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Plasma and Serum: Two liquid materials plasma and serum both are the elements of blood. But if we try to understand we would find how plasma differs from serum. Plasma and serum both are useful to determine different kinds of situations in blood. Serum can be used to diagnose various diseases, like blood sugar, blood … Read more

Now we will discuss major difference between blood and lymph Blood and lymph: Blood mainly transports all materials from different parts of the body to other parts of the body. Lymphs carry different elements of the immune system. Blood performs the main circulatory function and lymph perform immune function in our body’s defence mechanism. Blood … Read more

Primary and secondary lymphoid organs detailed study: We can categorize all lymphoid organs according to their functions in the immune system- primary lymphoid organs and secondary lymphoid organs. Primary lymphoid organs: Two types of lymphoid organs are primary in nature – bone marrow and thymus. Bone marrow: In bone marrow different types of body cells … Read more

Composition of lymphatic system: Lymphatic system our first line of defence contains fluid called lymph. The Lymphatic system works in the whole body through a network of lymph capillaries. Lymphatic vessels, lymphoid organs, lymph corpuscles, lymph plasma collectively form lymphatic systems.  Lymphatic vessels:  Lymphatic vessels make networks in tissues. In interstitial space fine tubes like … Read more

Now we will discuss about Difference between primary lymphoid organs and secondary lymphoid organs What is primary lymphoid organs and secondary lymphoid organs: Primary lymphoid organs are the main place where lymphocytes are developed and matured. Differentiation of lymphocytes also occurs in primary lymphoid organs. In primary lymphoid organs stem cells decided to be either … Read more

Function of lymphatic system: In the lymphatic system lymph vessels and lymphoid organs have a great contribution in our immunity system. Besides immune function it has several other functions. It collects tissue fluid from intercellular space and filters it then it goes back to intercellular space. It carries an immune system cell to fight against … Read more

I am going to list 30 most important topics on biology. This topic is important for all streams of biology. Every student must give emphasis on those topics. Proper understanding is must on these topics. Most of the questions asked in all competitive exams which have biology as a part of syllabus on these topics. … Read more