Cranial Nerve Function and Testing Quiz

Which cranial nerve is tested by asking the client to identify specific smells?

• Olfactory (I)

• Optic (II)

• Trigeminal (V)

• Facial (VII)

How is the optic nerve (II) function tested?

• Assessing the 6 directions of gaze

• Whispering a word 2 to 3 cm away from one ear

• Testing visual acuity using a Snellen chart

• Checking pupillary reaction to light

Which nerve is responsible for motor control to the muscles of the jaw?

• Vagus (X)

• Trigeminal (V)

• Facial (VII)

• Hypoglossal (XII)

What is the function of the vestibulocochlear nerve (VIII)?

• Sensory to nose for smell

• Motor to eye

• Sensory to ear for hearing and balance

• Motor to muscles of neck

Which test is used to check the function of the accessory nerve (XI)?

• Assessing the 6 directions of gaze

• Observing the ability to turn head side to side and shrug shoulders against resistance

• Asking the client to stick out their tongue

• Checking the perception of sweet and salty tastes on the front of the tongue