First the structure of a lymph node... we have the cortex, paracortex and the medulla. It is made mainly of recticular cells, then lymphocytes and macrophage.
So you have APCs presenting the antigen which enter lymph node via HEV, basically post-capillary venous swelling made of simple cuboidal cells. These allows things in blood to enter the lymph node. Then after that you have the APC interacting with B cells in the cortex and the T helper cells in paracortex.
Both B and T cells get stimulated.
B cells can either stay in cortex to form secondary follicles / germinal center or migrate to medullary cord to become plasma cells and secrete antibodies.
The function of germinal center is to increase antibody affinity, isotope change (change classes) and differentiation and proliferation.
A malfunction of the lymph nodes would most likely interfere with the body's immune response because lymph nodes are a key part of the immune system, filtering out harmful substances and producing immune cells.
Yes, there are lymph nodes located along the jawline. These lymph nodes play a role in filtering lymph fluid and immune response in the head and neck region. Swelling or tenderness in these lymph nodes can sometimes be an indication of infection or inflammation in the surrounding areas.
Lymph nodes swell as a normal immune response to infection or inflammation. This swelling occurs as the lymph nodes work to filter and trap viruses, bacteria, or other pathogens. The increased activity of immune cells in the lymph nodes causes them to enlarge.
Thickening of a lymph nodes cortex is likely caused from things like cancers, and inflammation. With this, comes problems with the immune system and response.
Yes, pigs do have lymph nodes. Lymph nodes are an important part of the immune system that helps filter and trap pathogens such as bacteria and viruses.
lymph node cancer is cancer in your lymph nodes they are all over your body..around you neck stomach legs arms you have lymph nodes all over
Spleen •Site of lymphocyte proliferation and immune surveillance and response •Cleanses the blood of aged cells and platelets and debris
Yes, they are a part of the immune system.
Regional lymph nodes where they present to T cells, activating the adaptive immune response.
Reactive adenopathy refers to enlarged lymph nodes that are responding to an infection, inflammation, or other immune system stimulus. This reaction typically causes the lymph nodes to become swollen, tender, and firm. It is a normal and common immune response to various health conditions.
it makes sperm cells
The lymph nodes located above the heart are primarily referred to as the supraclavicular lymph nodes. These nodes are situated above the clavicle and play a crucial role in draining lymphatic fluid from the head, neck, and upper extremities. They are important in the immune response and can be involved in various medical conditions, including infections and cancers.