Answer:
Alveoli
Nephron
1. Its structure is that of a pouch-like
air sac.
2. The walls of alveoli are very thin.
3. Alveoli are surrounded by the thin
blood capillaries.
4. The presence of millions of alveoli in
the lungs provides a very large surface area for the exchange of gases
between blood and inhaled air.
1. They are elongated tubules.
2. Each nephron has two components?
Bowman's capsule and tubules.
3. Blood capillaries form two patches
glomerulus and peritubular capillaries.
4. The function of tubular part of nephron
is to allow the selective reabsorption of the useful substances into the
blood capillaries.
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