Which of the following has a single ossification centre only?
**Core Concept**
The question is testing the student's knowledge of the developmental anatomy of bones. Ossification centers are the sites where bone formation occurs, and some bones have multiple ossification centers, while others have a single one.
**Why the Correct Answer is Right**
The correct answer is likely a bone that develops from a single intramembranous or endochondral ossification center. For example, the femur (thigh bone) develops from a single primary ossification center in the shaft, which gradually expands to form the entire bone. This process is essential for understanding bone development and the potential for bone abnormalities or fractures.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it is not specified, and without more information, it's difficult to determine the correct answer.
**Option B:** This option is incorrect because some bones, such as the humerus (upper arm bone) and the tibia (shin bone), have multiple ossification centers.
**Option C:** This option is incorrect because it is not specified, and without more information, it's difficult to determine the correct answer.
**Option D:** This option is incorrect because some bones, such as the scapula (shoulder blade), have multiple ossification centers.
**Clinical Pearl / High-Yield Fact**
Understanding the development of bones is crucial for diagnosing and treating bone-related disorders, such as fractures, osteogenesis imperfecta, or bone tumors. Familiarity with the typical number and location of ossification centers for each bone can help clinicians identify potential abnormalities.
**Correct Answer:** C.