Cranial nerves Flashcards
mnemonic for the 12 cranial nerves
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mnemonic for the classification of the 12 cranial nerves
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Cranial nerve (I): name, classification, and function
- olfactory
- special sensory
- olfaction (smell)
Cranial nerve (II): name, classification, and function
- Optic
- special sensory
- vision (sight)
Cranial nerve (III): name, classification, and function
- Oculomotor
- Motor (somatic and autonomic)
- Somatic: to move eyeballs and upper eye lid
- Autonomic: adjustment of lens for near vision (accommodation), and constriction of pupil
Cranial nerve (IV): name, classification, and function
- Trochlear
- Motor (somatic)
- To move eyeballs
Cranial nerve (V): name, classification, and function
- Trigeminal
- Both (sensory and motor (autonomic)
- Sensory: touch, pain and thermal sensations from scalp, face and oral cavity (including teeth and anterior 2/3rds of tongue)
- Motor: chewing and controls middle ear muscles
Cranial nerve (VI): name, classification, and function
- Abducens
- Motor
- somatic movement of eyeballs
Cranial nerve (VII): name, classification, and function
- Facial
- Both ( sensory and motor)
- sensory: touch, pain and thermal sensations of scalp, face and oral cavity (including teeth and anterior 2/3rds of tongue)
- motor (branchial): controls facial expressions
- motor (autonomic): secretion of tears and saliva
Cranial nerve (VIII): name, classification, and function
- Vestibulocochlear
- Sensory
- hearing and equillibrium
Cranial nerve (IX): name, classification, and function
- Glossopharyngeal
- Both (sensory and motor)
Sensory: - taste from posterior 1/3 of tongue
- proprioception in some swallowing muscles
- monitors bp, O2, and CO2 levels in blood
- touch, pain and thermal sensations in external ear and upper pharynx
Motor: (branchial) - assists in swallowing
Motor: (autonomic) - secretion of saliva
Cranial nerve (X): name, classification, and function
- Vagus
- Both (sensory and motor)
Sensory: - taste from epiglottis
- proprioception from throat and voice box
- monitors bp, O2, and CO2 in blood
- touch, pain and thermal sensations in skin of external ear
- sensations from thoracic and abdominal organs
Motor: (branchial) - swallowing, vocalizing, and coughing
Motor: (autonomic) - motility and secretion of digestive canal organs
- constriction of respiratory passageways
- decreases heart rate
Cranial nerve (XI): name, classification, and function
- Accessory
- Motor
- branchial movement of head and pectoral girdle
Cranial nerve (XII): name, classification, and function
- Hypoglossal
- Motor
- Somatic speech, manipulation of food and swallowing N