Question

question 43
the primary function of osteoblasts is to:
a lay down bone matrix
b prevent osteocytes from forming
c stimulate bone growth
d inhibit the growth of bone
e resorb bone along the epiphyseal plate

Explanation:

Osteoblasts are cells in the body that are responsible for bone formation. They secrete the organic component of the bone matrix (osteoid), which then mineralizes to form bone. Option B is incorrect as osteocytes form from osteoblasts that become trapped in the bone matrix. Option C is not the primary function; while they contribute to bone growth via matrix deposition, the direct primary role is matrix laying. Option D is wrong as they do not inhibit bone growth. Option E is the role of osteoclasts (cells that break down bone).

Answer:

A. lay down bone matrix