Page 129 - DK Children's Encyclopedia

Hearing SEE ALSO

▸ ▸ Brain p.45
▸ ▸ Communication
Hearing happens when our ears receive a sound. Sound is a p.69
vibration that travels through the air and into our ears. The ▸ ▸ Human body
sound travels into the hidden parts of the ear and our brain p.130

identifies what we hear. ▸ ▸ Music pp.176–177
▸ ▸ Radio p.203

▸ ▸ Sound p.235

The ear
The ear is much bigger than it looks
The ears are from the outside. The inner ear and
shaped like cups outer ear are hidden inside our heads. The smallest
to catch sound. bone in your ear
Inside the ear is the size of a
grain of rice.

2. Ear drum 3. Bones
The ear drum is Three tiny bones 5. Nerve
a tiny disk with called the ossicles This nerve sends
skin stretched pass the vibrations sounds to the brain
over it. It picks up along. as electrical signals.
Outer ear
sound vibrations.

Inner ear

1. Ear canal Middle ear
Sound vibrates
through the air
and into the ear.
The curled
part of the
inner ear is
called the
4. Inner ear cochlear.
The inner ear
contains liquid-filled
tubes. The vibrations
Brilliant brain move through the
The brain makes sense liquid and tiny hair
cells in the cochlear
of the signals from the detect the sounds.
ear. For example, if
someone is talking to us,
the brain works out what
the meaning of the
sounds are.

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