The hematic system is composed of blood and the vessels that carry the blood throughout the body The solid portion of blood is composed of three different types of cells: Erythrocytes - also called red blood cells (RBCs),they have the important function of transport Oxygen and Carbondioxide throughout the body. The vehicle for this transportation is a protein-iron pigment called hemoglobin. Leukocytes - also called white blood cells (ABCs) ,they protect the body against microorganism, further sub classification is of two main types of WBCs: granulocytes(Eosinophils, Neutrophils, Basophils) and agranulocytes (Monocytes and lymphocytes) Thrombocytes - also called clotting cells, cell fragments, or platelets.
Review articles are the summary of current state of understanding on a particular research topic. They analyze or discuss research previously published by scientist and academicians rather than reporting novel research results.
Review article comes in the form of systematic reviews and literature reviews and are a form of secondary literature. Systematic reviews determine an objective list of criteria, and find all previously published original research papers that meet the criteria. They then compare the results presented in these papers. Literature reviews, by contrast, provide a summary of what the authors believe are the best and most relevant prior publications.
The concept of "review article" is separate from the concept of peer-reviewed literature. It is possible for a review to be peer-reviewed, and it is possible for a review to be non-peer-reviewed.
Last date updated on December, 2020