1 The SCREEN must be completed prior to admission to a RHCF for every person, for any reason and any length of stay.  As soon as a person has been newly diagnosed with a mental illness and/or intellectual disability/developmental disability. (See 42 CFR 483.20(e) & 483.108(c); 42 USC 1396r (e)(7).)
Microtubule play important roles in cell division, intracellular transport, cell movement and in the maintenance of cell structure. Microtubules(MTs) are polymers of dimeric alpha and beta tubulins. They are one of the cytoskeletal elements. They provide rigidity to the cell thereby maintaining its shape.
As mitosis progresses, the microtubules attach to the chromosomes, which have already duplicated their DNA and aligned across the center of the cell. The spindle tubules then shorten and move toward the poles of the cell. As they move, they pull the one copy of each chromosome with them to opposite poles of the cell.