Which of the following organs, other than kidneys, also help in the elimination of excretory wastes ?
`{:(a.,"Lungs",b.,"Liver"),(c.,"Skin",d.,"Sebaceous glands"):}`

Options

A. a only
B. a and b
C. a, b and c
D. a, b, c and d

Answer

To answer the question about which organs, other than the kidneys, help in the elimination of excretory wastes, we will analyze each option provided:

1. **Lungs**:
- The lungs are primarily responsible for the exchange of gases. They excrete carbon dioxide (CO2), which is a waste product of cellular respiration. Additionally, they can also help in the elimination of certain volatile substances and some water vapor through respiration.
- **Conclusion**: Lungs are involved in excretion.

2. **Liver**:
- The liver plays a crucial role in metabolism and detoxification. It processes various substances and excretes waste products such as urea, which is formed from the breakdown of proteins. The liver also produces bile, which helps in the excretion of bilirubin and other waste products.
- **Conclusion**: Liver is involved in excretion.

3. **Skin**:
- The skin is involved in the excretion of sweat, which contains water, salts, and small amounts of urea. This process helps in regulating body temperature and removing certain waste products from the body.
- **Conclusion**: Skin is involved in excretion.

4. **Sebaceous Glands**:
- Sebaceous glands secrete sebum, an oily substance that helps to protect and moisturize the skin. While sebum is not a waste product in the same way as urea or CO2, it can be considered a form of excretion as it is released from the body.
- **Conclusion**: Sebaceous glands are involved in excretion.

**Final Answer**: All four organs (Lungs, Liver, Skin, and Sebaceous glands) help in the elimination of excretory wastes.