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The Senses

The Senses. HB&H Chapter 7.3 Pages 204-211. 5 Senses. Vision Hearing Smell Taste Touch How do your senses work?. How Senses Work. Each of your sense organs turns information into impulses Impulses are sent along neurons to your brain. Sense of Sight. Sense Organ : Eyes

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The Senses

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  1. The Senses HB&H Chapter 7.3 Pages 204-211

  2. 5 Senses • Vision • Hearing • Smell • Taste • Touch • How do your senses work?

  3. How Senses Work • Each of your sense organs turns information into impulses • Impulses are sent along neurons to your brain.

  4. Sense of Sight Sense Organ:Eyes Stimulus:Light waves • Light first strikes your Cornea, clear tissue that covers the front of the eye • Light enters your eye through thePupil.

  5. Sense of Sight • The Irissurrounds the pupil and control its size and how much light enters the eye • The iris also gives eyes their color • Inside the pupil is the Lens, which focuses the light • Images in your eye are actually upside down and reversed.

  6. Senses of Sight • Finally, light strikes the Retina, a layer of cells at the back of the eye • The retina contains receptor cells called rods and cones • Rodsallow you to see shades of black, gray and white, and in dim light • Conessee colors and work well in bright light.

  7. This part of the eye covers and protects it.

  8. This part of the eye controls the amount of light that enters the eye.

  9. This layer of cells detects colors.

  10. What is Sound? • What is sound? • How do we make sounds?

  11. Sense of Hearing Sense Organ:Ears Stimulus:Sound waves • Sound is produced by vibrations • Vibrations create waves of moving particles.

  12. Sense of Hearing • Your ear acts like a funnel that catches sound wave vibrations • Inside your ear is the Eardrum, a membrane that is struck by sound • Small bones pass this on to the Cochlea.

  13. Senses of Smell & Taste Sense Organ:Nose & Tongue Stimulus:Chemicals • Work together to pick up 50 kinds of odors and 4 types of taste • Sweet, sour, salty and bitter

  14. Sense of Touch Sense Organ:Skin Stimulus:Pressure / Energy • Touch lets you identify if something is rough or smooth, pressure of an object, temperature, and pain

  15. What are your senses detecting?

  16. Which of these senses detects stimuli in the form of waves?

  17. Which of these senses detects chemical stimuli?

  18. What to Work On • Complete Section 7.3 Review • Answer Questions #1-4 on page 211 DUE: Friday, March 16th

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