Deficiency of oxygen affects most the

Options

A. Brain
B. Skin
C. Kidney
D. Intestine

Answer

**Step-by-Step Solution:**

1. **Understanding Oxygen Consumption in Organs:**
- The human body has various organs that utilize oxygen for metabolic processes. The amount of oxygen consumed by each organ can vary significantly.

2. **Identifying the Organ with Maximum Oxygen Consumption:**
- Among all the organs, the brain is known to consume a substantial amount of oxygen relative to its size. Although it constitutes only about 2.5% of the body weight, it accounts for approximately 20% of the total oxygen consumption.

3. **Recognizing the Impact of Oxygen Deficiency:**
- When there is a deficiency of oxygen (hypoxia), the organ that is most affected is the one that relies heavily on oxygen for its functions. Since the brain has the highest oxygen consumption, it is the most vulnerable to oxygen deficiency.

4. **Understanding the Consequences of Brain Hypoxia:**
- Brain hypoxia occurs when there is insufficient oxygen reaching the brain. This condition can lead to various symptoms, including reduced ability to move, difficulty in paying attention, and temporary memory loss.

5. **Conclusion:**
- Based on the information above, the correct answer to the question "Deficiency of oxygen affects most the" is the brain.

**Final Answer:**
- The deficiency of oxygen affects the most the **brain**.

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