Molecular Communications in the Immune System
Cells of the immune system have profound immunoregulatory influences on each other. This regulation is mediated in large part by pote…
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Reticuloendothelial System (RES)
The second major cellular system, the RES, ( Fig. 1-1 ) harbors macrophages, which are cells that play major roles in 1) …
Lymphoid System
The lymphoid system consists of organs that house 1) T and B cells that are responsible for antigen-specific immunity and 2) NK c…
Organization/Components/Functions
The production, maturation, and function of cells of the immune system occur to a great extent in two overlapping organ systems, 1) t…
Evolution of the Immune System
The human defense system consists of factors that provide innate and acquired immunity against microorganisms. The system evolved fro…
Ascaris lumbricoides
Causal Agent: Ascaris lumbricoides is the largest nematode (roundworm) parasitizing the human intestine. (Adult females: 20 to 35 cm; …
Ascariasis
Causal Agent: Ascaris lumbricoides is the largest nematode (roundworm) parasitizing the human intestine. (Adult females: 20 to 35 cm; …