In terms of quantity , the correct chronological order of blood cells is

Options

A. Erythrocyte `gt` thrombocyte `gt` neutrophil `gt` Iymphocyte `gt` monocyte `gt` eosinophil `gt` basophil
B. Erythrocyte `gt` thrombocyte `gt` monocyte `gt` neutrophil `gt` lymphocyte `gt` eosinophil `gt` basophil
C. Erythrocyte `gt` neutrophil `gt` lymphocyte `gt` monocyte `gt` eosinophil `gt` basophil `gt` thrombocyte
D. Erythrocyte `gt` thrombocyte `gt` neutrophil `gt` lymphocyte `gt` eosinophil `gt` monocyte `gt` basophil

Answer

To determine the correct chronological order of blood cells in terms of quantity, we need to analyze the different types of blood cells and their relative quantities. Here’s a step-by-step breakdown:

### Step 1: Identify the Types of Blood Cells
Blood cells can be categorized into three main groups:
1. **Erythrocytes (Red Blood Cells)** - Responsible for oxygen transport.
2. **Thrombocytes (Platelets)** - Involved in blood clotting.
3. **Leukocytes (White Blood Cells)** - Part of the immune system and further divided into several types.

### Step 2: Determine the Quantity of Each Type
- **Erythrocytes**: These are the most abundant blood cells, constituting about 70% of the blood volume.
- **Thrombocytes**: These are the second most abundant, but significantly less than erythrocytes.
- **Leukocytes**: These are the least abundant, and within leukocytes, there are different types:
- **Neutrophils**: The most common type of white blood cell.
- **Lymphocytes**: The second most common type.
- **Monocytes**: Less common than lymphocytes.
- **Eosinophils**: Even less common than monocytes.
- **Basophils**: The least common type of white blood cell.

### Step 3: Establish the Order of Abundance
Based on the above analysis, the order of blood cells from most to least abundant is as follows:
1. **Erythrocytes**
2. **Thrombocytes**
3. **Leukocytes** (which can be further divided into):
- Neutrophils
- Lymphocytes
- Monocytes
- Eosinophils
- Basophils

### Step 4: Compile the Complete Order
Putting it all together, the complete chronological order of blood cells in terms of quantity is:
- Erythrocytes
- Thrombocytes
- Neutrophils
- Lymphocytes
- Monocytes
- Eosinophils
- Basophils

### Conclusion
The correct chronological order of blood cells in terms of quantity is:
**Erythrocytes > Thrombocytes > Neutrophils > Lymphocytes > Monocytes > Eosinophils > Basophils.**