Chapter 11 Special Senses The Eyes and Ears

Chapter 11 Special Senses: The Eyes and Ears © 2009 Delmar, Cengage Learning

Overview of Structures, Combining Forms, and Functions © 2009 Delmar, Cengage Learning

Eyes (and Vision) • Primary Function – Receptor organs for the sense of sight. • Related Combining Forms – opt/i, opt/o, optic/o – ophthalm/o © 2009 Delmar, Cengage Learning

Adnexa of the Eye • Primary Functions – Accessory structures that provide external protection and allow the eyes to move. © 2009 Delmar, Cengage Learning

Major Structures of the Adnexa of the Eye © 2009 Delmar, Cengage Learning

Lacrimal Apparatus • Primary Functions – Produces, stores, and removes tears. • Related Combining Forms – dacryocyst/o – lacrim/o © 2009 Delmar, Cengage Learning

Structures of the Eyeball © 2009 Delmar, Cengage Learning

Iris • Primary Function – Controls the amount of light entering the eye. • Related Combining Forms – ir/i, ir/o – irid/o – irit/o © 2009 Delmar, Cengage Learning

Lens • Primary Function – Focuses rays of light on the retina. • Related Combining Forms – phac/o – phak/o © 2009 Delmar, Cengage Learning

Retina • Primary Functions – Converts light images into electrical impulses and transmits them to the brain. • Related Combining Form – retin/o © 2009 Delmar, Cengage Learning

Ears (Hearing and Sound) • Primary Functions – Receptor organs for the sense of hearing. – Help to maintain balance. © 2009 Delmar, Cengage Learning

Ears (Hearing and Sound) • Related Combining Forms – acous/o, acoust/o – audi/o, audit/o – ot/o © 2009 Delmar, Cengage Learning

Structures of the Ear © 2009 Delmar, Cengage Learning

Outer Ear • Primary Function – Transmits sound waves to the middle ear. • Related Combining Form – pinn/i © 2009 Delmar, Cengage Learning

Middle Ear • Primary Function – Transmits sound waves to the inner ear. • Related Combining Forms – myring/o – tympan/o © 2009 Delmar, Cengage Learning

Inner Ear • Primary Functions – Receives sound vibrations and transmits them to the brain. • Related Combining Form – labyrinth/o © 2009 Delmar, Cengage Learning

Animations © 2009 Delmar, Cengage Learning

How We Hear [Insert Hearing animation] Click to play animation © 2009 Delmar, Cengage Learning

The Eardrum in Health and Infection [Insert The Eardrum animation] Click to play animation © 2009 Delmar, Cengage Learning

How We See [Insert Vision animation] Click to play animation © 2009 Delmar, Cengage Learning

Cataracts [Insert Cataracts animation] Click to play animation © 2009 Delmar, Cengage Learning

Glaucoma [Insert Glaucoma animation] Click to play animation © 2009 Delmar, Cengage Learning

Answers to Learning Exercises © 2009 Delmar, Cengage Learning

Chapter 11 Answers Matching Word Parts 1 11. 1. kerat/o 11. 2. belphar/o 11. 3. opt/o 11. 4. -cusis 11. 5. -metry © 2009 Delmar, Cengage Learning 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 Matching Word Parts 3 11. ot/o 11. 12. tympan/o 11. 13. scler/o 11. 14. retin/o 11. 15. trop/o © 2009 Delmar, Cengage Learning Definitions 11. 16. sclera 11. 17. cochlea 11. 18. optic disk 11. 19. tympanic membrane 11. 20. oval window

Chapter 11 Answers Definitions 11. 21. incus 11. 22. presbyopia 11. 23. retinopexy 11. 24. entropion 11. 25. purulent © 2009 Delmar, Cengage Learning Matching Conditions 11. 26. esotropia 11. 27. diplopia 11. 28. hyperopia 11. 29. myopia 11. 30. strabismus

Chapter 11 Answers Which Word? 11. 31. diopter 11. 32. otorrhagia 11. 33. tympanostomy 11. 34. glaucoma 11. 35. binaural © 2009 Delmar, Cengage Learning Spelling Counts 11. 36. eustachian 11. 37. cerumen 11. 38. astigmatism 11. 39. labyrinthotomy 11. 40. Snellen

Chapter 11 Answers Abbreviation Identification 11. 41. astigmatism 11. 42. intraocular lens 11. 43. right eye 11. 44. intraocular pressure 11. 45. macular degeneration © 2009 Delmar, Cengage Learning Term Selection 11. 46. myopia 11. 47. anisocoria 11. 48. mastoidectomy 11. 49. hordeolum 11. 50. otomycosis

Chapter 11 Answers Sentence Completion 11. 51. refraction 11. 52. vertigo 11. 53. optometrist 11. 54. keratitis 11. 55. monochromatism © 2009 Delmar, Cengage Learning Word Surgery 11. 56. opthalm/o, -scopy 11. 57. emmetr, -opia 11. 58. ot/o, py/o, -rrhea 11. 59. presby, -cusis 11. 60. xer, ophthalm, -ia

Chapter 11 Answers True/False 11. 61. False 11. 62. True 11. 63. False 11. 64. True 11. 65. True © 2009 Delmar, Cengage Learning Clinical Conditions 11. 66. otoplasty 11. 67. barotrauma 11. 68. iridectomy 11. 69. hemianopia 11. 70. fluorescein

Chapter 11 Answers Clinical Conditions 11. 71. periorbital 11. 72. nyctalopia 11. 73. tinnitus 11. 74. pterygium 11. 75. conjunctivitis © 2009 Delmar, Cengage Learning Which Is the Correct Medical Term? 11. 76. papilledema 11. 77. synechia 11. 78. ametropia 11. 79. chalazion 11. 80. impacted cerumen

Chapter 11 Answers Challenge Word Building 11. 81. iridalgia 11. 82. blepharitis 11. 83. iridotomy 11. 84. retinopathy 11. 85. ophthalmology © 2009 Delmar, Cengage Learning 11. 86. blepharedema 11. 87. lacrimotomy 11. 88. labyrinthectomy 11. 89. iridopathy 11. 90. retinitis

Chapter 11 Answers Labeling Exercises 11. 91. cornea 11. 92. chamber 11. 93. lens 11. 94. iris 11. 95. fovea © 2009 Delmar, Cengage Learning 11. 96. auricle 11. 97. auditory 11. 98. tympanic 11. 99. eustachian 11. 100. cochlea