Consist of
-Cork: Consists of dead cells
-Cork cambium: The cells alive.
-Vascular cambium: lining next address from shell layer.
-Sapwood: The central of wood growth between the inner shell and the core.
-Heartwood: The cells of the plants that do not work.
-Annual Rings: A line to wood that up each year or each season wood growth.
-Xylem Ray: Stem cells from the pith to the cork.
-Pith: In the midst of the stem of the wood in the front cut.