Cranial nerves Flashcards
What is the name of the first cranial nerve?
Olfactory nerve
Is the olfactory nerve sensory, motor, or mixed?
Sensory
What is the primary function of the olfactory nerve?
Sense of smell
What is the name of the second cranial nerve?
Optic nerve
Is the optic nerve sensory, motor, or mixed?
Sensory
What is the primary function of the optic nerve?
Vision
What is the name of the third cranial nerve?
Oculomotor nerve
Is the oculomotor nerve sensory, motor, or mixed?
Motor
What is the primary function of the oculomotor nerve?
Eye movement and pupil constriction
What is the name of the fourth cranial nerve?
Trochlear nerve
Is the trochlear nerve sensory, motor, or mixed?
Motor
What is the primary function of the trochlear nerve?
Eye movement
What is the name of the fifth cranial nerve?
Trigeminal nerve
Is the trigeminal nerve sensory, motor, or mixed?
Mixed
What are the three branches of the trigeminal nerve?
Ophthalmic, maxillary, and mandibular
What is the primary function of the motor component of the trigeminal nerve?
Muscle movement for mastication
What is the name of the sixth cranial nerve?
Abducens nerve
Is the abducens nerve sensory, motor, or mixed?
Motor
What is the primary function of the abducens nerve?
Eye movement
What is the name of the seventh cranial nerve?
Facial nerve
Is the facial nerve sensory, motor, or mixed?
Mixed
What are the primary functions of the facial nerve?
Facial expression, taste
What is the name of the eighth cranial nerve?
Vestibulocochlear nerve
Is the vestibulocochlear nerve sensory, motor, or mixed?
Mixed
What are the primary functions of the vestibulocochlear nerve?
Hearing, inner ear movements and balance
What is the name of the ninth cranial nerve?
Glossopharyngeal nerve
Is the glossopharyngeal nerve sensory, motor, or mixed?
Mixed
What is one primary function of the glossopharyngeal nerve?
Taste (tongue) and swallowing (pharynx)
What is the name of the tenth cranial nerve?
Vagus nerve
Is the vagus nerve sensory, motor, or mixed?
Mixed
What are the primary functions of the vagus nerve?
- Parasympathetic nervous system: control of heart, lungs, and digestive tract
-Detects blood gas and PH imbalances
-Detects stretch in blood vessels - Sends somatic instructions to pharynx and larynx (swallowing)
What is the name of the eleventh cranial nerve?
Accessory nerve
Is the accessory nerve sensory, motor, or mixed?
Motor
What is the primary function of the accessory nerve?
Shoulder movement and head rotation (neck movements)
What is the name of the twelfth cranial nerve?
Hypoglossal nerve
Is the hypoglossal nerve sensory, motor, or mixed?
Motor
What is the primary function of the hypoglossal nerve?
Tongue movement
What is the sentence used to remember the ten cranial nerves?
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