Cells in lacunae allow for the exchange of nutrients and waste products with the surrounding extracellular matrix. They also help maintain tissue structure and function by secreting and maintaining the matrix components.
Lacunae.
Osteocytes. These cells are housed within the lacunae of the bone matrix and play a key role in maintaining bone health and structure.
Canaliculi
Cells inside lacunae receive oxygen through diffusion from nearby blood vessels. Blood vessels supply oxygen to surrounding tissues, which then diffuse into the lacunae where the cells reside. This process ensures that the cells inside lacunae receive the necessary oxygen for their metabolism.
The canal that connects lacunae to osteocytes is called a canaliculus. Canaliculi are small channels that allow for communication and nutrient exchange between osteocytes located within lacunae in compact bone tissue.
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The tiny canals that connect the lacunae are the canaliculi, the larger canals are the Haversian canals.
In lacunae, you can find chondrocytes. Chondrocytes are cells that are responsible for maintaining the extracellular matrix of cartilage tissue.
In biological terms, lacunae can refer to the small cavities within bone tissue where osteocytes reside. In a general sense, lacunae can also refer to any small empty space or gap within a structure.
Canaliculi. Their function is to allow nutrients and waste to pass between osteocytes within the bone matrix.
Osteocytes and lacunae are found in the mineralized extracellular matrix of bone tissue, not within a specific bone. Osteocytes are the primary cells of mature bone, residing within small cavities called lacunae.