6 - Head & Neck - Cranial Nerves Flashcards
Which 3 cranial nerves are purely special sensory?
CN I (Olfactory) CN II (Optic) CN VIII (Vestibulocochlear)
Which cranial nerves carry efferent autonomic fibres?
CN III
CN VII
CN IX
CN X
Which cranial nerves are purely motor?
CN III CN IV CN VI CN XI CN XII
Which cranial nerve supplies motor fibres to the ciliary muscles and the sphincter of the pupil?
CN III Oculomotor
Which cranial nerve supplies motor fibres to the superior oblique muscle of the eye?
CN IV Trochlear
Which cranial nerve supplies motor fibres to the lateral rectus muscle of the eye?
CN VI Abducens
Which cranial nerve supplies motor fibres to the muscles of mastication?
CN V Trigeminal
Which cranial nerve supplies motor fibres to the muscles of facial expression?
CN VII Facial
Which cranial nerve supplies sensory fibres for hearing?
CN VIII Vestibulocochlear
Which cranial nerve supplies general sensation to the pharynx, eustachian tube and middle ear cavity?
CN IX Glossopharyngeal
Which cranial nerve supplies motor fibres to the larynx, trachea, bronchial tree, heart and most of GI tract?
CN X Vagus
Which cranial nerve supplies motor fibres to Sternocleidomastoid?
CN XI Accessory
Which cranial nerve supplies motor to all intrinsic and extrinsic muscles of the tongue, except palatoglossus?
CN XII Hypoglossus
What parts of the head/neck have sensory innervation from the Trigeminal nerve (CN V)?
- Face
- Sinuses
- Teeth
A patient with a brainstem lesion in the pons may present with dysfunction of which cranial nerves?
CN V
CN VI
CN VII
CN VIII