Anatomy of the Ear and Mechanoreceptors

The outer ear has two parts: the pinna and the ______.

The structure attached to the sides of the head is called the ______.

Sound waves are passed along the auditory canal to the ______ ear.

The outer ear serves two ______.

The outer ear is comprised of the pinna and the auditory ______.

The auditory canal contains wax which prevents dust, dirt, and over-inquisitive ______ from reaching the middle ear.

The auditory canal acts as a barrier to protect the sensitive ______ from damage.

The protective wax in the auditory canal plays an important role in keeping the ear free from ______.

The wax in the auditory canal helps prevent ______ from reaching the middle ear.

The function of the auditory canal includes protecting the middle ear from sensitive elements and ______.

The outer ear consists of two parts: the pinna and the auditory canal.
The pinna is the visible part of the ear attached to the sides of the head.
The auditory canal is a passage that transmits sound waves to the middle ear.
The outer ear serves as a protective barrier for the middle ear.
The auditory canal contains earwax to prevent dust, dirt, and insects from reaching the middle ear.

The inner ear contains the cochlea, where sound waves are transformed into electrical signals.
Inside the cochlea are delicate hair cells (cilia) that bend due to vibrations in the cochlear fluid.
This bending motion causes the release of a chemical transmitter, generating impulses in the auditory nerve.

Mechanoreceptors provide feedback during physical interactions with objects.
For example, when lifting a glass of water, mechanoreceptors provide information about the weight and pressure.
These receptors respond faster with increased pressure.
However, sustained pressure leads to desensitization of the receptors.
Slowly adapting mechanoreceptors continue to respond to constant pressure.