lymphatic system assigned reading

special set of lymphatic capillaries that transport absorbed fat from small intestine to blood

lacteals

fatty lymph that drains from the fingerlike villi of the intestinal mucosa

• drain through lacteals

chyle

places where lymphatic vessels converge to form trunks

• occur in large clusters near the surface of: inguinal, axillary, and cervical

lymph nodes

tropical disease where the lymphatics become clogged with parasitic round worms (filariasis)

• significant swelling due to edema

elephantiasis

lymphoid tissue cancer characterized by giant transformed B-cells called “Reed-sternberg cells”

• swollen lymph nodes, fatigue, fever, night sweats

• caused by Epstein Barr virus and genetic susceptibility

• treatment: chemotherapy/ radiation

hodgkin’s lymphoma

viral infection caused by Epstein Barr virus that spreads through saliva

• fatigue, fever, swollen lymph nodes, severe sore throat

mononucleosis

uncontrolled multiplication and metastasis of lymphocytes with swelling of the lymph nodes, spleen, and peyers patches

non-hodgkin’s lymphoma

• all cancers of lymphoid tissue except Hodgkin’s lymphoma

inflammation of the tonsils due to bacterial infection

• tonsils= red, swollen, sore

tonsillitis

weeping skin lesions and intense itching caused by atopic dermatitis

• usually begins in first 5 years of life

eczema

redenering a subject immune by vaccination or antiserum

immunization

condition where inflammatory response goes out of control

• WBCs (neutrophils) secrete cytokines that increase capillary permeability- leaky- blood becomes depleted of fluid

• blood pressure falls and leads to death

  • bacterial infection in a weakend immune system

septic shock (sepsis)

chronic autoimmune disease where immune system attacks the body’s own healthy cells/ tissues that causes widespread inflammation to kidneys, blood vessels, bran and synovial membranes

• results in vascular problems, memory loss, arthritis, skin lesions, and butterfly rash on face

systemic lupus erythematosus (SLE)

infection/ inflammation of the lymphatic vessels

• appears as tender red streak on the skin extending from an infected wound toward nearby lymph nodes

lymphangitis

anything that prevents the normal return of lymph to the blood and results in edema

lymphedema

swollen lymph nodes filled with pus

buboes