Cranial Nerves & Cranial Nerve
Screening Final Exam Study Guide Test.
CN I (name, function, sensory/motor/both, connection to brain) - CORRECT ANSWER Olfactory nerve
Smell
Sensory only
Inferior frontal lobe
CN II (name, function, sensory/motor/both, connection to brain) - CORRECT ANSWER Optic nerve
Vision, afferent for pupillary reflex
Sensory only
Diencephalon
CN III (name, function, sensory/motor/both, connection to brain) - CORRECT ANSWER Oculomotor nerve
Moves eyes up, down, and medially; raises upper eyelid; constricts pupil; adjusts lens shape; efferent for
pupillary reflex
Motor only
Midbrain
CN IV (name, function, sensory/motor/both, connection to brain) - CORRECT ANSWER Trochlear nerve
Moves eyes medially + down
Motor only
Midbrain
CN V (name, function, sensory/motor/both, connection to brain) - CORRECT ANSWER Trigeminal nerve
Facial sensation, chewing, sensation from TMJ
Both sensory and motor
Pons
, CN VI (name, function, sensory/motor/both, connection to brain) - CORRECT ANSWER Abducens nerve
Abducts eye
Motor only
Between pons and medulla
CN VII (name, function, sensory/motor/both, connection to brain) - CORRECT ANSWER Facial nerve
Facial expression, closes eyes, produces tears, salivation, taste
Both sensory and motor
Between pons and medulla
CN VIII (name, function, sensory/motor/both, connection to brain) - CORRECT ANSWER
Vestibulocochlear nerve
Sensation of head position relative to gravity and head movement, hearing
Sensory only
Between pons and medulla
CN IX (name, function, sensory/motor/both, connection to brain) - CORRECT ANSWER Glossopharyngeal
nerve
Salivation, taste, afferent for gag and swallowing reflexes, constricts pharynx
Both sensory and motor
Medulla
CN X (name, function, sensory/motor/both, connection to brain) - CORRECT ANSWER Vagus nerve
Regulates viscera, swallowing, speech, and taste, sensation over pharynx and larynx
Both sensory and motor
Medulla
CN XI (name, function, sensory/motor/both, connection to brain) - CORRECT ANSWER Accessory nerve
Screening Final Exam Study Guide Test.
CN I (name, function, sensory/motor/both, connection to brain) - CORRECT ANSWER Olfactory nerve
Smell
Sensory only
Inferior frontal lobe
CN II (name, function, sensory/motor/both, connection to brain) - CORRECT ANSWER Optic nerve
Vision, afferent for pupillary reflex
Sensory only
Diencephalon
CN III (name, function, sensory/motor/both, connection to brain) - CORRECT ANSWER Oculomotor nerve
Moves eyes up, down, and medially; raises upper eyelid; constricts pupil; adjusts lens shape; efferent for
pupillary reflex
Motor only
Midbrain
CN IV (name, function, sensory/motor/both, connection to brain) - CORRECT ANSWER Trochlear nerve
Moves eyes medially + down
Motor only
Midbrain
CN V (name, function, sensory/motor/both, connection to brain) - CORRECT ANSWER Trigeminal nerve
Facial sensation, chewing, sensation from TMJ
Both sensory and motor
Pons
, CN VI (name, function, sensory/motor/both, connection to brain) - CORRECT ANSWER Abducens nerve
Abducts eye
Motor only
Between pons and medulla
CN VII (name, function, sensory/motor/both, connection to brain) - CORRECT ANSWER Facial nerve
Facial expression, closes eyes, produces tears, salivation, taste
Both sensory and motor
Between pons and medulla
CN VIII (name, function, sensory/motor/both, connection to brain) - CORRECT ANSWER
Vestibulocochlear nerve
Sensation of head position relative to gravity and head movement, hearing
Sensory only
Between pons and medulla
CN IX (name, function, sensory/motor/both, connection to brain) - CORRECT ANSWER Glossopharyngeal
nerve
Salivation, taste, afferent for gag and swallowing reflexes, constricts pharynx
Both sensory and motor
Medulla
CN X (name, function, sensory/motor/both, connection to brain) - CORRECT ANSWER Vagus nerve
Regulates viscera, swallowing, speech, and taste, sensation over pharynx and larynx
Both sensory and motor
Medulla
CN XI (name, function, sensory/motor/both, connection to brain) - CORRECT ANSWER Accessory nerve
