Ossicles

High school (ages 12+)
Human Body

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/ossicles

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the scientific name?Auditory ossicles
2. What is the components and nicknames?Malleus (hammer), Incus (anvil), and Stapes (stirrup)
3. What are the ossicles in my ear?The ossicles are three tiny bones—malleus, incus, and stapes—that help your ear hear by moving sound from the eardrum to the inner ear.
4. How do the ossicles make sound louder?They use two tricks: a pressure boost from the big eardrum to the small stapes footplate, and a lever system that makes the stapes move more than the eardrum does. Together, they amplify sound about 20 times.

Tympanic Membrane: The eardrum, a thin membrane that vibrates in response to sound waves.
Acoustic Impedance Mismatch: The difference in how easily sound travels through air versus fluid, requiring amplification for efficient transfer.
Exaptation: The evolutionary process where a structure originally adapted for one function becomes co-opted for a new function.
Otosclerosis: A condition characterized by abnormal bone growth in the middle ear that can impede the movement of the stapes.