1. Special Senses: The Eyes and Ears
Chapter 11
Special Senses: The Eyes and Ears

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

3. Eyes (and Vision) Primary Function Related Combining Forms
Receptor organs for the sense of sight.
Related Combining Forms
opt/i, opt/o, optic/o
ophthalm/o

4. Adnexa of the Eye Primary Functions
Accessory structures that provide external protection and allow the eyes to move.

5. Major Structures of the Adnexa of the Eye

6. Lacrimal Apparatus Primary Functions Related Combining Forms
Produces, stores, and removes tears.
Related Combining Forms
dacryocyst/o
lacrim/o

7. Structures of the Eyeball

8. Iris Primary Function Related Combining Forms
Controls the amount of light entering the eye.
Related Combining Forms
ir/i, ir/o
irid/o
irit/o

9. Lens Primary Function Related Combining Forms
Focuses rays of light on the retina.
Related Combining Forms
phac/o
phak/o

10. Retina Primary Functions Related Combining Form
Converts light images into electrical impulses and transmits them to the brain.
Related Combining Form
retin/o

11. Ears (Hearing and Sound)
Primary Functions
Receptor organs for the sense of hearing.
Help to maintain balance.

12. Ears (Hearing and Sound)
Related Combining Forms
acous/o, acoust/o
audi/o, audit/o
ot/o

13. Structures of the Ear

14. Outer Ear Primary Function Related Combining Form
Transmits sound waves to the middle ear.
Related Combining Form
pinn/i

15. Middle Ear Primary Function Related Combining Forms
Transmits sound waves to the inner ear.
Related Combining Forms
myring/o
tympan/o

16. Inner Ear Primary Functions Related Combining Form
Receives sound vibrations and transmits them to the brain.
Related Combining Form
labyrinth/o