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Responsible for sense of smell
Olfactory Nerve
CN: 1
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Sense of sight
Plays a role in vision
Optic Nerve
cn:2
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• Movement of eyeball
• Constriction of pupil for bright light or near vision
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Sensation in face, scalp, and teeth
Contraction of chewing muscles
Performs a wide variety of functions, including chewing and facial sensation.
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• Sense of taste
• Contraction of facial muscles
• Secretion of saliva
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• Sense of hearing
• Sense of equilibrium
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• Sense of taste
• Secretion of saliva
• Sensory input for cardiac, respiratory, and blood pressure reflexes
• Contraction of pharynx
Glossopharyngeal
- Responsible for controlling saliva, taste, and swallowing
- 9
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• Sensory input in cardiac, respiratory, and blood pressure reflexes
• Sensory and motor input to larynx (speaking)
• Decreased heart rate
• Contraction of alimentary tube (peristalsis)
• Increased digestive secretions
- Vagus
- Plays a role in the motion of the lungs, throat, heart and digestive system
- 10
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• Contraction of neck and shoulder muscles
• Motor input to larynx (speaking)
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• Movement of the tongue
Controls speech, tongue, and swallowing
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