1. 3.03 Remember the structures of the sensory system
Ears
3.03 Remember the structures of the sensory system

2. 3.03 Remember the structures of the sensory system
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

3. 3.03 Remember the structures of the sensory system
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

4. Outer Ear Pinna-(auricle) outer ear, collects sound waves.
External Auditory Canal – ear canal
Cerumen- earwax, protects the ear
Tympanic membrane- ear drum, separates outer and middle ear.

5. 3.03 Remember the structures of the sensory system
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

6. Middle Ear Cavity in temporal lobe.
Connects with pharynx by Eustachian Tube which equalizes pressure in the middle ear with outside atmosphere.
Bones in middle ear that transmit sound waves from ear drum to inner ear
Malleus (hammer)
Incus (anvil)
3. Stapes (stirrup)

7. 3.03 Remember the structures of the sensory system
Structures of the ears
Inner ear
Cochlea
Perilymph fluid
Semicircular canals
Endolymph fluid
Vestibule chamber
3.03 Remember the structures of the sensory system

8. Inner Ear Contains spiral shaped organ of hearing – the cochlea
Inner ear also the labyrinth
Contains spiral shaped organ of hearing – the cochlea
The cochlea contains a membranous tube, the cochlear duct- which is filled with fluid that vibrates when sound waves are transmitted by the stapes.
Organ of Corti- delicate hair-like cells that pick up vibrations of fluid and transmit them as a sensory impulse along the auditory nerve to the brain.
Semicircular Canals- three structures in the inner ear, contain liquid that is set in motion by head and body movements-impulses sent to cerebellum to help maintain body balance (equilibrium).

9. Pathway of Hearing

10. Sound
A sound byte is a short bit of sound or clip from a longer recording.
The doctor you would go to if you has problems with ears, nose and throat would be a otolaryngologist.
The instrument used for looking in your ears is a otoscope.

11. 3.03 Remember the structures of the sensory system
Ears
Name the structures…
Review
3.03 Remember the structures of the sensory system

12. 3.03 Remember the structures of the sensory system
Nose
3.03 Remember the structures of the sensory system

13. 3.03 Remember the structures of the sensory system
Structures of the nose
Nares
Nasal cilia
Nasal septum
Olfactory receptors
Turbinates
3.03 Remember the structures of the sensory system

14. 3.03 Remember the structures of the sensory system
Structures of the nose
3.03 Remember the structures of the sensory system

15. 3.03 Remember the structures of the sensory system
Structures of the nose
Olfactory area
3.03 Remember the structures of the sensory system

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

17. 3.03 Remember the structures of the sensory system
Tongue
3.03 Remember the structures of the sensory system

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

19. 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

20. 3.03 Remember the structures of the sensory system
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

21. 3.03 Remember the structures of the sensory system
Skin
3.03 Remember the structures of the sensory system

22. 3.03 Remember the structures of the sensory system
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

23. 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

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

26. Questions for BM Three Write a one page summary on the power point.
Complete the bubble map in color and color the pictures.