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.
1 APICAL meristems (located at the tips of roots and shoots) give rise to three PRIMARY MERISTEMS (protoderm, ground meristem, and procambium). 2  LATERAL MERSTEMS are cylindrical, secondary meristems in both stem and root that give rise to either vascular tissue or secondary dermal tissues.3  They are the. APICAL meristems (located at the tips of roots and shoots) give rise to three PRIMARY MERISTEMS (protoderm, ground meristem, and procambium). 2  LATERAL MERSTEMS are cylindrical, secondary meristems in both stem and root that give rise to either vascular tissue or secondary dermal tissues. 3  They are the.