Otitis externa
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Otitis externa
Neuro
Neuro
Bones of the cranium
Anatomy of the cranial base
Anatomy of the cerebral cortex
Introduction to the cranial nerves
Cranial nerve pathways
Anatomy of the olfactory (CN I) and optic (CN II) nerves
Anatomy of the oculomotor (CN III), trochlear (CN IV) and abducens (CN VI) nerves
Anatomy of the trigeminal nerve (CN V)
Anatomy of the facial nerve (CN VII)
Ascending and descending spinal tracts
Cerebral circulation
Nervous system anatomy and physiology
Cranial nerves
Motor cortex
Pyramidal and extrapyramidal tracts
Muscle spindles and golgi tendon organs
Spinal cord reflexes
Sensory receptor function
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Sympathetic nervous system
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Cerebellum
Basal ganglia: Direct and indirect pathway of movement
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Arteriovenous malformation
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Anticonvulsants and anxiolytics: Barbiturates
Nonbenzodiazepine anticonvulsants
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Anti-parkinson medications
Anatomy of the eye
Anatomy and physiology of the eye
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Hemianopsia
Homonymous hemianopsia
Conductive hearing loss
Tympanic membrane perforation
Otitis externa
Otitis media
Eustachian tube dysfunction
Vertigo
Meniere disease
Labyrinthitis
Acoustic neuroma (schwannoma)
Eye conditions: Refractive errors, lens disorders and glaucoma: Pathology review
Eye conditions: Retinal disorders: Pathology review
Eye conditions: Inflammation, infections and trauma: Pathology review
Vertigo: Pathology review
Key Takeaways
Otitis externa (also called swimmer's ear) is an inflammation of the outer ear and ear canal, commonly caused by Pseudomonas aeruginosa and Staphylococcus aureus bacterial infections. People with Otitis externa can present with ear pain and itchiness, ear canal swelling, impaired hearing, and purulent drainage from the ear. Treatment involves pain management, aural toilet, anti-inflammatories, and antibiotics.