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3.03 Remember the structures of the sensory system

Learn about the various structures of the sensory system, including the eyes, ears, nose, tongue, and skin. Discover the external and internal components of each sensory organ and their functions. Dive into fascinating trivia about these structures and expand your knowledge of the sensory system.

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3.03 Remember the structures of the sensory system

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  1. 3.03 Remember the structures of the sensory system

  2. Essential questions What are the structures of the sensory system? 3.03 Remember the structures of the sensory system

  3. The Senses • Eyes • Sight • Ears • Hearing • Nose • Smell • Tongue • Taste • Skin • Touch 3.03 Remember the structures of the sensory system

  4. Eyes 3.03 Remember the structures of the sensory system

  5. Structures of the eyes • External structures • Orbit • Eyelids • Eyelashes • Conjunctiva • Lacrimal apparatus • Extrinsic muscles 3.03 Remember the structures of the sensory system

  6. Structures of the eyes • External structures 3.03 Remember the structures of the sensory system

  7. Structures of eyes • Extrinsic muscles 3.03 Remember the structures of the sensory system

  8. Eyes • Internal structures 3.03 Remember the structures of the sensory system

  9. Eye Trivia • Which famous screen actress was noted for her stunning eyes? • Many people thought her irises were violet in color… What gives the iris color? 3.03 Remember the structures of the sensory system

  10. Structures of the eyes • Internal structures 3.03 Remember the structures of the sensory system

  11. Structures of the eyes • Rods and cones • Rods • Active in dim light • Do not perceive color • Cones • Active in bright light • Perceive color 3.03 Remember the structures of the sensory system

  12. Eyes Name the structures… • Review 3.03 Remember the structures of the sensory system

  13. Ears 3.03 Remember the structures of the sensory system

  14. Structures of the ears • External ear • Middle ear • Also known as the tympanic cavity • Inner ear • Also known as the labyrinth 3.03 Remember the structures of the sensory system

  15. Structures of the ears • External ear • Pinna or auricle • Auditory canal or external auditory meatus • Ceruminous glands • Tympanic membrane 3.03 Remember the structures of the sensory system

  16. Structures of the ears • Middle ear • Ossicles • Hammer or malleus • Anvil or incus • Stirrup or stapes • Eustachian tube 3.03 Remember the structures of the sensory system

  17. Structures of the ears • Inner ear • Cochlea • Perilymph fluid • Semicircular canals • Endolymph fluid • Vestibule chamber 3.03 Remember the structures of the sensory system

  18. Ears Name the structures… • Review 3.03 Remember the structures of the sensory system

  19. Nose 3.03 Remember the structures of the sensory system

  20. Structures of the nose • Nares • Nasal cilia • Nasal septum • Olfactory receptors • Turbinates 3.03 Remember the structures of the sensory system

  21. Structures of the nose 3.03 Remember the structures of the sensory system

  22. Structures of the nose • Olfactory area 3.03 Remember the structures of the sensory system

  23. Structures of the nose Discuss the structures of the nose in relation to the olfactory nerve. 3.03 Remember the structures of the sensory system

  24. Tongue 3.03 Remember the structures of the sensory system

  25. Structures of the tongue 3.03 Remember the structures of the sensory system

  26. Structures of the tongue • Taste receptors • Also known as gustatory buds or taste buds What type of tissue is the tongue made? 3.03 Remember the structures of the sensory system

  27. Trivia Tongue • Did you know… • Taste is the weakest of the five senses • We have almost 10,000 taste buds inside our mouths; even on the roofs of our mouths • Everyone’s tongue print is different similar to fingerprints 3.03 Remember the structures of the sensory system

  28. Skin 3.03 Remember the structures of the sensory system

  29. Structures of the skin • Epidermis layer • Dermis layer • Subcutaneous layer • Touch receptors • Tactile corpuscles located in the skin • Temperature sensors • Pain receptors 3.03 Remember the structures of the sensory system

  30. Structures of the sensory system Did you know….. • Our eyes are always the same size from birth, but our nose and ears never stop growing! 3.03 Remember the structures of the sensory system

  31. Essential questions What are the structures of the sensory system? The End 3.03 Remember the structures of the sensory system

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