Lymphatic System Flashcards
Lymphatic System
comprised of lymph vessels and nodes to collect excess fluid from the interstitial spaces and returns it to the heart
comprised of lymph vessels and nodes to collect excess fluid from the interstitial spaces and returns it to the heart
Lymphatic System
Venous End of the Lymph Capillaries
reabsorb fluid pushed from the cardiovascular arterial capillaries into the interstitial space and the lymph picks up any excess fluid
reabsorb fluid pushed from the cardiovascular arterial capillaries into the interstitial space and the lymph picks up any excess fluid
Venous End of the Lymph Capillaries
The lymphoid organs scattered throughout the body house:
phagocytic cells and lymphocytes that are essential to the body’s defense system and its resistance to disease
phagocytic cells and lymphocytes that are essential to the body’s defense system and its resistance to disease
The lymphoid organs scattered throughout the body house:
Four Lymphoid organs
spleen, thymus, tonsils, and Peyer’s patches of the intestine
spleen, thymus, tonsils, and Peyer’s patches of the intestine
Four Lymphoid organs
Spleen
filters and destroys red blood cells that are no longer efficient. It serves as a blood-forming organ early in life, and later as a storage unit for extra red blood cells and platelets
filters and destroys red blood cells that are no longer efficient. It serves as a blood-forming organ early in life, and later as a storage unit for extra red blood cells and platelets
Spleen
Thymus
a bi-lobed organ located in the upper thorax and can extend into the lower neck. After puberty, the thymus starts to atrophy gradually. The thymus is responsible for T-lymphocyte maturation, enabling them to function against specific pathogens in the immune response
a bi-lobed organ located in the upper thorax and can extend into the lower neck. After puberty, the thymus starts to atrophy gradually. The thymus is responsible for T-lymphocyte maturation, enabling them to function against specific pathogens in the immune response
Thymus
Tonsils
partially encapsulated lymphoid tissue in the throat. They are named according to their location: palatine tonsils, lingual tonsils, and pharyngeal tonsil (referred to as the adenoids if enlarged)
partially encapsulated lymphoid tissue in the throat. They are named according to their location: palatine tonsils, lingual tonsils, and pharyngeal tonsil (referred to as the adenoids if enlarged)
Tonsils
Peyer’s Patches
found in the lining of the intestine and contain high levels of white blood cells, which help in fighting infection and disease
found in the lining of the intestine and contain high levels of white blood cells, which help in fighting infection and disease
Peyer’s Patches
Appendix
a mass of lymphoid tissue attached to the first part of the large intestine
a mass of lymphoid tissue attached to the first part of the large intestine
Appendix
