Iz Uchebnika Biologii D V Kolesova: Laboratornaja Rabota

A cylindrical structure consisting of concentric layers (lamellae) of bone matrix.

Set up the microscope and adjust the lighting for optimal visibility. laboratornaja rabota iz uchebnika biologii d v kolesova

A dark circle in the center of the osteon where blood vessels and nerves pass through to nourish the bone. and the osteocytes (bone cells).

Locate the osteons (the structural units of bone), the Haversian canals (central channels for blood vessels), and the osteocytes (bone cells). laboratornaja rabota iz uchebnika biologii d v kolesova