Anat Lab 2 Week 3: PNS & Reflexes
CN I Name - correct answer Olfactory Nerve
CN I, Olfactory Nerve (F) - correct answer smell
CN I, Olfactory Nerve (L) - correct answer Originate in superior portion of nasal cavity and
terminates in olfactory bulbs.
CN I, Olfactory Nerve (P) - correct answer Loss of Smell
CN II Name - correct answer Optic Nerve
CN II, Optic Nerve (F) - correct answer Sight
CN II, Optic Nerve (L) - correct answer Retina, through optic foramina of sphenoid bone, optic
chiasm to form optic tracts, thalamus, then to visual cortex
CN II, Optic Nerve (P) - correct answer Contralateral loss of vision
CN III Name - correct answer oculomotor nerve
CN III, Oculomotor Nerve (F) - correct answer Ciliary muscles, adapt the lens in your eye for
focus
Pupillary sphincter of iris
CN III, Oculomotor Nerve (L) - correct answer Mid brain origin, the motor muscles
CN III, Oculomotor Nerve (P) - correct answer Focal issues, inability to move eye to area, light
entry
CN IV Name - correct answer Trochlear Nerve
CN IV, Trochlear Nerve (F) - correct answer superior oblique muscle: medically rotate the eye
(intorsion)
CN IV, Trochlear Nerve (L) - correct answer Nucleus near mid brain, near to oculomotor nerves
CN IV, Trochlear Nerve (P) - correct answer inability to control cross eyed movement, loss of
motor
CN V Name - correct answer Trigeminal Nerve
CN V, Trigeminal Nerve B1 - correct answer Ophthalmic
CN V, Trigeminal Nerve B1 (F) - correct answer Sensations from forehead, lacrimal glands,
eyelids, ciliary bodies, nose sides
CN V, Trigeminal Nerve B2 - correct answer Maxillary
, CN V, Trigeminal Nerve B2 (F) - correct answer Sensation from eyes to top teeth
CN V, Trigeminal Nerve B3 - correct answer Mandibular
CN V, Trigeminal Nerve B3 (F) - correct answer Sensations from cheek, lower teeth, mandible,
mouth floor
Sensations on tongue: touch, temp, pressure, NOT Taste
Motor: Mastication, biting, chewing
CN VI Name - correct answer Abducens Nerve
CN VI, Abducens Nerve (F) - correct answer Lateral rectus muscle, abducts and moves eye
laterally
CN VI, Abducens Nerve (L) - correct answer Origin in pons
CN VI, Abducens Nerve (P) - correct answer Restricted lateral eye movement
CN VII Name - correct answer facial nerve
CN VII, Facial Nerve (F) - correct answer Motor: 5 branches innervate face, scalp neck muscles
Sensory: taste from the anterior two-thirds fo the tongue and proprioceptive signals of face and
scalp
CN VII, Facial Nerve (L) - correct answer Originates in the Pons and ends in the Pons and
gustatory cortex
CN VII, Facial Nerve (P) - correct answer Facial expression issues, loss of anterior taste
CN VIII Name - correct answer vestibulocochlear nerve
CN VIII Vestibular (F) - correct answer Orientation and movement of the head
CN VIII Vestibular (L) - correct answer Vestibular ganglion
CN VIII Cochlear (F) - correct answer Sense of hearing
CN VIII Cochlear (L) - correct answer Spiral ganglion
CN VIII Vestibulocochlear (P) - correct answer Loss of hearing and equilibrium balance,
potential vertigo
CN IX Name - correct answer glossopharyngeal nerve
CN IX, Glossopharyngeal Nerve (F) - correct answer Motor: ONly innervates the
stylopharyngeus muscle
Sensory: tate on posterior tongue, BP changes in carotid artery, blood chemistry changes
CN I Name - correct answer Olfactory Nerve
CN I, Olfactory Nerve (F) - correct answer smell
CN I, Olfactory Nerve (L) - correct answer Originate in superior portion of nasal cavity and
terminates in olfactory bulbs.
CN I, Olfactory Nerve (P) - correct answer Loss of Smell
CN II Name - correct answer Optic Nerve
CN II, Optic Nerve (F) - correct answer Sight
CN II, Optic Nerve (L) - correct answer Retina, through optic foramina of sphenoid bone, optic
chiasm to form optic tracts, thalamus, then to visual cortex
CN II, Optic Nerve (P) - correct answer Contralateral loss of vision
CN III Name - correct answer oculomotor nerve
CN III, Oculomotor Nerve (F) - correct answer Ciliary muscles, adapt the lens in your eye for
focus
Pupillary sphincter of iris
CN III, Oculomotor Nerve (L) - correct answer Mid brain origin, the motor muscles
CN III, Oculomotor Nerve (P) - correct answer Focal issues, inability to move eye to area, light
entry
CN IV Name - correct answer Trochlear Nerve
CN IV, Trochlear Nerve (F) - correct answer superior oblique muscle: medically rotate the eye
(intorsion)
CN IV, Trochlear Nerve (L) - correct answer Nucleus near mid brain, near to oculomotor nerves
CN IV, Trochlear Nerve (P) - correct answer inability to control cross eyed movement, loss of
motor
CN V Name - correct answer Trigeminal Nerve
CN V, Trigeminal Nerve B1 - correct answer Ophthalmic
CN V, Trigeminal Nerve B1 (F) - correct answer Sensations from forehead, lacrimal glands,
eyelids, ciliary bodies, nose sides
CN V, Trigeminal Nerve B2 - correct answer Maxillary
, CN V, Trigeminal Nerve B2 (F) - correct answer Sensation from eyes to top teeth
CN V, Trigeminal Nerve B3 - correct answer Mandibular
CN V, Trigeminal Nerve B3 (F) - correct answer Sensations from cheek, lower teeth, mandible,
mouth floor
Sensations on tongue: touch, temp, pressure, NOT Taste
Motor: Mastication, biting, chewing
CN VI Name - correct answer Abducens Nerve
CN VI, Abducens Nerve (F) - correct answer Lateral rectus muscle, abducts and moves eye
laterally
CN VI, Abducens Nerve (L) - correct answer Origin in pons
CN VI, Abducens Nerve (P) - correct answer Restricted lateral eye movement
CN VII Name - correct answer facial nerve
CN VII, Facial Nerve (F) - correct answer Motor: 5 branches innervate face, scalp neck muscles
Sensory: taste from the anterior two-thirds fo the tongue and proprioceptive signals of face and
scalp
CN VII, Facial Nerve (L) - correct answer Originates in the Pons and ends in the Pons and
gustatory cortex
CN VII, Facial Nerve (P) - correct answer Facial expression issues, loss of anterior taste
CN VIII Name - correct answer vestibulocochlear nerve
CN VIII Vestibular (F) - correct answer Orientation and movement of the head
CN VIII Vestibular (L) - correct answer Vestibular ganglion
CN VIII Cochlear (F) - correct answer Sense of hearing
CN VIII Cochlear (L) - correct answer Spiral ganglion
CN VIII Vestibulocochlear (P) - correct answer Loss of hearing and equilibrium balance,
potential vertigo
CN IX Name - correct answer glossopharyngeal nerve
CN IX, Glossopharyngeal Nerve (F) - correct answer Motor: ONly innervates the
stylopharyngeus muscle
Sensory: tate on posterior tongue, BP changes in carotid artery, blood chemistry changes
