1 Tuberculous pleuritis may occur in some people who have the lung disease from tuberculosis.  The pleural disease occurs from the rupture of a diseased area into the pleural space, the space between the lung and the lining of the chest and abdominal cavities.
The root apical meristem is a region of growth tissue near the tip of each root. The meristematic cells in this region grow in two directions, both backward toward the above-ground shoot and forward toward the tip of the root.
The shoot tissues arise from the shoot apical meristem as dermal tissue, ground tissue, and vascular tissue. Secondary meristems (vascular cambium and cork cambium) then add girth to the plant by adding secondary xylem, phloem, and cork.Top of Page. Shoot Apical Meristem: the apical meristem includes the a group of dividing cells that give rise to three primary meristematic tissues, protoderm, ground meristem, and procambium.The outermost layer of cells is the protoderm which forms a single sheet of meristematic cells that give rise to the epidermis.he shoot tissues arise from the shoot apical meristem as dermal tissue, ground tissue, and vascular tissue. Secondary meristems (vascular cambium and cork cambium) then add girth to the plant by adding secondary xylem, phloem, and cork.