CNs- CNS Origin/Nuclei/Axons/Cells of Origin Flashcards
What two cranial nerves arise from the cerebrum?
CN I- olfactory (smell)
CN II- optic (vision)
What two cranial nerves arise from the midbrain?
CN III- oculomotor
CN IV- trochlear
What 4 cranial nerves arise from the pons?
CN V - trigeminal
CN VI - abducens
CN VII - facial
CN VIII -vestibulocochlear (hearing, equilibrium)
What 3 cranial nerves arise from the medulla ?
CN IX - glossopharyngeal
CN X - vagus
CN XII - hypoglossal
What is the only cranial nerve that arises from the spinal cord?
CN XI - spinal accessory nerve
What are the three structures that make up the brainstem?
midbrain, pons, medulla
What 4 cranial nerves provide parasympathetic innervation?
CN III - oculomotor
CN VII- facial
CN IX- glossopharyngeal
CN X- vagus
What 3 cranial nerves only provide sensory innervation?
I- olfactory
II-optic
VIII- vestibulocochlear
What 3 cranial nerves provide sensory, motor, and parasympathetic innervation?
CN VII - facial
CN IX- glossopharyngeal
CN X- vagus
Axon functions of CN I - Olfactory
sensory (smell)
Axon functions of CN II, optic
sensory (vision)
Axon functions of CN III, oculomotor
motor, preganglionic parasympathetic
Axon functions of CN IV- trochlear
motor
Axon functions of CN V- trigeminal
sensory, branchial motor (mandibular division)
Axon functions - CN VI, abducens
motor