Homeostasis
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1.It is important that humans maintain a constant internal environment (homeostasis) 2.Humans respond to changes in external temperature in different ways Homeostasis Homeostasis
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Transcript of Homeostasis
1. It is important that humans maintain a constant internal environment (homeostasis)
2. Humans respond to changes in external temperature in different ways
HomeostasisHomeostasisHomeostasisHomeostasis
Homeostasis
HomeostasisHomeostasisHomeostasisHomeostasis
Homeostasis
HomeostasisHomeostasisHomeostasisHomeostasis
Homeostasis
Functions of the skinFunctions of the skinFunctions of the skinFunctions of the skin
Functions of the skin
Structure of the skinStructure of the skinStructure of the skinStructure of the skin
Functions of the skin
Hot or cold?Hot or cold?Hot or cold?Hot or cold?
Hot or cold?
1. Water, and small molecules such as urea, salt and sugar, are filtered from the blood by the kidneys
2. Selective reabsorption of sugar, salt and some water occurs
3. Dialysis can be used in cases of kidney failure
4. Organs can be replaced by surgical transplants
5. Transplants may be rejected by the immune system
KidneysKidneysKidneysKidneys
Kidneys
KidneysKidneysKidneysKidneys
Kidneys
KidneysKidneysKidneysKidneys
Kidneys
The NephronThe NephronThe NephronThe Nephron
The Nephron
The NephronThe NephronThe NephronThe Nephron
The Nephron
KidneysKidneysKidneysKidneys
Kidneys
ADH – too little water in bloodADH – too little water in bloodADH – too little water in bloodADH – too little water in blood
ADH
ADH – too much water in bloodADH – too much water in bloodADH – too much water in bloodADH – too much water in blood
ADH
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