There are four main organs that make up your immune system: Bone marrow, Thymus, Spleen, and Lymph Nodes. Bone marrow isn't considered an organ, however, it plays an important part for your immune system to function. Your thymus is useful until after your adolescence, when it pretty much stops working.
Your spleen and lymph nodes filter blood and lymph in the body to fight against anything that may invade it. You can find more information here: micronutra.com/journal/immune-system/wha....
The immune system fights infection from bacteria, viruses and other microbes.It is made up of specialised cells that move through blood and tissue. The white blood cells that make up the immune system.
The muscular system contains 600 muscles. Several organs are in the muscular system. Your heart is a very important organ in the muscular system.
Another organ that is a muscle is your bladder. You can find more information here: web.jjay.cuny.edu/~acarpi/NSC/14-anatomy....
The nervous system is very important system in human body. In the nervous system are brain, all the sense organs and the spinal cord. There are central nervous system and peripheral nervous system.
46 Charles Sherrington, in his influential 1906 book The Integrative Action of the Nervous System,45 developed the concept of stimulus-response mechanisms in much more detail, and Behaviorism, the school of thought that dominated Psychology through the middle of the 20th century, attempted to explain every aspect of human behavior in stimulus-response terms. However, experimental studies of electrophysiology, beginning in the early 20th century and reaching high productivity by the 1940s, showed that the nervous system contains many mechanisms for generating patterns of activity intrinsically, without requiring an external stimulus. 48 Neurons were found to be capable of producing regular sequences of action potentials, or sequences of bursts, even in complete isolation.
49 When intrinsically active neurons are connected to each other in complex circuits, the possibilities for generating intricate temporal patterns become far more extensive. 43 A modern conception views the function of the nervous system partly in terms of stimulus-response chains, and partly in terms of intrinsically generated activity patterns—both types of activity interact with each other to generate the full repertoire of behavior. The simplest type of neural circuit is a reflex arc, which begins with a sensory input and ends with a motor output, passing through a sequence of neurons in between.
51 For example, consider the "withdrawal reflex" causing the hand to jerk back after a hot stove is touched.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.