Lactic acid is excreted by

Options

A. sebaceous glands
B. sudoriferous glands
C. liver
D. kidneys

Answer

**Step-by-Step Solution:**

1. **Understanding Lactic Acid**: Lactic acid is a byproduct of anaerobic respiration, which occurs when cells produce energy without oxygen. This typically happens during intense exercise when oxygen levels are low.

2. **Identifying Excretion Mechanisms**: The body has various mechanisms to excrete waste products, including sweat glands, kidneys, and the liver. Each of these organs plays a different role in the excretion of metabolic byproducts.

3. **Evaluating the Options**:
- **Option A: Sebaceous Glands**: These glands are primarily responsible for secreting sebum (oil) to lubricate the skin and do not play a role in lactic acid excretion.
- **Option B: Sodium Ferrous Glands**: These are commonly referred to as sweat glands. They help in the excretion of water, salts, and also lactic acid. This option is correct as these glands can excrete lactic acid through sweat.
- **Option C: Liver**: The liver is involved in metabolizing lactic acid but does not excrete it directly. Instead, it converts lactic acid back into glucose through gluconeogenesis.
- **Option D: Kidneys**: The kidneys filter blood and excrete waste products, but they primarily deal with urea and other nitrogenous wastes rather than lactic acid.

4. **Conclusion**: Based on the evaluation of the options, the correct answer is **Option B: Sodium Ferrous Glands**, as these glands are responsible for the excretion of lactic acid through sweat.

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