Answers

1. Label the different parts of the ear.

2. Label the different parts of the inner ear.

Waugh and Grant: Ross & Wilson Anatomy and Physiology in Health and Illness 13e © Elsevier

Chapter 8: The special senses

3. Label the different parts of the cross section of a cochlea.

4. How many openings are there into the middle ear?

Four

5. Which of the following is not a part of the bony labyrinth?

Malleus

6. The organ of Corti is located in the: _____.

cochlear duct

7. Sound waves are transmitted across the middle ear in the following order: _____.

Tympanic membrane, hammer, anvil, stirrup, oval window

8. Which of the following structures is not a component of the external ear?

Auditory (Eustachian) tube

9. The major function of the utricle and saccule in the vestibule is: _____.

detecting the position of the head

Waugh and Grant: Ross & Wilson Anatomy and Physiology in Health and Illness 13e © Elsevier

10. Which of the following structures is concerned with hearing?

Cochlear duct

11. Which structure is not inside the vestibule of the inner ear?

Cochlear duct

12. Label the different parts of the optic nerves and their pathways.

13. Light waves travel at the speed of: _____.

300 000 kilometres per second

14. Light waves of which colour have the shortest wavelength?

Violet

Waugh and Grant: Ross & Wilson Anatomy and Physiology in Health and Illness 13e © Elsevier

15. When light waves pass from a medium of one density to another they bend. This process is called: _____.

refraction

16. Which of the following structures causes the most significant bending of light waves?

Lens

17. Label the different components of the electromagnetic spectrum.

18. Label the lens and its related structures.

Waugh and Grant: Ross & Wilson Anatomy and Physiology in Health and Illness 13e © Elsevier

19. Label the different parts of the lacrimal apparatus.

20. In bright light the amount of light entering the eye is controlled by: _____.

constriction of the pupils

21. Blood vessels are found in which of the following parts of the eye?

Choroid

22. The part of the eye containing nervous tissue is the: _____.

retina

23. Which of the following must happen for near vision to occur?

Increased curvature of the lens

24. Label the different parts of the olfactory apparatus.

Waugh and Grant: Ross & Wilson Anatomy and Physiology in Health and Illness 13e © Elsevier