Name: Olfactory Nerve
Number: I
Type (sensory/motor): Sensory
Function(s): Conveys information about smell to the brain from the nasal mucosa
Location (For CN I-VI and XI only): by the olfactory bulbs
Name: Optic
Number: II
Type (sensory/motor): Sensory
Function(s): Relays visual information to the contralateral side of the brain
Location (For CN I-VI and XI only): tip ends of the optic chiasm (at least on the model)
Name: Oculomotor
Number: III
Type (sensory/motor): Motor
Function(s): Eye movement and pupil constriction; moves eye in most directions
Location (For CN I-VI and XI only): just below the pituitary
Name: Trochlear
Number: IV
Type (sensory/motor): Motor
Function(s): Eye movement, external rotation, elevation
Location (For CN I-VI and XI only): either side, just above/the side of the pons
Name the nerves I-XII
I. Olfactory
II. Optic
III. Oculomotor
IV. Trochlear
V. Trigeminal
VI. Abbducens
VII. Facial
VIII. Vestibulococholear
IX. Glossopharyngeal
X. Vagus
XI. Spinal Accessory
XII. Hyoglossal
What main things do you need to know about the cranial nerves?
Name
Number
Type (sensory/motor)
Function(s)
Location (For CN I-VI and XI only)
- Name: Trigeminal Nerve
- Number: V
- Type (sensory/motor): Sensory and Motor
- Function(s): Sensation to the face, muscles involves chewing
- Location (For CN I-VI and XI only): just below the Trochlear nerve next to the pons
- Name: Abducens Nerve
- Number: VI
- Type (sensory/motor): Motor
- Function(s): Lateral Eye movement
- Location (For CN I-VI and XI only): medial to the Trigeminal Nerve
- Name: Facial nerve
- Number: VII
- Type (sensory/motor): Sensory and Motor
- Function(s): Control the muscles of the face, provides sensory information to anterior ⅔ of tongue
- Location (For CN I-VI and XI only) - not important here, but lateral to the abducens
- Name: Vestibulocochlear nerve
- Number: VIII
- Type (sensory/motor): Sensory
- Function(s): 2 Main functions: 1) Provide auditory information(hearing); 2) Balance and movement
- Location (For CN I-VI and XI only)
Name: Glossopharyngeal
Number: IX
Type (sensory/motor): Sensory & Motor
Function(s): Taste from the posterior ⅓ of tongue, muscles involved in swallowing, salivation
Location (For CN I-VI and XI only): n/a
Name: Vagus
Number: X
Type (sensory/motor): Sensory & Motor
Function(s): “wandering nerve”; controls muscles of the throat and voice box, regulates functioning and provides sensory information for the viscera; regulates heart rate, function of intestines
Location (For CN I-VI and XI only): n/a
Name: Spinal Accessory
Number: XI
Type (sensory/motor): Motor
Function(s): Innervates muscles that control movement of the head and shoulder
Location (For CN I-VI and XI only): below the midbrain; very last end of the nerves, looks like a little loose fiber
Name: Hypoglossal
Number: XII
Type (sensory/motor): Motor
Function(s): control movements of the tongue
Location (For CN I-VI and XI only): n/a
Superior oblique muscle
trochlear (IV) motor
External rectus muscle
Abducent (VI) motor
All eye muscles except those supplied byb IV and VI
Oculomotor (III) motor
sensory: Face, sinuses, teeth, etc
Trigeminal (V) sensory
motor: muscles of mastication
Trigeminal (V) motor
nose
Olfactory (I)
Muscles of the face
Facial(VII) motor
Muscles of the tongue
Hypoglossal (XII) motor
Submaxilary and sublingual gland
Intermediate motor
Anterior part of tongue and soft palate
Intermediate sensory
