In Periplaneta each walking leg consists of five segments. Which of the following is a correct sequence ?

Options

A. Trochanter, coxa, femur, tibia , tarsus
B. Coxa, trochanter, femur, tibia , tarsus
C. Coxa, femur, trochanter, tibia, tarsus
D. Trochanter, fermur, coxa, tibia, tarsus

Answer

To determine the correct sequence of the segments in the walking leg of Periplaneta (the cockroach), we need to identify and list the segments in the order they appear from the body to the tip of the leg. Here’s a step-by-step breakdown of the solution:

### Step-by-Step Solution:

1. **Identify the First Segment**: The first segment of the walking leg is the **Coxa**. This segment connects the leg to the thorax of the cockroach.

2. **Identify the Second Segment**: The second segment is the **Trochanter**. This segment acts like a knee joint, allowing the leg to bend.

3. **Identify the Third Segment**: The third segment is the **Femur**. This segment is analogous to the thigh in humans.

4. **Identify the Fourth Segment**: The fourth segment is the **Tibia**. This segment also resembles the thigh and is located below the femur.

5. **Identify the Fifth Segment**: The fifth and final segment is the **Tarsus**. This segment functions like an ankle or foot, aiding in climbing and movement.

### Correct Sequence:
Thus, the correct sequence of the segments in the walking leg of Periplaneta is:
1. Coxa
2. Trochanter
3. Femur
4. Tibia
5. Tarsus

### Conclusion:
The correct option, based on the sequence identified, is **Coxa → Trochanter → Femur → Tibia → Tarsus**.

---