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Biologie Nectar vwo 5 samenvatting hoofdstuk 14

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Biologie Nectar Vwo - Samenvatting Hoofdstuk 14: Zintuigen * Paragraaf 1: Werking van zintuigen & Evenwicht – Zintuigcellen reageren op adequate prikkels. Het evenwichtsorgaan gebruikt het vestibulum met maculae voor rechte bewegingen en de halfcirkelvormige kanalen met cupulae voor draaiingen. * Paragraaf 2: Gehoor en het slakkenhuis – Trillingen gaan via gehoorbeentjes naar vloeistoffen in het slakkenhuis. Haarcellen in het orgaan van Corti zetten dit om in impulsen voor toonhoogte (Hertz) en geluidsterkte (decibel). * Paragraaf 3: Oog en accommodatie – De pupilreflex regelt lichtinval. Accommoderen past de lens aan voor scherp zien dichtbij of ver weg, waarbij afwijkingen met brillenglazen worden gecorrigeerd. * Paragraaf 4: Netvlies en lichtverwerking – Het netvlies bevat staafjes (voor licht/donker en schemering via rhodopsine) en kegeltjes (voor kleuren en scherpte in de gele vlek). * Paragraaf 5: Interne zintuigen en spiercontrole – Drukreceptoren en chemoreceptoren regelen bloeddruk en ademhaling. Spierspoeltjes meten spierlengte en Golgi-peeslichaampjes beschermen tegen overbelasting.


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Level
School year
5
Uploaded on
August 25, 2026
Number of pages
10
Written in
2025/2026
Type
Summary
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