Lecture Cranial Nerves Flashcards
CN I (olfactory) - passageway
cribriform plate foramina
CN 1 - modality
special sensory - olfaction/smell
CN II (optic nerve) - passageway
optic canal
CN II - modality
special sensory - vision
CN III (oculomotor) - passageway
superior orbital fissure
CN III - modalities
somatic motor: superior, medial, inferior rectus + inferior oblique
visceral motor: sphincter pupillae, ciliary muscle
CN IV (trochlear) - passageway
superior orbital fissure
CN IV - modality
somatic motor: superior oblique
CN V (trigeminal) - passageway
superior orbital fissure
CN V - modalities
somatic sensory: temperature, touch, pain from face
somatic special motor (mandibular): muscles of mastication, myelohyoid, anterior belly of the digastric, tensor tympani, tensor veli palatini
CN VI (abducens) - passageway
superior orbital fissure
CN VI - modality
somatic motor - lateral rectus
CN VII (facial) - passageway
internal acoustic meatus + stylomastoid foramen
CN VII - modalities
special sensory: taste from anterior 2/3 tongue
visceral motor: lacrimal, sublingual & submandibular glands
visceral sensory: sensory from lacrimal, sublingual, & submandibular glands
somatic sensory: area behind ear
somatic special motor: posterior belly of digastric, stylohyoid, stapedius muscles, muscles of facial expression
CN VIII (vestibulocochlear) - passageway
internal acoustic meatus
CN VIII - modality
special sensory: equilibrium, balance, hearing
CN IX (glossopharyngeal) - passageway
jugular foramen
CN IX - modalities
special sensory: taste from posterior 1/3 of tongue
somatic sensory: pharynx
visceral sensory: carotid bodies, parotid gland
somatic special motor: stylopharyngeus
visceral motor: parotid gland
CN X (vagus) - passageway
jugular foramen
CN X - modalities
special sensory: taste from root of tonuge and epiglottis
visceral motor: heart, pharynx, larynx, trachea, lungs, abdominal organs to first 2/3 transverse colon
visceral sensory: heart, lungs, abdominals to 2/3 transverse colon
somatic sensory: external acoustic meaturs, eardrum, laryngopharynx, larynx
somatic special motor: pharynx, larynx, palate muscle
CN XI (accessory) - passageway
jugular foramen
CN XI - modality
somatic special motor - trapezius + sternocleidomastoid
CN XII (hypoglossal) - passageway
hypoglossal canal
CN XII - modality
somatic motor: intrinsic and extrinsic muscles of tongue
