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…
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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; …
Ancylostoma ceylanicum
Causal Agents: The human hookworms include the nematode species, Ancylostoma duodenale and Necator americanus . A larger group of hookworms in…
Ancylostomiasis (Hookworm)
Causal Agents: The human hookworms include the nematode species, Ancylostoma duodenale and Necator americanus . A larger group of hookwor…