Pares craneales

I V

I II III X

I II

Ooh Ooh Ooh To Touch And Feel Very Green Vegs A(h) H

S = sensory Olfactory M = motor Optic B = both Oculomotor Trochlear Trigeminal Abducens Facial VestibulocochlearGlossopharyngeal Vagus Accessory (spinal) Hypoglossal

(S)ome (S)ay (M)arry (M)oney (B)ut (M)y (B)rother (S)ays (B)ig (B)rains (M)atter (M)ore

CN3
Superior Rectus Inferior Oblique

CN3 CN6CN3

Medial Rectus

Lateral Rectus

Anosmia -loss of smell -often can still smell “painful” stimuli like ammonia Blindness in eye on affected side (mimicked by closing an eye)

left CN IIlesion

Inferior Rectus

Superior Oblique

CN4

CN3

I. Olfactory (S)
-smell

II. Optic (S)
- sight
right CN II lesion

-sensorineural deafness -balance problems -may be diminished byadaptation if onset is slow -difficulty swallowing -lack of taste in post. 1/3 of tongue -uvula deviates away from lesion

III. Oculomotor (M) VIII. Vestibulocochlear (S)
-balance and hearing a. 4 of 6eye muscles -inferior oblique -superior rectus -medial rectus -inferior rectus b. constriction of iris (PS) c. upper eyelid

-fixed dilated pupil -paralysis of eye -outward deviation of eye-drooping eyelid

IX. Glossopharyngeal (B)
-(S) taste of post. 1/3 of tongue -(M) pharynx -(M) salivation (PS)

right CN III lesion

IV. Trochlear (M)
-superior oblique

X. Vagus (B)
-if a majorlesion...death -minor lesions - nasal speech - lack of taste in throat - parasympathetic problems - may impair swallowing -(S) taste deep in throat -(M)PS of heart, lungs, kidneys, viscera -(M) pharyx,larynx (swallowing)

-weak down and out vision -head tilt -doublevision - numbness of face (dyasthesia) -paralysis and deviation of the jaw to the side of the lesion

V. Trigeminal (B)
(S)sensation of face (M) muscles of mastication

VI. Abducens (M)
-weak neck and back muscles -may impair swallowing
right CN XI lesion (note the lack of tone on the right and the shoulder droops...