The document discusses the respiratory system, including external respiration which is the gas exchange between the body and environment, and internal respiration which is the gas exchange between blood and cells. It notes that water breathing occurs through gills in fish and amphibians, while air breathing occurs through lungs. It also mentions cutaneous respiration in amphibians and describes the key parts of gills and lungs.
The document discusses the respiratory system, including external respiration which is the gas exchange between the body and environment, and internal respiration which is the gas exchange between blood and cells. It notes that water breathing occurs through gills in fish and amphibians, while air breathing occurs through lungs. It also mentions cutaneous respiration in amphibians and describes the key parts of gills and lungs.
2. ULOGA KOŽE
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ŠTITI TELO
SPREČAVA GUBLJENJE TELESNE TEČNOSTI
SPREČAVA ULAZAK MIKROORGANIZAMA
OSLOBAĐA TELO OD ŠTETNIH MATERIJA-žlezde
REGULIŠE TEMPERATURU TELA
STVARANJE VITAMINA D-razvoj kostiju i zuba
PRIMA DRAŽI-receptori