Cranial Nerves Flashcards
Olfactory (I)
-cerebral cortex via olfactory bulbs
-cribriform plate
-sensory
-smell
Optic (II)
-thalamus
-optic canal
-sensory
-vision
Oculomotor (III)
-ventral midbrain
-superior orbital fissure
-motor; PNS
-controls extrinsic eye muscles;
Trochlear (IV)
-dorsal midbrain
-superior orbital fissure
-motor
-controls extrinsic eye muscle
Trigeminal (V)
-pons
-superior orbital fissure, foramen rotundum, and foramen ovale
-mixed
-controls muscles of aw; carries sensory signs from facial region and tongue (other than special senses)
Abducens (VI)
-inferior pons
-superior orbital fissure
-motor
-controls an extrinsic eye muscle
Facial (VII)
-inferior pons
-internal acoustic meatus and stylomastiod foramen
-mixed;PNS
-controls muscles of face (other than jaw); controls lacrimal, nasal, and most salivary glands (PS); carries sensory signals from taste buds of anterior 2/3 of tongue
Vestibuolcochlear (VIII)
-pons/medulla
-internal acoustic meatus
-sensory
-hearing; balance
Glossopharyngeal (IX)
-medulla
-jugular foramen
-mixed; PNS
-controls part of tongue and pharynx; controls some salivary glands (PS); carries sensory signals from taste buds of posterior 1/3 of tongue
Vagus (X)
-medulla
-jugular foramen
-mixed; PNS
-controls pharynx, larynx, during swallowing: controls thoracic and abdominal viscera (PS);carries sensory signals from thoracic and abdominal viscera
Accessory (XI)
-medulla/spinal cord
-jugular foramen
-motor
-cranial root controls larynx, pharynx, soft plate (in conjunction with vagus nerve); spinal root controls trapezius and sternocliedimastoid muscles
Hypoglossal (XII)
-medulla
-hypoglossal canal
-motor
-controls movement of the tongue
Hypoglossal (XII)
-medulla
-hypoglossal canal
-motor
-controls movement of the tongue
