Some organs of the immune system are called lymphoid organs because they are home to lymphocytes which are the main components of the lymphatic system, The parts of the immune system are scattered throughout...
The life of any living organisms is exposed to continuous threats either from Biological sources (such as pathogens including some insects, animals, protozoa, fungi, bacteria and viruses), Non-biological sources (such as accidents, natural disasters...
The contraction of the right side of the heart occurs at the same time of the left side contraction, Therefore, the pumping of deoxygenated blood from the right ventricle and the pumping of the...
