Table of Contents
- 1 What passes vibrations to nerves in the inner ear?
- 2 Where are the tiny little hairs that vibrate located in the inner ear?
- 3 What is the name of the nerve that connects to the semicircular canals?
- 4 What are the tiny hairs in your ears called?
- 5 How does the inner ear respond to sound?
- 6 What makes the bones in the ear vibrate?
What passes vibrations to nerves in the inner ear?
The eardrum vibrates. The vibrations are then passed to 3 tiny bones in the middle ear called the ossicles. The ossicles amplify the sound. They send the sound waves to the inner ear and into the fluid-filled hearing organ (cochlea).
Where are the tiny little hairs that vibrate located in the inner ear?
The cochlea is filled with liquid. It contains a smaller, sensitive structure called the organ of Corti. This acts like the body’s “microphone.” It contains 4 rows of tiny hairs that pick up the vibrations from the sound waves.
What is a ear?
The ear is the organ of hearing and balance. The parts of the ear include: External or outer ear, consisting of: Pinna or auricle.
What is nerve that is responsible for sending sound vibrations to brain?
The cochlear nerve, which is attached to the cochlea and sends sound information to the brain, and the vestibular nerve, which carries balance information from the semicircular canals to the brain, together make up the vestibulocochlear (say: vess-tib-yuh-lo-KOH-klee-er) nerve.
What is the name of the nerve that connects to the semicircular canals?
vestibular nerve
vestibular nerve: One of the two branches of the vestibulocochlear nerve (the cochlear nerve being the other). It connects to the semicircular canals via the vestibular ganglion and receives positional information.
What are the tiny hairs in your ears called?
Hearing is an amazing process, and it’s all thanks to the 15,000 or so tiny hair cells inside our cochlea—the small, snail-shaped organ for hearing in the inner ear. The cells are called hair cells because tiny bundles of stereocilia—which look like hairs under a microscope—sit on top of each hair cell.
Are the hairs in your ears important?
The hair just inside your ear works with earwax to keep dirt and debris away from your eardrum. Farther inside your ear, tiny hairs help you hear and keep your balance.
What converts sound vibrations into nerve impulses?
The cochlea converts sound waves into chemical electric nerve impulses that travel to the brain via the movement of tiny hair cells.
How does the inner ear respond to sound?
Tiny hair cells (yellow) inside the cochlea pick up vibrations in the fluid surrounding them. Different hair cells respond to different sounds and pass on the pattern of the vibrations as nerve messages. Your inner ear contains three fluid-filled loops called semicircular canals. These play an important role in balance.
What makes the bones in the ear vibrate?
The sound makes the ear drum vibrate and set off movements in three tiny bones called ossicles. The moving bones cause vibrations in the liquid deep inside your inner ear. Tiny hairs in the inner ear pick up these vibrations in the liquid around them.
How are sound waves collected in the ear?
Your ears pick up the waves and transmit the sound to your brain. What we call the ear is really just the part we can see. Sounds are collected here, and funneled inward. Sounds travel from the outer ear down a tube until they reach the ear drum in the middle ear.