Flashcards in Cranial Nerves Deck (27)
List the cranial nerves
Mnemonic for cranial nerves modality
sensory, motor or both (mixed)
CN I some
CN II say
CN IV matters
CN V but
CN VI my
CN VII brother
CN VIII says
CN IX big
CN X boobs
CN XI matter
CN I, the olfactory nerve, synapses in the thalmus (T/F)
-synapses in the olfactory bulb, continues as olfactory tract to the olfactory cortex
Which cranial nerve arises from the spinal cord?
CN XI, spinal accessory nerve
What are the functions of the Trigeminal nerve?
1. Sensation of the face
2. Proprioception of chewing
3. Motor control of mastication
What are the functions of the Facial nerve?
1. Motor (muscles of facial ex[ression)
2. Taste to anterior 2/3 of tongue
3. Parasympathetics to submandibular and sublingual glands
What are the functions of CN IX, glossopharyngeal nerve?
1. taste from posterior 1/3 of tongue
2. sensory from posterior tongue and upper pharynx
Where are the solitary nucleus, salivatory nucleus and nucleus ambiguous located?
What faramina does the Olfactory nerve exit the cranium via?
Cribriform plate of the ethmoid
Optic nerve exits the cranium through the _____
How is the optic nerve tested?
Ishihara- colour vision
Occuomotor nerve, trochlear nerve and the abducens nerve exit the cranium via the _____
superior orbital fissure
Vestibulocochlear nerve exits the cranium via the ____ _____ ____
Vestibulocochlear nerve exits the cranium via the internal acoustic meatus
How is CN VIII tested?
Rinnie and Weber test
Spinal Accessory leaves the cranium via______
Spinal Accessory leaves the cranium via the foramen magnum
How is CN XI tested?
shrug shoulders (trapezius)
turn head against resistnace (sternocleidomastoid)
CN XII exits the cranium via the _____ _____
CN XII exits the cranium via the hypoglossal canal
How is Hypoglossal nerve tested?
-tongue 'points' towards side of lesion
CN V1 leaves the cranium via the ____, CN V2 via _____ and CN V3 via _____
CN V1 leaves the cranium via the superior orbital fissure, CN V2 via foramen rotundum and CN V3 via foramen ovale
What nerve supplies the muscles of mastication (masseter, temporalis and pterygoids) and the tensor tympani muscle?
How does the facial nerve exit the cranium?
via the Internal acoustic meatus, followed by the stylomastoid foramen
What does the facial nerve supply?
-taste to anterior 2/3 of tongue
-parasympathetics to submandibular and sublingual glands
-muscles of facial expression
Via what cranial foramen does the Glossopharyngeal nerve (CNIX) exit the cranium?
What does the glossopharyngeal nerve, CN IX, supply?
-parotid gland parasympathetics
-sensation and taste to posterior 1/3 of tongue
- carotid sinus and carotid body baro- and chemo-receptors
-sensory from pharynx, middle ear, eustachian tube, tonsils
CN X exits the cranium via the _____
Muscles of the larynx are supplied by what nerve?
-branch of vagus