Wednesday, July 29

Negative Feedback Mechanism


Bio Insight to Healthy Bio Students From a Sick Bio Student ;
Body temperature rises --> skin receptors detect these changes --> Information trnasmitted by neurons to hypothalamus (temperature regulatory centre) --> hypothalamus activates effectors --> blood vessels dilate to allow more blood flow near the body --> more heat is loss to external environment --> sweat glands produce more sweat --> body temperature lowered by evaporation --> SIHAT (:

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2 Comments:

Blogger Keev said...

ni, tengok ni.
saya mengkomen belog anda.
im a bit confused with that hypothalamus.
hippopotamus

2/8/09 1:49 PM  
Blogger Dahiyah A said...

HMPH, mcm tak ikhlass je. i oso donno what im writing. blegh

3/8/09 12:17 AM  

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