The different systems of the body interact with and rely upon one another. (Image credit: colematt via Getty Images) Immune: The immune system is the body's defense against bacteria, viruses and other pathogens that may be harmful. Components of the system include the lymph nodes, which cont...
Urine is formed in the kidneys by the filtering unit called the nephron. The nephron receives blood from the renal artery and filters it to remove waste products of metabolism, excess fluid, and toxins. The tubular structure of the nephron is lined with various channels that can reabsorb ...
How does the integumentary system act as a blood reservoir? How is tissue fluid formed in capillary beds? How does blood help maintain homeostasis in the body? What happens to the body when the circulatory system fails? How do you keep the circulatory system healthy?
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That second pillar of exercise or daily movement assists the body in circulating the blood and the lymph and it strengthens our muscles and that foundation's really important, especially if we can move our body every day in a way that induces sweating because sweating is going to be one of...
In the case of red blood cells the cells are fully formed in the marrow and then enter the bloodstream. In the case of some white blood cells, the cells mature elsewhere. The marrow produces all blood cells from stem cells. They are called "stem cells" because they can branch off and ...
How does recognition occur to start the immune response? Major Histocompatibility Complex: Major histocompatibility complex molecules are proteins involved in presenting antigens to cells of the adaptive immune system. MHC class I molecules are present on all nucleated cells in ...
If there's skin redness that spreads out from your injury, swelling, green or yellow fluid, or increased warmth or tenderness around the wound, you may have an infection. Other signs include swollen lymph nodes at your neck, armpit, or groin, as well as body aches, chills, or fever. If...
It has been demonstrated that melanoma cells have a de-differentiated phenotype during the process of invasion and metastasis formation, which is characterised by low pigmentation and reduced proliferation. Once the cells reach the secondary site where the metastatic growth is formed, cells switch back...
Infection refers to the transmission of the pathogen through the vector which causes the multiplication of the microorganism inside the body and weakening of the immune system if the pathogen is much harmful. The pathogens include bacteria, fungal spores, and viruses....