Osteoblasts are cells that
A) lay down new matrix on bone surfaces.
B) are surrounded by matrix and remain in contact through thin cellular extensions.
C) sit in lacunae that are connected by tiny channels.
D) break down old bone and deposit new bone.
E) break down old cartilage and deposit new bone.

Question

Quizplus · Accepted Answer

Osteoblasts are responsible for laying down new matrix on bone surfaces, which is essential for bone growth and maintenance. They secrete collagen and other proteins that form the organic matrix of bone, which is then mineralized with calcium and phosphate to form hard, mineralized bone tissue. Osteoblasts are also involved in the regulation of bone remodeling, which is the process of breaking down and rebuilding bone tissue to maintain its strength and structure.

Osteoblasts Are Cells That