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The human eye

The eye is one of our most important sense organs. When stimulated by light, electric impulses are produced by its receptors.

Bioloogia

Keywords

silma, nägemine, värv nägemine, taju, kerge tajumine, meeleorgan, nägattu nägemisteravus, nägemisprobleem, valgus, õpilane, iiris, sklera, objektiiv, lacrimal näär, eesmine kamber, klaaskeha kamber, silmalaud, võrkkesta, koroidi, makula lutea, skotoom, tsiliaarne keha, silmanärv, varraste rakud, koonusrakud, valgust avastav elund, visuaalne väli, retseptor, Värvilisus, chiasm, refleks, õpilane kerge refleks, inimene, anatoomia, Bioloogia

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Kõrv ja kuulmine

Kuulmiselund muundab õhuvõnked närviimpulssideks, mida seejärel ajus töödeldakse.

Telescopes

This animation shows optical and radiotelescopes used in astronomical observation.

The sense organs

Organs that detect signals of the environment or of the body and transmit them to the brain as nerve impulses.

The reflection and refraction of light

A ray of light is reflected or refracted at the boundary of two mediums with different refractive indices.

Optical instruments

A wide variety of optical instruments are in use today, ranging from microscopes to telescopes.

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