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.
B.Internal Structure of Roots. 1.Cells in the apical meristem divide and then differentiate into root. epidermis, ground tissues, and vascular tissues behind the meristematic. region. a.The root cap protects the apical meristem and pushes through the. soil.b.Cells are torn loose as the root grows..Internal Structure of Roots. 1.Cells in the apical meristem divide and then differentiate into root. epidermis, ground tissues, and vascular tissues behind the meristematic. region. a.The root cap protects the apical meristem and pushes through the. soil.