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.
Spindle microtubules attach to a specific protein complex called the kinetochore, which is in the centromere area near the center of each chromosome. Other microtubules attach to the chromosome arms or to the other end of the cell.The chromosomes can also create microtubules, as can the spindle itself. The spindle and chromosomal microtubule arrangement is a macromolecular machine that is intricate and dynamic.omponents. The spindle microtubules are protein fibers made up of as many as 45 different proteins that grow from the centrioles. They form a polymer, which is a large molecule made up of many similar molecules linked together.