Which cell is located in lacunae within bone tissue?

Which cell is located in lacunae within bone tissue?

• A. Osteocyte
• B. Osteoblast
• C. Chondroblast
• D. Osteoclast

Answer: (A)

Within bone tissue, lacunae are tiny cavities in the mineralized matrix that house osteocytes. These cells come from osteoblasts that become embedded in the bone they secreted, and their main job is to maintain the surrounding matrix and coordinate remodeling. Osteocytes stay inside these lacunae and extend processes through small channels called canaliculi, connecting with other osteocytes and cells on the bone surface to share nutrients and signals. This interior location explains why they’re found in lacunae rather than on the surface. In contrast, osteoblasts sit on the bone surface to form new matrix, osteoclasts resorb bone at bone surfaces, and chondroblasts form cartilage rather than bone.

Within bone tissue, lacunae are tiny cavities in the mineralized matrix that house osteocytes. These cells come from osteoblasts that become embedded in the bone they secreted, and their main job is to maintain the surrounding matrix and coordinate remodeling. Osteocytes stay inside these lacunae and extend processes through small channels called canaliculi, connecting with other osteocytes and cells on the bone surface to share nutrients and signals. This interior location explains why they’re found in lacunae rather than on the surface. In contrast, osteoblasts sit on the bone surface to form new matrix, osteoclasts resorb bone at bone surfaces, and chondroblasts form cartilage rather than bone.