The skin serves as an excellent excretory organ
but only under the stimulus of a vital circulation and heat to sweat out the toxins.
Although glomerular filtration begins at approximately the 6th week of fetal life, kidney function is not necessary for normal intrauterine homeostasis because the placenta serves as the major fetal excretory organ
. After birth, the GFR increases until renal growth ceases (by age ~18-20 yr in most people).
From the time the skin becomes tough the baby passes urine, nose, throat and lung secretions into the fluid, so it takes on the role of an excretory organ
There is no excretory organ
for iron, so the only mechanism for its clearance is through epithelial sloughing or bleeding.
It functions as hematopoetic, phagocytic, endocrine and excretory organ
and has distinct head and trunk region.
The authors of the study, Ruben Meerman and Andrew Brown, said: "These results show that the lungs are the primary excretory organ
for weight loss.
skin is often called the second liver because it is a huge excretory organ
In other words, hair serves as a minor excretory organ
for the toxic elements.
This vessel, which corresponds to the left anterior aorta (9) in the juvenile, is associated with Hatschek's nephridium, the first excretory organ
to appear in the ontogeny of amphioxus.
Yet Henderson argues that the skin is a major excretory organ
, eliminating a significant amount of urea and other waste products.
From the time the skin becomes tough, the baby passes urine, nose, throat and lung secretions into the fluid so it takes on the role of an excretory organ