LYMPHATIC Flashcards
(64 cards)
transports fluids back to blood; role in defense & resistance to disease
Lymphatic system
semi independent parts of lymphatic system
Lymphatic vessels, tissues & organs
excess tissue fluid carried by lymphatic vessels
Lymph
properties of lymphatic vessels
-one way system toward the heart
-no pump
-milks action of skeletal muscle
filter out bacteria that enters
lymph nodes
this where the fluid leaks ; has flapping minivalves
Lymph capillaries
collects lymph from capillaries & to & away from lymph nodes
Lymphatic vessels
2 lymphatic ducts
Right lymphatic duct
Thoracic duct
empties into left subclavian veins ; largest vessel
Thoracic duct
empties into right subclavian vein ; r.upper quadrant
Right lymphatic duct
materials returned to blood
Water
Blood cells
Proteins
Defense cells within the lymph nodes
Macrophages
Lymphocytes
destroy foreign substance
Macrophages
provide immune response to antigens
Lymphocytes
Outer part of lymph nodes ; has follicles
cortex
inner part of lymph nodes; has phagocytic macrophages
Medulla
flow of lymph through nodes
- Lymph enters afferent lymphatic vessels
- Lymph flows through sinuses
- Lymph exits efferent lymphatic vessels
organs that contribute to lymphatic function
spleen, thymus, tonsils & peyers patches
what organ in the lymphatic system filters blood, destroys worn-out blood cells, forms blood cells in fetus & blood reservoir
Spleen
the thymus functions only at peak levels only during___
childhood
small masses of lymphoid tissue in pharynx; trap & remove bacteria
Tonsils
this is cause by congestion w bacteria
Tonsilitis
found in walls of small intestine& destroys its bactera; resemble tonsils structure;
Peyer’s patches
the sentinal to protect respiratory & digestive tracts
Mucosa-Associated lymphatic tissue (MALT)
