Cranial Nerves Flashcards
What is the mnemonic for the names of cranial nerves?
Old - Olfactory I Opie - Optic II Occasionally - Oculomotor III Tries - Trochlear IV Trigonometry - Trigeminal V And - Abducens VI Feels - Facial VII Very - Vestibulocochlear VIII Gloomy - Glossopharyngeal IX Vague - Vagus X And - Accessory XI Hypoactive - Hypoglossal XII
What is the mnemonic for the sensory/motor function of the cranial nerves?
S = Sensory; M = Motor; B = Both Some Say Money Matters But My Brother Says Big Brains Matter More
what is the type and function of cranial nerve (I) ?
Olfactory Neve I
sensory (afferent)
carry information from nose to brain
what is the opening that olfactory nerve (I) passes through?
cribriform plate
what is the type and function of cranial nerve (II) ?
Optic nerve II
sensory (afferent)
carry visual information from the eyes to the brain
what is the opening within the skull that the Optic Nerve II passes through?
optic canal
what is the type and function of cranial nerve (III) ?
Oculomotor nerve III
motor (efferent)
serves muscles that move the eye
what is the opening within the skull that the Oculomotor nerve III passes through?
superior orbital fissure
what is the type and function of cranial nerve (IV) ?
Trochlear nerve IV
motor (efferent)
serves muscles that move the eye
what is the opening within the skull that the Trochlear Neve IV passes through?
superior orbital fissure
what is the type and function of cranial nerve (V) ?
Trigeminal nerve V
both (mixed nerve)
sensory nerve of face
motor function for mastication
what are the three subdivision of the Trigeminal Nerve V? What do they serve to function?
Ophthalmic division - serve area near eyes
Maxillary division - serve area near cheeks and upper lip
Mandibular division - serve sensations to area near chin and anterior 2/3 of tongue (motor function for mastication)
where does the Ophthalmic, Maxillary, and Mandibular division of the Trigeminal nerve pass through?
Ophthalmic - superior orbital fissure
Maxillary - foramen rotundum
Mandibular - foramen ovale
what is the type and function of cranial nerve (VI) ?
Abducens nerve VI
motor (efferent)
serves muscles that move the eye
what is the opening within the skull that the Abducens Nerve VI passes through?
superior orbital fissure
what is the type and function of cranial nerve (VII) ?
Facial nerve VII
both (mixed nerve)
chief motor nerve of face
sensory to taste and touch of anterior 2/3 of tongue
what are the names and locations for the branches of the Facial nerve VII?
Temporal branch - above eyes Zygomatic branch - below eyes Buccal branch - to cheek Mandibular branch - to mouth Cervical branch - to neck area
what is the openings within the skull that the Facial nerve VII passes through?
internal acoustic meatus +
stylomastoid foramen
what is the type and function of cranial nerve (VIII) ?
Vestibulocochlear nerve VIII
sensory (afferent)
carries information for the equilibrium and hearing from inner ear to brain
what is the opening within the skull that the Vestibulocochlear nerve VIII passes through?
internal acoustic meatus
what is the type and function of cranial nerve (IX) ?
Glossopharyngeal nerve IX
both (mixed nerve)
sensory to taste and touch for posterior tongue (1/3) and pharynx
motor function to some muscles involved with swallowing
what is the opening within the skull that the Glossopharyngeal IX passes through?
jugular foramen
what is the type and function of cranial nerve (X) ?
Vagus Nerve X
both (mixed nerve)
sensory and motor function to thoracic and abdominal organs
what is the opening within the skull that the Vagus nerve X passes through?
jugular foramen
