Osteon is found in :-

Options

A. Femur of Rana tigrina
B. Sternum of pavo
C. Diaphysis part of femur of human
D. Epiphysis part of humerus of human

Answer

**Step-by-Step Solution:**

1. **Understanding Osteon**: Osteon, also known as Haversian system, is a structural unit of compact bone. It consists of a central canal surrounded by concentric rings of bone matrix.

2. **Location of Osteon**: Osteons are primarily found in the compact bone of various parts of the body, particularly in long bones.

3. **Identifying the Correct Answer**: The question asks where Osteon is found. Based on the information provided, Osteons are found in the femur (thigh bone) and the pubis (part of the pelvic bone) in humans.

4. **Eliminating Incorrect Options**:
- The transcript mentions that Osteon is not found in the frog (Rana taigreena) or in the epiphysis part of the humerus (upper arm).
- Therefore, the correct answer is the diphysis part of the femur in humans.

5. **Conclusion**: Osteon is found in the diphysis part of the femur, which is the correct answer.

**Final Answer**: Osteon is found in the diphysis part of the femur.

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