Term
| Special visceral sensory nerve fibers have what function? |
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Definition
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Term
| Special somatic sensory nerve fibers serve what function? |
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Definition
| Smell, vision, hearing, balance |
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Term
| Special visceral motor nerve fibers serve what function? |
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Definition
| Innervate voluntary muscle arising from branchial arch mesoderm (embryonic "gills") |
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Term
| True or false: the retina is part of the brain |
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Definition
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Term
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Definition
| Area of most acute (color) vision |
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Term
| What structures pass through the optic disc? |
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Definition
| Nerves that connect the retina to the brain; ophthalmic artery |
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Term
| What is the clinical significance of the ophthalmic artery? |
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Definition
| Only blood supply to retina; damage can induce sudden blindness |
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Term
| How do you test the medial rectus muscle? |
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Definition
| Have the patient look medially (toward nose) |
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Term
| How do you test the lateral rectus muscle? |
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Definition
| Have the patient look laterally |
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Term
| How do you test the superior rectus muscle? |
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Definition
| Have the patient look up & laterally |
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Term
| How do you test the inferior rectus muscle? |
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Definition
| Have the pt look down & laterally |
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Term
| How do you test the superior oblique muscle? |
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Definition
| Have the pt look down & medially |
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Term
| How do you test the inferior oblique muscle? |
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Definition
| Have the pt look up & medially |
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Term
| Which nerve supplies the superior oblique muscle? |
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Definition
| Trochlear (IV) (Trochlea = pulley) |
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Term
| Which nerve supplies the lateral rectus muscle? |
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Definition
| Abducens (VI) (abduction) |
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Term
| Which muscles are supplied by the oculomotor nerve? |
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Definition
| Inferior oblique; medial rectus; superior rectus; inferior rectus; levator palpebrae superioris |
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Term
| Describe the nerve pathways for the pupillary light reflex (motor) |
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Definition
| Oculomotor (III) parasympathetics synapse in the ciliary ganglion; postganglionics travel to the pupil to constrict/dilate |
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Term
| How do you test the supra-orbital nerve? |
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Definition
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Term
| How do you test the infra-orbital nerve? |
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Definition
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Term
| How do you test the mental nerve? |
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Definition
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Term
| Describe the main function of the pterygopalatine ganglion |
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Definition
| Parasympathetic fibers from Facial nerve (VII) synapse here. Postganglionics "hitchhike" w/ trigeminal to innervate the nasal secretory glands & lacrimal gland |
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Term
| Which nerve innervates the muscles of mastication? |
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Definition
| Mandibular branch of trigeminal |
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Term
| Describe the function of the submandibular ganglion |
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Definition
| Parasympathetics from Facial nerve travel along chorda tympani to synapse here. Postganglionics "hitchhike" w/ lingual branch of trigeminal to innervate submandibular & sublingual salivary glands |
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Term
| Which nerve supplies taste to anterior 2/3 of tongue? |
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Definition
| Facial (via chorda tympani) |
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Term
| Which nerve supplies general sensation (temp, pain) to anterior 2/3 of tongue? |
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Definition
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Term
| Course of branches of facial nerve |
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Definition
| Split at geniculate ganglion (petrosal nerve goes to pterygopalatine ganglion, chorda tympani to submandibular ganglion) |
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Term
| Which nerve innervates the parotid gland? |
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Definition
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Term
| Which nerves are involved in the corneal reflex? |
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Definition
| Sensation- trigeminal; motor to orbicularis oculi- facial |
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Term
| Which nerve supplies the laryngeal pharynx? |
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Definition
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Term
| Which nerve supplies sensation to the oropharynx as well as taste & gen sensation to posterior 1/3 of tongue? |
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Definition
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Term
| Which nerves are involved in the gag reflex? |
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Definition
| Sensation- glossopharyngeal; motor- vagus |
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Term
| What are the functions of the vagus nerve? |
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Definition
1) Parasympathetics to abdominal/thoracic viscera
2) Voluntary motor to pharyngeal/laryngeal muscles (swallowing; speech)
3) sensation in laryngopharynx
4) some taste in oropharynx/posterior tongue |
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Term
| What muscles are innervated by the accessory nerve? |
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Definition
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Term
| How do you test the hypoglossal nerve? |
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Definition
| Ask pt to stick out their tongue |
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