Lymph
The primary function of lymph is to return excess this to the bloodstream.
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What is interstitial fluid?
T cells mature in this organ.
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What is the thymus?
B cells mature in this organ.
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What is the bone marrow?
This lymphatic organ filters blood rather than lymph.
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What is the spleen?
A patient develops swollen cervical lymph nodes during a throat infection. These structures enlarge because of activation of this type of cell.
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What are lymphocytes?
Lymph contains large numbers of these immune cells.
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What are lymphocytes?
The primary role of helper T cells is to release these signaling proteins.
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What are cytokines?
The immunity mediated by antibodies is called this.
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What is humoral immunity?
The spleen removes these aging blood cells.
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What are old or damaged red blood cells?
A patient has recurrent bacterial infections because they cannot produce antibodies. Which cells are defective?
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What are B cells?
Lymph differs from blood because it normally contains very few of these cells.
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What are red blood cells?
An organ transplant may be rejected because cytotoxic T cells recognize donor cells as this.
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What are foreign (non-self)?
B cells produce these proteins to fight pathogens.
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What are antibodies?
The spleen's red pulp primarily performs this function.
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What is removal of old red blood cells?
A patient develops severe leg swelling after obstruction of the thoracic duct. This occurs because of impaired this process.
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What is lymph drainage?
Lymph enters the bloodstream at these veins.
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What are the subclavian veins?
CD4 is a marker found on this subtype of T cell.
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What are helper T cells?
Activated B cells differentiate into these antibody-secreting cells.
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What are plasma cells?
The thymus is largest during this stage of life.
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What is childhood?
A patient with HIV becomes susceptible to opportunistic infections because of loss of these cells.
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What are CD4⁺ helper T cells?
Lymph flow increases because of contractions of these muscles in vessel walls.
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What are smooth muscles?
A newborn born without a thymus would have severe deficiency of this immune response.
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What is cell-mediated immunity?
B cells are a type of this white blood cell.
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What is a lymphocyte?
The bone marrow is classified as this type of lymphatic organ.
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What is a primary lymphatic organ?
A patient has reduced fat absorption after damage to intestinal lymphatics. Which specialized lymphatic vessels were affected?
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What are lacteals?