1 / 16

Ear Notes/ SoUND

Ear Notes/ SoUND. Sense Organs. The sense organs gather information (light, sound, heat, and pressure) from the environment. Eyes, ears, nose, tongue, and skin are examples. Hearing. When a sound is made, the air around the sound vibrates.

zarola
Download Presentation

Ear Notes/ SoUND

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Ear Notes/SoUND

  2. Sense Organs • The sense organs gather information (light, sound, heat, and pressure) from the environment. • Eyes, ears, nose, tongue, and skin are examples

  3. Hearing • When a sound is made, the air around the sound vibrates. • Hearing starts when some of the sound waves go into the ear.

  4. Sound Waves • Sound is a series of waves that move through matter. • Sound does not travel through a vacuum.

  5. Sound • Sound moves at approximately 344 meters per second (770 miles per hour) at room temperature • When a sound wave hits an object, it causes the object to vibrate. This leads to you to be able to detect sound.

  6. Sound Waves • Compression/Longitudinal waves: Sound travels in waves through the atmosphere. • Sound can travel in transverse waves through solids.

  7. 3 Main Parts of the Ear • Outer Ear • Middle Ear • Inner Ear

  8. Sound waves traveling through the ear

  9. Outer Ear • The part that you can see. • Directs sound into the ear

  10. Middle Ear • Ear canal: the tube between the outside of the ear and the ear drum. • Ear drum: Vibrates when sound waves hit it.

  11. Middle Ear Bones • The three smallest bones in the body are in the middle ear. • Hammer • Anvil • Stirrup • Vibrations travel from ear drum -> Hammer -> Anvil -> Stirrup -> Inner ear

  12. Middle Ear Hammer Anvil Stirrup Ear Drum

  13. Inner Ear • Cochlea: fluid-filled organ in inner ear • Vibrations makes waves, which send message to nerve • Auditory nerve: carries the hearing information to the brain and the brain tells us what we heard. Cochlea

  14. The Ear & Balance Semi-circular Canals • Semicircular Canals: fluid-filled canals in your ear that contain hair cells • As you move, the hair moves from the liquid and sends messages to your brain about how you are moving.

  15. Hearing Loss • Presbycusis: lose hearing as you age; runs in families; also caused due to extended exposure to loud noises • Sudden Sensorineural Hearing Loss (SSHL): rapid loss of hearing; usually only one ear; more than 100 possible causes (disease, trauma, abnormal tissue growth, etc.) • Noise-Induced Hearing Loss: caused by loud sounds, can be sudden (ex: explosion) or over time (ex: wood- shop)

  16. Hearing Loss • Pendred syndrome: genetic disorder where early hearing loss occurs in children (by age 3) • Meniere’s disease: a disorder of the inner ear that causes severe dizziness, ringing in the ears, hearing loss, and a feeling of fullness or congestion in the ear; usually affects only one ear; caused by build-up of fluid in the inner ear

More Related