Essay On Platelet

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Platelets or thrombocytes (thromb- + -cyte, "blood clot cell"), are a component of blood whose function along the coagulation factors is to stop bleeding by clotting blood vessel injuries. Platelets are biconvex discoid (lens-shaped) structures and 2–3 µm in greatest diameter, have no cell nucleus .[1] They are fragments of cytoplasm that are derived from the megakaryocytes of the bone marrow and then enter the circulation. [2] Structurally the platelet can be divided into four zones, from peripheral to innermost: I. Peripheral zone - is rich in glycoproteins required for platelet adhesion, activation, and aggregation.. II. Sol-gel zone - is rich in microtubules and microfilaments, allowing the platelets to maintain their discoid shape. III. Organelle zone - is rich in platelet granules. IV. Membranous zone. Low platelet concentration is thrombocytopenia and is of either decreased production or increased destruction. Elevated platelet concentration is thrombocytosis. A disorder of platelet function is a thrombocytopathy. High blood pressure or "hypertension," is a medical condition. It happens when the force of the blood pumping through the arteries is too strong. Long term high blood pressure is a major risk factor for many diseases like coronary artery disease, stroke, heart failure, peripheral vascular disease, vision loss, and chronic kidney…show more content…
It usually has a glass electrode and a reference electrode, or a combination electrode. The electrodes, or probes, are dipped into the solution to be tested. On immersion of the glass electrode and the reference electrode in the test solution, an electrical circuit is completed in which there is a potential difference created and detected by the voltmeter. The magnitude of the electrochemical potential across the glass bulb is linearly related to the pH according to the Nernst

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