Sense Organs of Earthworm
Earthworms have well-developed sense organs or receptor organs. Simple in structures. Reacts to a number of stimuli with the help of 3 types of sense organs: epidermal receptor, buccal receptor, … Read more
Laxmi Neupane
Protozoa- Definition, Characteristics, Classification, Examples
Protozoa Definition Protozoa may be defined as “microscopic acellular animalcules existing singly or in colonies, without tissue and organs, having one or more nuclei”. Some of the characteristics are: There … Read more
Digestive System of Earthworms
The digestive system of earthworms consists of the alimentary canal and the digestive glands. Earthworm Alimentary Canal Parts of the alimentary canal No. of the segment in the body Mouth … Read more
Giardia duodenalis (Giardia lamblia or Giardia intestinalis)
Introduction Giardia duodenalis is also known as Giardia lamblia and Giardia intestinalis. It is a flagellated unicellular eukaryotic microorganism that colonizes and reproduces in the small intestine. It commonly causes … Read more
Strongyloides stercoralis (Parasitic Roundworm)- A Threadworm
Strongyloides stercoralis is a parasitic roundworm that causes strongyloidiasis. It is commonly called a threadworm in the US. It is the smallest nematode known to cause infection in humans. They … Read more
Ascaris lumbricoides- Life cycle, Pathogenicity, Clinical Manifestation
Life cycle of Ascaris lumbricoides In the life cycle of Ascaris, there is no secondary host. The life cycle of Ascaris is monogenetic as it involves only one host i.e. … Read more
Fasciola hepatica- Common liver fluke or Sheep liver fluke
Fasciola hepatica is also known as a common liver fluke or sheep liver fluke. It causes hepatic fibrosis in ruminants and humans known as Fascioliasis. History and distribution of Fasciola … Read more
Leishmania donovani- Habitat, Morphology and Life Cycle
Systematic position Phylum: Protozoa Subphylum: Sacromastigophora Superclass: Mastigophora Class: Zoomastigophora Order: Kinetoplastida Genus: Leishmania Species: donovani Discovery and Distribution The species of Leishmania donovani was reported simultaneously by Leishmania from … Read more
Taenia solium- Classification, Habitat, Structure, Body wall
Classification of Taenia solium Phylum Platyhelminthes Class Cestoda Subclass Eucestoda Order Taenioidea Genus Taenia Species solium Habits and Habitat of Taenia solium Taenia solium, also known as pork tapeworm, is … Read more
Cysticercosis- Clinical manifestations, diagnosis, treatment
What is Cysticercosis? Cysticercosis refers to the tissue infection caused by the metacestode, or larval stage, of Taenia solium. It is acquired by the accidental ingestion of T. solium eggs. … Read more