Question | Answer |
I Olfactory | Function: special sensory
Source/Target: olfactory epithelium |
II Optic | Function: special sensory
Source/Target: retina of eye |
III Oculomotor | Function: motor
Source/Target: 4 extrinsic muscles of eye |
IV Trochlear | Function: motor
Source/Target: 1 extrinsic muscle of eye |
V1 Ophthalmic | Function: sensory
Source/Target: skin- upper 1/3 of face |
V2 Maxillary | Function: sensory
Source/Target: skin- middle 1/3 of face, teeth |
V3 Mandibular | Function: sensory
Source/Target: skin- lower 1/3 of face, teeth, tongue
Function: motor
Source/Target: 3 muscles of mastication |
VI Abducens | Function: motor
Source/Target: 1 extrinsic muscle of eye |
VII Facial | Function:motor
Source/Target: muscles of facial expression
Function: special sensory
Source/Target: taste of anterior 2/3 of tongue |
VIII Vestibulocochlear | Function: special sensory
Source/Target: inner ear (cochlea & vestibular apparatus) |
IX Glossopharyngeal | Function: special sensory
Source/Target: taste on posterior 1/3 of tongue
Function: motor
Source/Target: muscles of pharynx |
X Vagus | Function: sensory
Source/Target: skin of throat +external ear canal
Function: special sensory
Source/Target: gag reflex (chemical)
Function: motor
Source/Target: muscles of pharynx & gut |
XI Accessory | Function: motor
Source/Target: muscles of pharynx, trapezius, sternocleidomastoid |
XII Hypoglossal | Function: motor
Source/Target: muscles of the tongue |