welve cranial nerves
Number
Name
Functional components
Function
1
Olfactory
Special sensory
Sensation of smell.
2
Optic
Special sensory
Sensation of vision.
3
Oculomotor
Somatic motor
Controls four of the six eye muscles and the eyelid muscle.
Visceral motor
Parasympathetic control of the lens and pupil.
4
Trochlear
Somatic motor
Controls the superior oblique muscle of the eye.
5
Trigeminal
Somatic sensory
Sensation from the skin of the face.
Branchial motor
Controls the muscles of the jaw.
6
Abducens
Somatic motor
Controls the lateral rectus muscle of the eye.
7
Facial
Somatic sensory
Taste sensation from the front of the tongue.
Branchial motor
Controls the muscles of the face.
8
Vestibulocochlear
Special sensory
Sensations of hearing and balance.
9
Glossopharyngeal
Branchial motor
Controls one of the muscles of the pharynx.
Visceral motor
Parasympathetic control of the parotid salivary gland.
Special sensory
Taste sensation from the back part of the tongue.
Visceral sensory
Detection of blood pressure changes.
10
Vagus
Visceral motor
Parasympathetic control of internal organs of the thorax and abdomen.
Visceral sensory
Sensation from the internal organs.
Branchial motor
Controls the muscles of the pharynx and larynx.
11
Accessory (spinal part)
Somatic motor
Controls two large neck muscles.
12
Hypoglossal
Somatic motor
Controls the muscles of the tongue.
