In compact bone, the small spaces where osteocytes are located are called lacunae.
Lacunae are tiny cavities within the bone matrix that house osteocytes, which are mature bone cells responsible for maintaining the bone tissue. These lacunae are interconnected by small channels known as canaliculi, allowing for communication and nutrient exchange between the osteocytes and the surrounding bone matrix. This arrangement is crucial for the health and functionality of the bone, as it facilitates the delivery of oxygen and nutrients while enabling the removal of waste products. Overall, lacunae play a vital role in the maintenance of bone homeostasis.