Cranial Nerves Flashcards
CN I Olfactory Nerve
Olfaction- smell
Sensory
only cranial nerve to enter the cerebrum directly; this is technically a central nervous
system tract, not a nerve
CN II Optic nerve
Vision
Sensory
is really an outgrowth of the cerebrum, rather than a nerve
CNIII Oculomotor nerve
Movement of upper eyelid and eyeball; alters shape of lens for near vision and constricts pupil
Motor
Nuclei are located in the midbrain of the brainstem
CNIV Trochlear nerve
movement of the eyeball
Nuclei are located in the midbrain of the brainstem
CNV Trigeminal nerve
Touch, pain, and temperature sensations and muscle sense ( proprioception); chewing
Mixed motor and sensory
Nuclei are located in the pons of the brainstem
CN VI Abducens nerve
movement of eyeball
Motor
Nuclei are located in the pons of the brainstem
CN VII Facial Nerve
Taste; muscle sense (proprioception); touch, pain, and temperature sensations; facial expressions; secretion of
tears and saliva
Mixed motor and sensory
Nuclei are located in the pons of the brainstem
CN VIII Vestibulocochlear
Equilibrium and hearing
Sensory
Nuclei located in the pons of the brainstem
Nuclei are located in the medulla of the brainstem
CN IX Glossopharyngeal
Taste and somatic sensations from tongue; proprioception
in swallowing muscles; swallowing, speech, secretion of saliva
Mixed motor and sensory
Nuclei are located in the medulla of the brainstem
CN X Vagus Nerve
Taste and sensation from throat; sensations from visceral
organs; swallowing, coughing, and voice; smooth muscle
control in digestive tract; slowing of the heart rate;
secretion of digestive fluids
Mixed motor and sensory
Nuclei are located in the medulla of the brainstem
CN XI Spinal accessory
Movements of head and shoulders
Motor
Nuclei are located in the medulla of the brainstem
Cn XII Hyoglossal nerve
Movement of tongue during speech and swallowing
Motor
Nuclei are located in the medulla of the brainstem
