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Reading Guide 2 Ch. 10 Somatic and Special Senses Name_____________________________________________
10.7 Sense of Hearing page 256
1. Define or describe the following terms: auricle, external acoustic meatus, eardrum, auditory ossicles, oval window,
auditory tube.
TERM
DEFINITION
2. Label the diagram using page 257
3. Page 258 Blue box. How can an infection of the throat have an affect on the ear?
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4. Why is it important not to pinch your nose while blowing your nose?
5. Page 258 Describe the parts that make up the labyrinths?
6. Label the picture using pages 258-259.
7. Page 260 Explain the organ of Corti and what it does.
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8. What role do hair cells play in hearing?
10.8 Sense of equilibrium Page 261
9. Explain static and dynamic equilibrium
10. Blue box Explain motion sickness.
Page 262 Visual Accessory Organs
1. List the four layers of the eyelid.
2.
Explain what the conjunctiva and lacrimal gland do for the eye.
3.
What do the extrinsic muscles move?
4.
Label the following diagrams
using pages 264-265.
Middle Layer
Blue box: What is the most common cause for blindness and how does it occur?
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5.
Page 266 The middle layer of the eye includes the choroid coat, ciliary body, and iris. Explain the function for each
of these parts including melanin in the choroid coat.
6.
Label the following using the diagrams on page 266 and 267
7.
When the ciliary muscle fibers are relaxed and the suspensory ligament are taut the lens will thin allowing for you to
focus on________________________________.
8.
If the ciliary muscle fibers are contracted and the suspensory ligaments are relaxed the lens thickens allowing you to
focus on objects _____________________________.
9.
What secretes aqueous humor and where does it go and what does it do?
10. What is responsible for the constriction and contraction of the pupil?
11. Blue box: Explain cataracts
Page 268
Inner Layer of Eye
12. Explain retina, fovea centralis, optic disc, and vitreous humor.
13. Explain glaucoma. How it occurs and the outcome.
14. Compare and contrast the rods and cones using the diagram below.
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Page 269
15. What is vitreous humor and where is it found?
16. Blue box What is the cause for floaters?
17. Explain refraction.
18. Where are rods and cones found? What do they allow us to see? State how many there are for each group.
19. Page 270 Blue Box What is the cause for night blindness?
20. Page 271 What determines the color the brain perceives?
(a)
(b)
(c)