The Lacunae are situated between the lamellae, and consist of a number of oblong spaces. In an ordinary microscopic section, viewed by transmitted light, they appear as fusiform opaque spots.Each lacuna is occupied during life by a branched cell, termed an osteocyte, bone-cell or bone-corpuscle.Lacunae are connected to one another by small canals called canaliculi.n an ordinary microscopic section, viewed by transmitted light, they appear as fusiform opaque spots. Each lacuna is occupied during life by a branched cell, termed an osteocyte, bone-cell or bone-corpuscle.