Any activities such as exercise or eating can affect your systolic blood pressure measurement 10 to 20 mmHg. Arm/Back/Feet Unsupported1,3,4 - When having your blood pressure measured, you should always be seated in a comfortable chair, legs uncrossed, with your back and arm supported.
Microtubules are filamentous intracellular structures that are responsible for various kinds of movements in all eukaryotic cells. Microtubules are involved in nucleic and cell division, organization of intracellular structure, and intracellular transport, as well as ciliary and flagellar motility.icrotubules form a framework for structures such as the spindle apparatus that appears during cell division, or the whiplike organelles known as cilia and flagella. Cilia and flagella are the most well-studied models for microtubule structure and assembly, and are often used by textbooks to introduce microtubules.
A kinetochore microtubule, as its name suggests, is the type of microtubule that attaches to the kinetochores of the condensed chromosomes (this is the type that draws the chromosomes toward the centrosomes at the poles of the dividing cell). More >>. Spindle apparatus >>. Biology Dictionary >>. A polar microtubule does not attach to a chromosome. Instead, they emanate from the two centrosomes and overlap with each other in the center of the cell and, by sliding against each other, force the centrosomes toward the poles of the cell.