AEMCA Practice Exam

What type of cells are primarily involved in the formation of new bone tissue?

1. Osteogenic cells

2. Osteoclasts

3. Osteoblasts

4. Chondrocytes

The correct answer is: Osteoblasts

The cells primarily responsible for the formation of new bone tissue are osteoblasts. These specialized cells play a crucial role in the process of bone formation, known as osteogenesis. Osteoblasts originate from osteogenic cells and are responsible for secreting the bone matrix, which primarily consists of collagen and other organic components. They also facilitate the mineralization of this matrix, leading to the hardening and structural integrity of the bone. Osteoclasts, on the other hand, are involved in the resorption of bone tissue, working to break down bone material for remodeling or repair, and are not involved in the initial formation of new bone. Chondrocytes are cells found in cartilage, playing a key role in the growth and maintenance of cartilage rather than bone. Osteogenic cells serve as precursors to osteoblasts and help in their formation, but it is the osteoblasts that actively build and create new bone tissue.