Cranial n. III
Start/Stop:
Stop:
Sensory/Motor/Both:
Function:
Testing:
Disorder:
Processing:

A

OCULOMOTOR
Start/ Stop: Midbrain/ Superior Orbital Fissure of eye

Sensory/Motor/Both: Motor

Function: Eye muscles/ Eye movement, pupil constriction

(Muscles it controls: Sup. Rectus, Inf. Rectus, Med. Rectus, Inf. Oblique)

Testing: Pupil size/shape, pupillary reflex

Disorder: no eye movement, lateral strabismus, ptosis of eyelid

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6
Q

Cranial n. IV

Start/Stop:
Sensory/Motor/Both:
Function:
Testing:
Disorder:

A

TROCHLEAR
Start/Stop: Back of Midbrain/ Superior Orbital Fissure
Sensory/Motor/Both: Motor
Function: Supplies Sup. Oblique muscle
Testing: Pupil size/shape, pupillary reflex
Disorder: Double vision, can’t move eye down to lateral side

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7
Q

Eye muscles controlled by Oculomotor n. (4)
(S.I.M.I.)

A

Superior Rectus
Inferior Rectus
Medial Rectus
Inferior Oblique

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8
Q

Need to know Eye muscles (6) and which nerves control them (S.I.M.I.L.S.)

A
  1. Superior Rectus m. - Oculomotor n.
  2. Inferior Rectus m. - Oculomotor n.
  3. Medial Rectus m. - Oculomotor n.
  4. Inferior Rectus m. - Oculomotor n.
  5. Lateral Rectus m. - Abducens n.
  6. Superior Oblique m. - Trochlear n.
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9
Q

3 divisions of Cranial n. V.

A

TRIGEMINAL (3 div)
1. Ophthalmic
2.Maxillary
3.Mandibular

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10
Q

Cranial n. V. (& 3 divisions)

A

TRIGEMINAL N. (Opthalmic, Maxillary, Mandibular)

Start (Opthalmic): Superior Orbital Fissure
Start (Maxillary): Foramen Ovale
Start (Mandibular): Foramen Ovale

Stop (All 3): Pons

Sensory/Motor/Both (Opth): Sensory
Sensory/Motor/Both (Max): Sensory
Sensory/Motor/Both (Mandib): Both

Function (Opth): Nasal Cavity on up
Function (Max): Lip to Opthalmic
Function (Mandib): Sensory - chin to maxillary and Motor - (chewing muscles)

Testing (Opth): corneal reflex
Testing (Max): pain, touch, temp, sensation
Testing (Mandib): move jaw side to side/clench teeth

Disorder (All 3): Tic Douloureux

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11
Q

Cranial n. VI

Start/Stop:
Sensory/Motor/Both:
Function:
Testing:
Disorder:

A

ABDUCENS

Start/Stop: Pons/ Lateral Rectus Muscle
Sensory/Motor/Both: Motor
Function: lateral Rectus muscle & proprioception

Testing: Pupil size/shape, pupillary reflex
Disorder: Internal Strabismus

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12
Q

Cranial n. VII

Start/ Stop:
Sensory/Motor/Both:
Function:
Testing:
Disorder:

A

FACIAL

Start/Stop: Pons/ Face
Sensory/Motor/Both: BOTH
Function: Motor to face/ Sensory from taste buds/ parasymp to glands
Testing: Taste Buds, face symmetry
Disorder: Bells Palsey

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13
Q

Cranial n. VIII

Start/ Stop:
Sensory/Motor/Both:
Function:
Testing:
Disorder:

A

VESTIBULOCOCHLEAR

Start/ Stop: Vestibulocochlear n. & cochlear n./ Pons
Sensory/Motor/Both: Sensory
Function: Hearing & Equilibrium Centers
Testing: Hearing Test
Disorder: deafness, dizziness, loss of balance

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14
Q

Cranial n. IX

Start/ Stop:
Sensory/Motor/Both:
Function:
Testing:
Disorder:

A

GLOSSOPHARYNGEAL

Start/ Stop: Medulla Obl./ Throat
Sensory/Motor/Both: Both
Function: tongue, pharynx, proprioception
Testing: Gag, speaking, coughing
Disorder: Swallowing

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15
Q

Cranial n. X

Start/ Stop:
Sensory/Motor/Both:
Function:
Testing:
Disorder:

A

VAGUS

Start/ Stop: Medulla Obl/ Thorax & Abdomen
Sensory/Motor/Both: Both
Function: swallowing, heart, breathing, sensory from abdomen
Testing: Gag, speaking, coughing
Disorder: Hoarseness, difficulty swallowing, death

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16
Q

Cranial n. XI

Start/ Stop:
Sensory/Motor/Both:
Function:
Testing:
Disorder:

A

ACCESSORY

Start/ Stop: Union of Cranial Root/ Spinal Root
Sensory/Motor/Both: Motor
Function: Pharynx Muscles (Cranial Root) Trapezius & Sternocleidomastoid (Spinal Root)

Testing: Shrugging against resistance/ head turning
Disorder: head turning to injured side, difficulty shrugging on that side

17
Q

Cranial n. XII

Start/ Stop:
Sensory/Motor/Both:
Function:
Testing:
Disorder:

A

HYPOGLOSSAL

Start/ Stop: Medulla/ tongue
Sensory/Motor/Both: Motor
Function: Tongue Movement
Testing: Stick out tongue
Disorder: difficulty speaking & swallowing/tongue deviates to injured side

AP2 (3 decks)

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