Ever you see sweat after you do sport?
Or ever you see the vapor when you breath?
That's all is the result of excreation system
Excretion system has three part :
1. Excretion
2. Secretion
3. Defecation
And excretion system has 4(usual version)/5 organ (in any version) :
1. Ren consist of cortex,medulla, and pelvis.In a nephron,consist of glomerulus(in cortex part) , proximal and distal tubule,henle curve, and collecting tubule (in medulla part)
2. Hepar consist of two lobe,is place for changed the erythrochyte
3. Lung consist of two part,place for excrete H2O and CO2
4. Skin consist of epidermis and dermis
5*. Colon is place of defecating
Excretion is part to excrete liquid waste.That usually in organ 1,3, and 4
Secretion is part to secrete any need sustace.It happens in hepar
Defecation is part to excrete solid waste.That usually happen in colon
What did ren excrete?It excrete urine.Urine contains water,amonia,methane,and salt mineral.
The sugar and amino acid reabsrbed in proximal and distal tubule,also in henle curve. And the protein is filtered in glomerulus.
If people has sugar in the urine,that people got diabetes mellitus
