Question

The sequential arrangement of parts in the leg of an insect is
(A). Claw
(B). Coxa
(C). Femur
(D). Tarsus
(E). Tibia
(F). Trochanter
Choose the correct answer from the options given below:

• A. (B), (C), (D), (E), (F), (A).
• B. (B), (E), (C), (D), (F), (A).
• C. (B), (F), (C), (E), (D), (A).
• D. (B), (C), (F), (E), (D), (A).

Hint:

To easily memorize the segments from proximal to distal:
Coxa $\rightarrow$ Trochanter $\rightarrow$ Femur $\rightarrow$ Tibia $\rightarrow$ Tarsus $\rightarrow$ Claw.
Think of it as: "Cops Try For Tough Target Claws."

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
The leg of an insect is a segmented appendage.
These segments are arranged sequentially from the proximal end (attached to the thorax) to the distal end (the tip of the leg).
Detailed Explanation:
The anatomical segments of an insect's leg, starting from the point of attachment to the body (proximal) to the tip (distal), are as follows:
1. Coxa (B): The proximal-most segment that articulates with the thorax.
2. Trochanter (F): A small, typically single-segmented part that serves as a hinge between the coxa and the femur.
3. Femur (C): Usually the largest, thickest, and most muscular segment of the insect leg.
4. Tibia (E): The long, slender segment located between the femur and the tarsus.
5. Tarsus (D): The foot of the insect, which is divided into several smaller segments called tarsomeres.
6. Claw (A): The terminal structure (pretarsus) located at the very end of the tarsus.
Thus, the correct proximal-to-distal sequence is:
Coxa (B) $\rightarrow$ Trochanter (F) $\rightarrow$ Femur (C) $\rightarrow$ Tibia (E) $\rightarrow$ Tarsus (D) $\rightarrow$ Claw (A).

Step 2: Final Answer:
This sequence matches with option (C).