Resorptionslacuna

Resorptionslacuna, also known as a resorption lacuna or resorption cavity, is a term used in the field of biology and medicine to describe a small, round or oval-shaped space that forms in bone tissue as a result of the process of bone resorption. This process is primarily carried out by osteoclasts, which are specialized cells that break down bone matrix to release calcium and other minerals into the bloodstream. The resorption lacuna is the site where these osteoclasts are actively removing bone material.

The formation of a resorption lacuna is a dynamic process that involves the coordinated activity of osteoclasts and osteoblasts. Osteoblasts, which are responsible for bone formation, eventually fill the resorption lacuna with new bone tissue, maintaining the overall structure and integrity of the bone. This cycle of bone resorption and formation is crucial for maintaining bone health and responding to various physiological demands, such as those experienced during growth, pregnancy, and physical activity.

Resorptionslacunae can be observed under a microscope using techniques such as histology or histomorphometry. They are typically small, ranging from a few micrometers to several millimeters in diameter, and are often found in the spongy (cancellous) bone tissue. The presence and size of resorption lacunae can provide valuable information about bone turnover rates and the overall health of the bone tissue.

In summary, a resorption lacuna is a small space formed in bone tissue as a result of bone resorption by osteoclasts. This process is essential for maintaining bone health and is part of the continuous cycle of bone remodeling. The study of resorption lacunae can provide insights into bone metabolism and the effects of various factors on bone tissue.