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.
Notice that the apical meristem. produces three primary meristems, which produce the three primary tissue. systems (dermal, ground, and vascular). Figure 35.15 The terminal bud and primary growth of a shoot.