1. The Structure andFunctions of Ear.PREPARED BY: JAIDEE V.CAPUNGAS

2. Review 3. What are the parts of the eye? IrisPupilLensRetinaCornea andOptic nerve 4. Why do we need to care our eyes?We need to care our eyes in order to see our beautifulsurrounding 5. Motivation 6. Close you eyes and listen the sound around usWhat did you hear? 7. EarThe ears are necessary for hearing and for theprocess of converting sound intoelectrochemical information that the brain canuse to code the information. There are severalparts to the ears that allow for the sound to beheard. 8. Functions of EarThe two main functions of ear are:assist with our balance, andhear the sounds around us. 9. Structure EarThe ear consists of three areas:outer ear;middle ear, andinner ear. 10. Outer earThe outer ear consists of the pinna, thepart you can easily see and feel, and theear canal. The pinna helps to gather thesound waves around us. These soundwaves travel down the ear canal wherethey strike the ear drum. The ear drumseparates the outer and middle ear. 11. Middle earWhen sound waves strike the ear drum they cause it tovibrate, which in turn causes the three small bones inthe middle ear to move. These three small bones arecollectively called the ossicles or easily known as themiddle ear bones. The ossicles consist of the:malleus (hammer);incus (anvil), andstapes (stirrup).The stirrup is connected to a tiny membrane on theinner ear called the oval window. 12. Inner earThe oval window forms the entrance to theinner ear or cochlea. The cochlea is coiledand filled with fluid. If we magnify a sectionof the cochlea, we can see that the innercochlea is lined with tiny hair cells. 13. RememberSound waves are captured by outer ear pass through theear canal of the middle ear. There they reach and causes theeardrum and the three bones to vibrate. The vibrations are pickedup by the auditory nerves in inner ear, which relay the message tothe brain. The brain interprets the message or the sound that wehear. 14. Drills 15. Identify the parts of Ear1.4.5.2.3. 16. Answer 17. Generalization 18. What is Ear?The ears are necessary for hearing and for theprocess of converting sound intoelectrochemical information that the brain canuse to code the information. 19. Name the structure of EarStructure of the earThe ear consists of three areas:outer ear;middle ear, andinner ear. 20. What are the functions of ear?Functions of the EarThe two main functions of the ear are:assist with our balance, andhear the sounds around us. 21. What are the functions of ear?Functions of the EarThe two main functions of the ear are:assist with our balance, andhear the sounds around us. 22. Why do we need to care our ear?We need to protect and care our ear in order forus to hear the sound around us. 23. Fill in the Blanks.Write the correct answer in the space provided. Choose the answer in thebox.Outer ear, eardrum, Auditory nerves,Middle ear, Ear canal, pinna,Inner ear, Brain, three bonesSound waves are captured by the ________, and pass throughthe ear canal.The ______and _____ at the middle ear vibrates. The vibrations aresensed by the_______of the inner ear. They relay the message of the _____where themessage is interpreted. 24. Draw at least five (5) objects that candamage our ear.