Cranial Nerves
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12 Terms
1
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Olfactory Nerve
Cranial nerve 1
*purely sensory
*sense of smell
*purely sensory
*sense of smell
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Optic Nerve
Cranial Nerve II
*purely sensory
*sense of sight
*purely sensory
*sense of sight
3
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Oculomotor Nerve
Cranial Nerve III
*purely motor
*stimulates the ciliary smooth muscle - constrict pupil and bend lens (parasympathetic funcion
*moves eyeyball by controlling 4 eye skeletal muscles: medial rectus, inferior rectus, superior rectus, and inferior oblique
*attaches to the brainstem
*tested to check for brainstem activity (pupils fixed and dilated means that it is not functioning properly)
*purely motor
*stimulates the ciliary smooth muscle - constrict pupil and bend lens (parasympathetic funcion
*moves eyeyball by controlling 4 eye skeletal muscles: medial rectus, inferior rectus, superior rectus, and inferior oblique
*attaches to the brainstem
*tested to check for brainstem activity (pupils fixed and dilated means that it is not functioning properly)
4
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Trochlear Nerve
Cranial Nerve IV
*moves eyeball by controlling the superior oblique skeletal muscle
*moves eyeball by controlling the superior oblique skeletal muscle
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Trigeminal Nerve
*Cranial Nerve V
*responsible for sense of feeling on the face (three branches - forehead, upper jaw, and lower jaw)
*responsible for sense of feeling on the face (three branches - forehead, upper jaw, and lower jaw)
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Abducens Nerve
Cranial Nerve VI
*purely motor
*moves eyeball (abducts it) by controlling the lateral rectus eye muscle
*purely motor
*moves eyeball (abducts it) by controlling the lateral rectus eye muscle
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Facial Nerve
Cranial nerve VII
*Sensory - sense of taste for the front of the tongue. *Somatic Movement of the facial expression skeletal muscles
*parasympathetic stimulation of salivary and lacrimal glands.
*Sensory - sense of taste for the front of the tongue. *Somatic Movement of the facial expression skeletal muscles
*parasympathetic stimulation of salivary and lacrimal glands.
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vestibulocochlear nerve
cranial nerve VIII
*purely sensory
*carries balance information and hearing to the temporal lobe for processing
*purely sensory
*carries balance information and hearing to the temporal lobe for processing
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glossopharyngeal nerve ("tongue and pharynx")
Cranial nerve IX.
*Sense of taste for the back of the tongue. *Somatic movement of the skeletal muscles for swallowing
*Parasympathetic stimulation of the parotid salivary glands.
*carries baroreptor information from the carotid sinuses
*Sense of taste for the back of the tongue. *Somatic movement of the skeletal muscles for swallowing
*Parasympathetic stimulation of the parotid salivary glands.
*carries baroreptor information from the carotid sinuses
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Vagus nerve ("wanderer")
Cranial nerve X.
*Sensory information from the internal organs -- particularly notable for connecting GI activity with the brainstem, and for carrying baroreceptor information from the heart to the brainstem.
*Parasympathetic motor for internal (visceral) organs - slows heart, dilates bronchi, stimulates GI organs, etc.
*Sensory information from the internal organs -- particularly notable for connecting GI activity with the brainstem, and for carrying baroreceptor information from the heart to the brainstem.
*Parasympathetic motor for internal (visceral) organs - slows heart, dilates bronchi, stimulates GI organs, etc.
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accessory nerve
Cranial Nerve XI
*purely somatic motor to move trapezius and sternocleidomastoid
*purely somatic motor to move trapezius and sternocleidomastoid
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hypoglossal ("under tongue")
Cranial Nerve XII
*purely somatic motor
*controls tongue skeletal muscles
*purely somatic motor
*controls tongue skeletal muscles
