What is the common term for Ancylostoma? 

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SSC CGL 2023 Tier-I Official Paper (Held On: 19 Jul 2023 Shift 2)
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  1. Tape worm 
  2. Round worm 
  3. Filaria worm 
  4. Hookworm 

Answer (Detailed Solution Below)

Option 4 : Hookworm 
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Detailed Solution

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The correct answer is Hookworm

Key Points

  •  Ancylostoma:-
    • Ancylostoma is a genus of hookworms, which are parasitic worms.
    • Two species from this genus, Ancylostoma duodenale and Ancylostoma ceylanicum, are common parasites in humans, primarily in parts of Asia, Africa, and southern Europe.
    • The life cycle of these parasites begins when their larvae penetrate human skin.
    • Soil contaminated with human feces often carries these larvae, making sanitation and hygiene crucial factors in preventing infection.
    • Once inside the body, the larvae reach the lungs, ascend the bronchial tree, get swallowed, and eventually settle in the small intestine, where they mature into adult worms.
  • Hookworms:-
    • These are parasitic nematode worms that belong to the species Ancylostoma duodenale and Necator americanus.
    • They are so named because of their hook-like mouthparts, which they use to attach to the wall of the small intestine of their hosts, including humans and some animals.

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Additional Information

  • Tapeworms:-
    • These are a type of parasitic worm that belong to the class Cestoda.
    • They are flat and segmented, resembling a tape or ribbon, which explains their name. They infest the digestive tracts of vertebrates, including humans, and can grow quite long, with some reaching over 20 feet in length.

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  • Roundworms:-
    • These are also known as nematodes, are a type of parasitic worm.
    • They're called "roundworms" because of their cylindrical, thread-like bodies. Roundworms are very diverse, and they can range in size from microscopic to over a meter in length in some cases.

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  • Filarial worms:-
    • These are a type of parasitic roundworm that causes a group of diseases collectively known as filariasis.
    • They are long, thread-like worms transmitted to humans through the bite of a mosquito, which serves as an intermediate host and vector.
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