1. The Sensory Systems 7
Lesson 7.1: The Eye Lesson 7.2: The Ear Lesson 7.3: Smell and Taste

2. Chapter 7: The Sensory Systems
Lesson 7.1
The Eye

3. The Eye Anatomy of the eye Vision
External
Internal
Vision
Injuries, diseases, and disorders of the eye

4. External Structures of the Eye
Ciliary glands
Conjunctiva
Lacrimal glands

5. Extrinsic Muscles

6. Internal Structures of the Eye
Humors
Aqueous - front
Vitreous - behind
Tissue layers
Sclera
Cornea
Choroid
Pupil - controls amount of light
Iris - color of the eye
Retina
Rods and cones

7. Internal Structures of the Eye

8. Vision
Retina
Optic nerve
Brain
Optic tracts
Occipital lobe

9. Vision Disorders

10. Eye Diseases Conjunctivitis Cataracts Diabetic retinopathy
pink eye
Cataracts
Diabetic retinopathy
Vitreous floaters

11. Chapter 7: The Sensory Systems
Lesson 7.2
The Ear

12. The Ear Anatomy of the ear Functions of the ear
Disorders and infections of the ear

13. Anatomy of the Ear External Ear Middle Ear Internal Ear Auricle
Auditory canal
Tympanic membrane
Middle Ear
Ossicles
Hammer, anvil, and stirrup
Eustachian tube
Internal Ear
Cochlea
Vestibule
Semicircular canals

14. Anatomy of the Ear

15. Functions of the Ear Hearing Equilibrium Hair cells Cochlear duct
Semicircular canal

16. Disorders and Infections of the Ear
Deafness
Tinnitus
External otitis (swimmer’s ear)
Otitis media (middle ear infection)
Labyrinthitis (inner ear infection)

17. Chapter 7: The Sensory Systems
Lesson 7.3
Smell and Taste

18. Smell and Taste Olfactory sense (sense of smell)
Injuries and disease of the nose
Gustatory sense (sense of taste)
Disorders of the tongue

19. Olfactory Sense Olfactory region Olfactory receptor cells
Olfactory hairs
Olfactory nerve
Olfactory bulb

20. Olfactory Sense

21. Injuries and Disorders of the Nose
Rhinitis
Inflammation of nasal membrane
Septum problems
Deviated septum

22. Gustatory Sense Taste buds Papillae Gustatory cells Gustatory hairs
Taste pores
Tastants

23. Disorders of the Tongue
Infection
Severely bitten tongue during a traumatic accident
Tongue piercing
Injury