Epidermis on optic nerve

Classified in Biology

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ECHO

An echo is produced when the sound reflected by an obstacle situated at a certain distance reaches the ear in such a way that both the initial sound ad the reflected sound can be distinguished.

REVERBERATION

When a sound is reflected at a distance of less than 17 m from where we are.

EYE

Sclera-Cornea-Iris-Pupil-Lens-Retina-Optic Nerve

HOW DOES THE EYE WORK?

Light enters the eye through the pupil

The lens focuses the image

The retina receives the image and transforms it into nerve signals

The optic nerve transmits the information to the brain

Our vision is binocular

EAR

Outer Ear:Pinna

Middle Ear:External auditory canal-Eardrum

Inner Ear:Hammer-Anvil-Stirrup-Ossicles-Semicircular Canals-Cochlea

HOW DOES THE EAR WORK?

The pinna captures the sounds and the outer ear canal transmits them to the interior of the ear

The eardrum vibrates when it receives the sounds

The bones of the inner ear transmit the vibration to the ossicles

There are sensitive cells in the ossicles

HEAT

Is a form of energy which can be transformed and transmited.

transfomed to kinetic energy or luminous energy.

TEMPERATURE

Is a physical magnitude that is related to the amount of heat that can be released or absorbed by body.

Solids which transmit heat well.Are conductors.And badly.Insulators

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