Compare the functioning of alveoli in the lungs and nephrons in the kidney with respect to their structure and functioning
Alveoli:
The structural and functional unit of the lung is an alveolus and is found in the respiratory system.
Nephrons:
The structural and functional unit of the kidney is a nephron and is found in the excretory system.
Alveoli | Nephrons |
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2. These are tiny sac-like structures. | 2. It consists of glomerulus and tubules. |
3. They perform the function of gaseous exchange. | 3. It facilitates blood filtering and urine output and the glomerular filtrate travels through them. |
4. The structures resemble air sacs in appearance. | 4. They resemble tubes. |
5. They have a grape-like appearance. | 5. They have a long, thin tube-like appearance. |
6. They transfer the blood to the pulmonary veins. | 6. They transfer the blood to the renal veins. |
7. There are about 480 million alveoli in the lungs. | 7. In the kidneys, there are about 1.5 million nephrons. |