1. Special Senses Hearing and Equilibrium Hearing: a response to vibrating air molecules Equilibrium: the sense of motion, body orientation, and balance Upload 10.11 Hearing and Equilibrium notes

2. Structures of the Ear Word Bank: cochlea, eustachian tube, external auditory meatus, inner ear, labyrinth, middle ear, ossicles, outer ear, pinna, semicircular canals, tympanic membrane, vestibule, vestibulocochlear nerve outer ear pinna external auditory meatus tympanic membrane middle ear eustachian tube ossicles inner ear semicircular canals vestibule cochlea labyrinth vestibulocochlear nerve

3. Organ of hearing? Ear >Inner ear > Cochlea > Organ of Corti

4. Type of receptor? Mechanoreceptor

5. Nerve pathway?

6. Interpretation? Temporal lobe Summary video

7. Difficulty Hearing? Overactive ceruminous glands Unexpected visitor

8. Sense of Equilibrium Try it: Stand on one foot. Close your eyes and stand on one foot. What sense organs must we be using to balance? Eye Ear > Inner Ear > Vestibule and Semicircular Canals Receptors used? Mechanoreceptor Photoreceptor

9. Static Equilibrium (Position in Space) Hair cells in vestibule are stimulated by changes in space.

10. Dynamic Equilibrium (Perception of motion) -linear (driving forward) -angular (turning the corner) Movement causes hair cells in semicircular canal to bend.

11. Nerve pathways Nerves for sight, eye movement are important in the sense of equilibrium.

12. Interpretation Parietal lobe Cerebellum Spinal cord

13. Motion Sickness Motion Sickness is a contradiction of senses. Which senses? Watch video