Notes
Slide Show
Outline
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ANATOMY LECTURE SERIES
SPECIAL SENSES
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SENSORY RECEPTORS
  • Sensory receptors are structures which are stimulated by changes in the environment
  • They are found all over the body in the skin, connective tissue, and muscle
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THE EYE
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THE EYE
  • Sclera - outer layer or white of eye
  • Cornea - center and front of sclera
  • Choroid coat - middle of the eye
  • Iris - colored, muscular part
  • Pupil - circular opening in iris
  • Lens - behind iris and pupil
  • Retina - innermost (third) coat
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THE EYE
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PATHWAY OF VISION
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EYE DISORDERS
  • Conjunctivitis
  • Glaucoma
  • Cataracts
  • Macular degeneration
  • Detached retina
  • Eye injuries
  • Vision defects
    • Presbyopia
    • Hyperopia
    • Myopia
    • Amblyopia
    • Astigmatism
    • Diplopia
    • Strabismus
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THE EAR
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THE EAR
  • The outer ear
    • collects sound waves and directs them into auditory canal
  • The middle ear
    • equalizes air pressure
  • The inner ear
    • fluid-filled duct vibrates with sound waves
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EAR DISORDERS
  • Otitis media
  • Otosclerosis
  • Tinnitus
  • Presbycusis
  • Meniere’s disease
  • Hearing loss
    • Conductive hearing loss
    • Sensorineural damage
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THE NOSE
  • The human nose can detect about 10,000 different smells
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DISORDERS OF THE NOSE
  • Rhinitis
  • Nasal polyps
  • Deviated nasal septum
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THE TONGUE
  • The tongue is a mass of muscle tissue with structures called papillae
  • Taste buds cover the papilla, which are stimulated by sweet, sour, salty, and bitter tastes