Cranial nerves and their nuclei

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21 Terms

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General somatic efferents

skeletal muscles

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Special visceral efferents

masticatory muscles, muscles of facial expression, muscles of larynx/pharynx

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General visceral efferents

smooth muscles; cardiac muscles, glands

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General somatic afferents

skin, muscles

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Special somatic afferents

from optic and acoustic receptors

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General visceral afferents

viscera, blood vessels

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Special visceral afferents

taste buds

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Eye-movement cranial nerves

III. Oculomotor nerve
IV. Trochlear n.
VI. Abducens n.

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Mixed nerves:

V. Trigeminal n.
VII. Facial n.
IX. Glossopharyngeal n.
X. Vagus n.

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Special sensory nerves

I. Olfactory n.
II. Optic n.
VIII. Vestibulocochlear n.

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Motor nerves

XI. Accessory n.
XII. Hypoglossal n.

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Oculomotor n. (III):

GSE: motor nucl. n. III
GVE: accessory nulc n. III. / nucleus of Edinger-Westphal

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Trochlear n. (IV):

GSE: motor nucl n. IV

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Abducens n. (VI)

GSE: motor nucl n. VI

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Trigeminal n (V):

SM/SVE: nucl. mot. n. V. (masticatory muscles)
GSA: nucl. spinalis n. V.: eg. pain, temperature
GSA: main sensory nucl. n. V.: pl. fine touch
GSA: mesencephalic nucl. n. V.: from muscle spindle(proprioceptive)

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Facial n (VII)

SM/SVE: mot nucl n. VII (facial muscles)
VM/GVE: superior salivatory nucl. (sub mandibular and sublingual gland, lacrimal gl.)
SVA: solitary nucl (tasting)
GSA: nucl tractus spinalis n. V

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Glossopharyngeal n (IX.)

SM/SVE: nucl ambiguus (pharyngeal muscles)
VM/GVE: inferior salivatory nucl (parotid gl)
SVA/GVA: solitary nucl (tasting, tongue)
GSA: spinal nucl n. V. (eg external acoustic meatus)

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Vagus n (X):

SM/SVE: nucl. ambiguus (muscles of pharynx/larynx)
VM/GVE: dorsal nucl X (abdominal/thoracic viscera)
VS/SVA/GVA: solitary nucl (eg. tasting, tongue)
GSA: spinal trigeminal nucl (auricle, dura mater)

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Vestibulocochlear n (VIII.)

SSA: dorsal and ventral cochlear nuclei (hearing)
SSA: vestibular (sup, inf, med, lat) nuclei (balance)

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Accessory n (XI.):

SM/SVE: nucl. ambiguus
- spinal roots: m. trapezius, m. SCOM
- cranial roots: muscles of pharynx, larynx

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Hypoglossal n (XII)

GSE: mot nucl n. XII.