The spaces housing osteocytes in bone are called?

The spaces housing osteocytes in bone are called?

• A. Trabeculae
• B. Lamellae
• C. Canaliculi
• D. Lacunae

Answer: (D)

Lacunae are the small spaces in the mineralized bone matrix that contain osteocytes. When osteoblasts lay down bone, some become embedded in the matrix and mature into osteocytes, settling into these tiny cavities. Each lacuna typically holds one osteocyte, which oversees the maintenance of the surrounding bone tissue. The cells stay connected through tiny channels called canaliculi, which radiate from the lacunae to other lacunae and to the central vascular canal, allowing nutrients, waste, and signaling molecules to pass between cells. This network is essential for maintaining bone health and responding to mechanical stress. The other terms refer to different bone features: trabeculae are the lattice-like elements of spongy bone, lamellae are the layered rings around a central canal in compact bone, and canaliculi are the actual channels that connect lacunae.

Lacunae are the small spaces in the mineralized bone matrix that contain osteocytes. When osteoblasts lay down bone, some become embedded in the matrix and mature into osteocytes, settling into these tiny cavities. Each lacuna typically holds one osteocyte, which oversees the maintenance of the surrounding bone tissue. The cells stay connected through tiny channels called canaliculi, which radiate from the lacunae to other lacunae and to the central vascular canal, allowing nutrients, waste, and signaling molecules to pass between cells. This network is essential for maintaining bone health and responding to mechanical stress. The other terms refer to different bone features: trabeculae are the lattice-like elements of spongy bone, lamellae are the layered rings around a central canal in compact bone, and canaliculi are the actual channels that connect lacunae.