ANAT 100 - CN nerves; information, function and location

CN I - Olfactory Nerve

Information: Sensory

Function:

• Sensory: smell

• Motor: None

CN II - Optic Nerve

Information: Sensory

Function:

• Sensory: Vision

• Motor: None

CN III - Oculomotor Nerve

Information: Motor

Function:

• Sensory: None

• Motor: Movement of the eye

  • 1 of 3 CN that sends motor input to the muscles that move the eye

CN IV - Trochlear Nerve

Information: Motor

Function:

• Sensory: None

• Motor: Movement of the eye

  • 2nd of 3 CN that sends motor input to the muscles that move the eye

CN V - Trigeminal Nerve

Information: Sensory & Motor

Functions:

• Sensory: Forehead, eye, upper/lower jaw

• Motor: Muscles of mastication

CN VI - Abducens Nerve

Information: Motor

Function:

• Sensory: None

• Motor: Movement of the eye

  • 3rd CN that sends motor input to the muscles that move the eye

CN VII - Facial Nerve

Information: Sensory & Motor

Function:

• Sensory: Taste for anterior 2/3 of tongue

• Motor: Muscles of facial expressions, parasympathetic innervation of tear and salivary glands

CN VIII - Vestibulocochlear Nerve

Information: Sensory

Function:

• Sensory: Equilibrium and hearing

• Motor: None

CN IX - Glossopharyngeal Nerve

Information: Sensory & Motor

Function:

• Sensory: Sensory innervation of the pharynx, taste from posterior 1/3 tongue

• Motor: Pharynx muscles, parasympathetic innervation of salivary glands

CN X - Vagus Nerve

Information: Sensory & Motor

Function:

• Sensory: Sensory innervation of the larynx

• Motor: Pharynx and larynx muscles, parasympathetic innervation of the thoracic and abdominal organs

CN XI - Accessory Nerve

Information: Motor

Function:

• Sensory: None

• Motor: Trapezius and sternocleidomastoid muscles

CN XII - Hypoglossal Nerve

Information: Motor

Function:

• Sensory: None

• Motor: Muscles of the tongue