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Special Senses: The Eyes and Ears. Chapter 11. Overview of Structures, Combining Forms, and Functions of the Eyes and Ears. Eyes (and Vison). Primary Function Receptor organs for the sense of sight Related Word Parts (Combining Forms) opt/i, opt/o, optic/o ophthalm/o. - PowerPoint PPT Presentation
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7th Edition
Medical Terminology for Health ProfessionsAnn Ehrlich/Carol L.Schroeder
© 2013 Delmar, Cengage Learning. All Rights Reserved
Special Senses: The Eyes and Ears
Special Senses: The Eyes and Ears
Chapter 11
© 2013 Delmar, Cengage Learning. All Rights Reserved
Overview of Structures, Combining Forms,and Functions of the Eyes and Ears
Overview of Structures, Combining Forms,and Functions of the Eyes and Ears
© 2013 Delmar, Cengage Learning. All Rights Reserved
Eyes (and Vison)
• Primary Function– Receptor organs for the sense of sight
• Related Word Parts (Combining Forms)– opt/i, opt/o, optic/o
– ophthalm/o
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Structures of the Eyes
• Adnexa: structures outside the eyeball– Orbit, eye muscles, eyelids, eyelashes,
conjunctiva, lacrimal apparatus
• Eyeball: also known as the globe
(continues)
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Structures of the Eyes
(continues)
© 2013 Delmar, Cengage Learning. All Rights Reserved
Structures of the Eyes
(continues)
© 2013 Delmar, Cengage Learning. All Rights Reserved
Structures of the Eyes
(continues)
© 2013 Delmar, Cengage Learning. All Rights Reserved
Structures of the Eyes
© 2013 Delmar, Cengage Learning. All Rights Reserved
Lacrimal Apparatus
• Primary Function – Produces, stores, and removes tears
• Related Word Parts (Combining Forms)– dacryocyst/o– lacrim/o
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Iris
• Primary Function – Controls the amount of light entering the eye
• Related Word Parts (Combining Forms)– ir/i, ir/o – irid/o– irit/o
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Lens
• Primary Function – Focuses rays of light on the retina
• Related Word Parts (Combining Forms)– phac/o
– phak/o
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Retina
• Primary Functions – Converts light images into electrical impulses and
transmits them to the brain
• Related Word Parts (Combining Forms)– retin/o
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Ears (Hearing and Sound)
• Primary Function – Receptor organs for the sense of hearing– Help to maintain balance
• Related Word Parts (Combining Forms)– acous/o, acoust/o– audi/o, audit/o– ot/o
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Structures of the Ears
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• Primary Function – Transmits sound waves to the middle ear
• Related Word Parts (Combining Forms)– pinn/i
Outer Ear
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• Primary Function – Transmits sound waves to the inner ear
• Related Word Parts (Combining Forms)– myring/o
– tympan/o
Middle Ear
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Inner Ear
• Primary Function – Receives sound vibrations and transmits them to
the brain
• Related Word Parts (Combining Forms)– labyrinth/o
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Key Word Parts and Definitions
• blephar/o – eyelid
• -cusis– hearing
• irid/o – iris, colored part of eye
• kerat/o– horny, hard, cornea
(continues)
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Key Word Parts and Definitions
• myring/o – tympanic membrane, eardrum
• ophthalm/o– eye, vision
• -opia– vision condition
• opt/o– eye, vision
(continues)
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Key Word Parts and Definitions
• ot/o – ear, hearing
• phak/o– lens of eye
• presby/o– old age
• retin/o– retina, net
(continues)
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Key Word Parts and Definitions
• scler/o – sclera, white of eye, hard
• trop/o– turn, change
• tympan/o– tympanic membrane, eardrum
© 2013 Delmar, Cengage Learning. All Rights Reserved
QuestionsQuestions
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Question
The smallest bone in the body is the stapes, orstirrup bone, of the middle ear.
True or False?
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Answer
True
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Question
A ringing, buzzing, or roaring sound in one orboth ears is called:
a. tinnitus
b. labyrinthitis
c. tintinitus
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Answer
a. tinnitus
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Question
Men are how many times more likely to becolor-blind than women?
a. 2
b. 10
c. 5
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Answer
b. Men are 10 times more likely to be color-blind.
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Question
If not treated promptly, open-angle glaucomacan cause blindness in as little as 2 days.
True or False?
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Answer
False: Closed-angle, or acute, glaucoma cancause sudden blindness if not treated immediately.
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Answers to Learning ExercisesAnswers to Learning Exercises
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Matching Word Parts 1
11.1. kerat/o
11.2. blephar/o
11.3. opt/o
11.4. -cusis
11.5. -metry
Matching Word Parts 2
11.6. myring/o
11.7. ophthalm/o
11.8. irid/o
11.9. presby/o
11.10. -opia
Chapter 11 Answers
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Matching Word Parts 3
11.11. ot/o
11.12. tympan/o
11.13. scler/o
11.14. retin/o
11.15. trop/o
Definitions11.16. sclera11.17. cochlea11.18. optic disk11.19. tympanic membrane11.20. oval window11.21. incus11.22. presbyopia11.23. retinopexy11.24. entropion11.25. otitis media
Chapter 11 Answers
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Matching Conditions
11.26. esotropia
11.27. diplopia
11.28. hyperopia
11.29. myopia
11.30. exotropia
Which Word?
11.31. diopter
11.32. otorrhagia
11.33. myringotomy
11.34. glaucoma
11.35. uveitis
Chapter 11 Answers
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Spelling Counts
11.36. eustachian
11.37. cerumen
11.38. astigmatism
11.39. labyrinthitis
11.40. Snellen
Abbreviation Identification
11.41. conjunctivitis
11.42. intraocular lens
11.43. right eye
11.44. intraocular pressure
11.45. macular degeneration
Chapter 11 Answers
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Term Selection
11.46. myopia
11.47. anisocoria
11.48. mastoidectomy
11.49. hordeolum
11.50. otomycosis
Sentence Completion
11.51. refraction
11.52. vertigo
11.53. optometrist
11.54. keratitis
11.55. monochromatism
Chapter 11 Answers
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Word Surgery
11.56. anis/o, cor, -ia
11.57. emmetr, -opia
11.58. ot/o, py/o, -rrhea
11.59. presby, -cusis
11.60. xer, ophthalm, -ia
True/False
11.61. False
11.62. True
11.63. False
11.64. True
11.65. True
Chapter 11 Answers
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Clinical Conditions11.66. otoplasty11.67. barotrauma11.68. iridectomy11.69. hemianopia11.70. fluorescein11.71. periorbital11.72. nyctalopia11.73. tinnitus11.74. chalazion11.75. conjunctivitis
Which Is the Correct Medical Term?
11.76. papilledema
11.77. photopsia
11.78. ametropia
11.79. canthus
11.80. impacted cerumen
Chapter 11 Answers
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Challenge Word Building
11.81. iridalgia
11.82. blepharitis
11.83. lacrimitis
11.84. blepharopathy
11.85. ophthalmology
11.86. blepharedema
11.87. lacrimotomy
11.88. labyrinthotomy
11.89. iridopathy
11.90. retinectomy
Labeling Exercises
11.91. cornea
11.92. chamber
11.93. lens
11.94. iris
11.95. fovea
11.96. pinna
11.97. auditory
11.98. tympanic
11.99. eustachian
11.100. cochlea
Chapter 11 Answers