Chapter 14: Lymphatic and Immune Flashcards
lymph
clear, watery fluid surrounding body cells and flowing into system of vessels
-originate from blood (filtered from capillaries)
WBC
white blood cells
- lymphocyte
- monocytes
interstitial fluid
fluid surrounds body cells and passes into lymph capillaries
Lymphocyte and monocyte
originate in bone marrow, lymph nodes, and spleen/thymus.
spleen function
- macrophages destroy old erythrocytes (RBC)
- filters microorganisms and other foreign material from blood
- activated lymphocytes
- stores blood
thymus function
- protects self from disease (immunity)
- makes antibodies; produces immune cells that fight forcing antigens such as bacteria and viruses.
natural immunity
- resistance at birth
- no prior exposure to antigen
- neutrophils, monocytes, macrophages, and NK cells
- no immunological memory
adaptive immunity
- lymphocytes: T and B cells
- antibodies produced after exposure to antigen
- memory: second exposure elicits faster and larger response
- vaccination
- antitoxins
- immunoglobulins
- maternal antibodies
adenoids
mass of lymphatic tissue in nasopharynx
antibody
protein produced by B cells. destroy antigens
antigen
substance that the body recognizes as foreign
T cell
lymphocyte that acts directly on an antigen
B cell
lymphocyte that matures into a plasma cell to secrete antibodies
immunotherapy
the use of B cells and T cells to treat conditions such as cancer.
monoclonal antibodies (MoAb)
created in a lab by cloning techniques. they attack specific cancer cells.
- MoAb therapy and transplants are passive immunotherapy
transfer of immunity cells
in a bone marrow, transplant, T lymphocytes from a donor replaces a patient’s immune system with new cells that “recognize” tumor cells as foreign and kill them.x
vaccine
contains antigens from pt’s tumor cells. Vaccines are active immunotherapy (pt’s own immune system stimulated to do the work.
immun/o
immune
lymph/o
lymph
lymphaden/o
lymph node, gland
splen/o
spleen
thym/o
thymus gland
tox/o
poison
ana-
up
inter-
between
immunodeficiency (AIDS)
groups of signs and symptoms associated with suppression of immune system
HIV
destroys the Helper T cells, allowing infectious to occur.
Candidiasis
yeast like fungus infection
herpes simplex
viral infection
tuberculosis
involves lungs, brain, and other organs
lymphoma
characterized by lymphadenopathy (disease of lymph nodes which then enlarge), splenomegaly, fever, weakness, and loss of weight and appetite
myeloma
malignant tumor of bone marrow
thymoma
tumor of thymus gland. surgery is the principal method of treating. Postoperative radiation therapy used for patients with evidence of tumor spread (metastasis)
anaphylaxis
unusual hypersensitivity to previously encountered foreign proteins/other antigens. symptoms include dilation of vessels, decrease in blood pressure. may be life-threatening.
interferons
cytokines secreted by T cells and other cells. aids/regulates immune response.
phag/o
eat or swallow
