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.
Marestematic TissueMaristematic tissue is composed of actively dividing cells. It is located on the growth point in stem tip. Cambium of dicotyledon, and root tip. Types of Meristematic Tissue Based on the location Meristematic tissue can be distinguished into apical, intercalary, and lateral meristems.Apical meristem is located on the tip of rood and stem. Intercalary meristem is located between mature tissues, e.g at the base of nodes in grass stem.asically, there are three types of primary meristem as follows. 1  Protoderm, which is the outer layer of developing tissues (derived from apical meristem). 2  Ground meristem, Which is meristem which form ground tissues. 3  Procambium, which is meristem which form vascular tissues.