Dictionary > Necator americanus

Necator americanus

Definition
noun
A parasitic worm of humans and other animals and is regarded as the New World hookworm
Supplement
Necator americanus is a species of hookworm that infests humans as well as other animals such as cats and dogs. However, humans are its most common definitive host. The species is referred to as the New World hookworm of humans. Similar to other hookworms such as Ancylostoma duodenale, the species belongs to phylum Nematoda. Both Ancylostoma duodenale and Necator americanus attach to the intestinal wall of their host and suck blood. Thus, their presence in the intestines causes diarrhea, anorexia, and iron-deficiency anaemia. They are also similar in morphology although Necator americanus is smaller than Ancylostoma duodenale. Necator americanus has two cutting plates in the buccal capsule. It also has a more defined hook shape than Ancylostoma duodenale.1 The infestation with Necator americanus is referred to as necatoriasis. It is commonly found in moist tropics and subtropics such as in Africa, India, Asia, China, and Central America.
Scientific classification:

  • Kingdom: Animalia
  • Phylum: Nematoda
  • Class: Secernentea
  • Order: Strongylida
  • Family: Ancylostomatidae
  • Genus: Necator
  • Species: N. americanus

Other common name(s):

  • New World hookworm
  • See also:

    Reference(s):

    1 Ancylostoma/Necator. Retrieved from ://parasite.org.au/para-site/text/ancylostoma-necator-text.html.


    You will also like...

    Chromosomes X and Y and Sex Determination
    Chromosomes X and Y and Sex Determination

    This tutorial looks at sex determination via the sex chromosomes, X and Y. Read it to get more info on X and Y chromosom..

    Human Nervous System
    The Human Nervous System

    The nervous system is essentially a biological information highway. This tutorial gives an overview of the nervous syste..

    Freshwater lake ecosystem
    Freshwater Producers and Consumers

    Freshwater ecosystem is comprised of four major constituents, namely elements and compounds, plants, consumers, and deco..

    Digestion and Absorption of Food
    Digestion and Absorption of Food

    The gastrointestinal system breaks down particles of ingested food into molecular forms by enzymes through digestion and..

    Hormone Production
    Hormone Production

    Hormones are chemical messengers produced by specialized glands and they were produced by switching on the genes designe..

    Plant Water Regulation
    Plant Water Regulation

    Plants need to regulate water in order to stay upright and structurally stable. Find out the different evolutionary adap..

    Related Articles...

    No related articles found

    See all Related Topics