T- lymphocyte
Make up approximately 80% of circulating lymphocytes. Produced in the thymus responsible for attacking and destroying foreign cells.
Helper T cells
Special type of t cell that stimulates e functions of both t and b cells
B- lymphocyte
Make up approximately 10-15% of circulating lymphocytes. Produced in the bone marrow; differentiate into plasma cells after exposure to specific antigens.
Plasma cells
Produce antibodies which target specific antigens
Natural killer cells
Make up 5-10% of circulating lymphocyte. Responsible for immunological surveillance and attacking foreign cells, virus-infected cells, and cancer cells.
Macrophages
Phagocytizes bacteria and helps activate T cells.
Reticular cells
Binds to antigens and presents them to other immune cells.
Dendritic cells
Forms the stroma (structural network that supports other immune cells) in most lymph organs.
Peyer's patches
Clusters of lymphoid nodules found in the submucosa of the ileum.
Protect against potential pathogens that might enter the body through intestinal mucosa.
Vermiform appendix
Diverticulum branching from the first part of the large intestine that contains lymph aggregations of lymph tissue in its walls. It protects against potential pathogens that may enter the body through the cecum.
Human immunodeficiency virus
Disease that targets the helper T cells. With progression to acquired immune deficiency syndrome, the lack of helper T cells suppresses the immune system and compromises an individual's ability to fight off secondary infections.
Lymphadenophathy
Enlargement or swelling of the lymph nodes caused by a number of diseases.
Lympohedema
Blockage of normal lymph drainage leading to swelling associated with the accumulation of fluid.
Autoimmune disease
Malfunction in the immune system where a response is triggered and the immune system begins to create antibodies against the body's own tissues.
Buboes
Swelling of the lymph nodes in response to infections such as bubonic plague, gonorrhea, tuberculosis, or syphilis.
Tonsillitis
Inflammation of the tonsils caused by either viral or bacterial infection.
jugular
Which lymphatic trunk drains to the head and neck?
subclavian
Which lymphatic trunk drains to the upper limbs?
branchomediastinal
Which lymphatic trunk drains to the thoracic cavity?
intestinal
Which lymphatic trunk drains to the abdominal cavity?
lumbar
Which lymphatic trunk drains the lower limbs?
cisterna chyli
Which lymphatic trunk drains the lumbar trunks, and intestinal trunk; begins the thoracic duct.
right lymphatic duct
Which lymphatic duct drains the right side of the head and neck, right upper limbs, and right thoracic cavity?
thoracic duct
Which lymphatic duct drains the left side of the head and neck, left upper limb, left thoracic cavity, abdominal and pelvic cavities and lower limbs?