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Skynjun k.8

Líffræði

QuestionAnswer
Skynfrumur breyta áreiti í _____. Taugaboð
Hvernig ummynda skynfrumur áreiti? Þær kalla fram boðspennu í skyntaugung
Hvað er aðhæfing? Þegar er stöðugt áreiti og einstaklingur hættir að taka eftir því, því taugakerfið venst áreitinu
Hver eru hin 5 skilningarvit mannsins? Heyrn, sjón, ilman, smekk og tilfinning
Hvað er það í auganu sem skerpir myndina sem við sjáum? Linsa
Hvað í auganu er stillanlegt og temprar ljósmagnið sem fer inn í augað? Ljósop
Hvað eru margir vöðvar sem stýra auganu? 6
Þegar dregur úr sveigjanleika augasteinsins með aldrinum kallast það ________. Ellifjarsýni
Ef augun eru of löng þá er manneskja: Nærsýn
Ef augun eru of stutt er manneskja: Fjarsýn
Ef of mikið A-vítamín er og stafir virka ekki, heldur bara keilur er manneskja: Náttblind
Hvað er ljósrænt efni sem bindur ljós? Rodopsín
Úr hverju er Rodopsin búið til? Opsín og retínal(A-vít)
Hvar eru ilmskynfæri mannsins? Í slímhimnu efst í nefholi
Ilmlaukar senda boð til _________ sem hefur veruleg áhrif á hvatir og geðhrif Randkerfis
Created by: karitas03
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