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Stack #4572660
| Question | Answer |
|---|---|
| The science that deals with organisms living in the human body (the host) and the medical significance of this host-parasite relationship. | Medical Parasitology |
| A living organism which takes its nourishment and other needs from a host. | Parasite |
| A parasite completely dependent on the host during a segment or all of its life cycle. | Obligate Parasite |
| An organism that exhibits both parasitic and non-parasitic modes of living and does not absolutely depend on the parasitic way of life, but is capable of adapting to it. | Facultative Parasite |
| Occurs when a parasite attacks an unnatural host and survives. | Accidental Parasite |
| A parasite that wanders into an organ in which it is not usually found. | Erratic Parasite |
| Parasites that do not ordinarily produce disease in healthy individuals but do cause illness in individuals with impaired defense mechanisms. | Opportunistic Parasite |
| A host that harbors a parasite in the adult stage or where the parasite undergoes a sexual method of reproduction. | Definitive Host |
| Harbors the larval stages of the parasite or where an asexual cycle of development takes place. | Intermediate Host |
| A host that serves as a temporary refuge and vehicle for reaching an obligatory host, but is not necessary for the completion of the parasite's life cycle. | Paratenic Host |
| A host that makes the parasite available for transmission to another host and is usually not affected by the infection. | Reservoir Host |
| A host that is naturally infected with certain species of parasite. | Natural Host |
| A host that is under normal circumstances not infected with the parasite. | Accidental Host |
| Any organism that spends a portion or all of its life cycle intimately associated with another organism of a different species. | Symbiont |
| The relationship between a Symbiont and another organism. | Symbiosis |
| An association in which both partners are metabolically dependent upon each other, and one cannot live without the help of the other, with none of the partners suffering any harm. | Mutualism |
| An association in which the commensal takes the benefit without causing injury to the host. | Commensalism |
| An association where one of the partners is harmed and the other lives at the expense of the other. | Parasitism |
| Damage inflicted by a parasite by means of pressure as it grows larger, e.g., a Hydatid cyst causing blockage of ducts. | Mechanical Injury |
| Parasite produces disease by competing with the host for nutrients, fluids, and metabolites. | Deprivation of Nutrients |
| Tissue damage caused by the immunological response of the host, e.g., nephritic syndrome following Plasmodium infections. | Immunological Reaction |
| Excessive proliferation of certain tissues due to invasion by some parasites, causing tissue damage, e.g., fibrosis of the liver after deposition of Schistosoma ova. | Tissue Proliferation |
| Includes size, shape, color, and position of different organelles in different parasites at various stages of their development. | Morphology |
| The requirement of a specific host for a parasite, e.g., Ancylostoma duodenale requires man. | Host Specificity |
| The route followed by a parasite from the time of entry to the host to exit, including the extracorporeal (outside the host) life. | Life Cycle |
| A life cycle where only one host is involved. | Simple Life Cycle |
| A life cycle involving one or more intermediate hosts. | Complex Life Cycle |
| A perfect host-parasite relationship where tissue destruction is balanced with the host's tissue repair, and they live harmoniously. | Carrier State |
| An imperfect host-parasite relationship where the parasite dominates the upper hand, resulting from lower host resistance or higher parasite pathogenicity. | Disease State |
| Occurs when the host takes the upper hand. | Parasite Destruction |
Created by:
Starwitness