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24 Cards in this Set
- Front
- Back
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Additional functional components that spinal nerves may have.
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Special visceral efferent (SVE)
Special visceral afferent (SVA) Special somatic afferent (SSA) |
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Function of SVE fibers
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Motor to skeletal muscle
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Function of SSA fibers
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Vision
Hearing Balance |
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Function of SVA fibers
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Smell
Taste |
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In the head, all sympathetic nerve fibers (GVE) are (PREGANGLIONIC|POSTGANGLIONIC) from nerve cell bodies located within the __________.
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Postganglionic
Superior cervical sympathetic ganglion |
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Parasympathetic nerve fibers (GVE) of cranial nerves originate in which nerves?
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III
VII IX X |
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GVA fibers are present only in cranial nerves:
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IX
X |
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Parasympathetic ganglion and target of CN III
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Ganglion - Ciliary
Target - Intrinsic eye muscles |
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Parasympathetic ganglion and target of CN VII
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Ganglion - Pterygopalatine
Target - Lacrimal gland, nasal cavity, maxillary sinus, palate Ganglion - Submandibular Target - Submandibular and sublingual glands |
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Parasympathetic ganglion and target of CN IX
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Ganglion - Otic
Target - Parotid gland |
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The 12 pairs of cranial nerves:
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I - olfactory
II – optic III – oculomotor IV – trochlear V – trigeminal VI – abducent VII – facial VIII – vestibulocochlear IX – glossopharyngeal X – vagus XI – accessory XII - hypoglossal |
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CN II fibers are formed by the axons of ganglion cells of the ___________ which convege at the ________.
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Retina
Optic disc |
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The two optic nerves join at:
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The optic chiasm
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Cranial nerves that innervate extraocular muscles.
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III
IV VI |
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The main sensory nerve of the face; it supplies most of the oral cavity and nasal cavities
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Trigeminal nerve (V)
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The sensory nerve of the orbit, forehead, and dorsum of the nose.
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Ophthalmic nerve (V1)
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The sensory nerve of the middle face. Also supplies GSA fibers to the nasal and oral cavities.
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Maxillary nerve (V2)
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What is the function of the mandibular division of the trigeminal nerve (V3)?
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Innervates muscles of the first pharyngeal arch (SVE)
Sensory (GSA) to the oral cavity, lower 1/3 of face, temple |
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Facial nerve (VII) carries preganglionic parasympathetic fibers that supply what?
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Lacrimal gland
Submandibular salivary glad Sublingual salivary gland |
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What does the vestibulocochlear nerve (VIII) do?
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Carries SSA nerve fibers from the inner ear to the brain.
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The glossopharyngeal nerve (IX) carries preganglionic parasympathetic fibers that supply what gland?
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Parotid gland
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The glossopharyngeal nerve (IX) innervates what muscle?
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Stylopharyngeus
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The glossopharyngeal nerve (IX) carries GVA fibers to what structures?
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Carotid sinus
Carotid body |
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What nerve sends GSE fibers to innervate the extrinsic and intrinsic muscles of the tongue?
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Hypoglossal nerve (XII)
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