Knee caps are primarily made of bone, with some cartilage and fatty tissue.
After analyzing the question and the reference, the question is slightly incomplete. A more complete phrasing would be: What is the composition of a fully developed knee cap?
Here's a detailed breakdown:
Composition of a Fully Developed Knee Cap
A fully developed knee cap, typically around age 10-12, is primarily bone. However, it also includes smaller portions of other tissues:
- Bone: The main component of a mature knee cap.
- Cartilage: A small portion of the original structure remains as cartilage. This provides a smooth surface for joint movement.
- Fat Pad: Another small portion consists of fatty tissue, known as a fat pad.
| Component | Description |
|---|---|
| Bone | The primary structural material, providing strength and shape. |
| Cartilage | A smooth, protective tissue that reduces friction in the knee joint. |
| Fat Pad | A cushion of fatty tissue that provides additional padding and support. |
The development of the knee cap into bone is a gradual process, starting with cartilage and evolving into a bony structure with remnants of cartilage and fatty tissue.
