Welcome to JAAN's science class!!

Big hi to all of you! I'm an undergraduate following a Bsc in bioscience. Trust me I know the feeling of surfing around the net for ages and getting nothing in return! Or getting something worthless for the time we spent surfing. So I started this blog adding the science stuff I have noted which I think might help someone in their home work. Ok then enjoy!

21 November 2011

General facts of parasitic nematodes:- Pin worm, giant round worm, whip worm, pork worm, hook worm



Enterobius sp.
image via human-healths.com
Common name: Pin worm/thread worm/ seat worm
Disease: Enterobiasis (symptoms:- itching in the preanal area)
Host: Human
Habitat: Small intestine
Infective stage: Eggs
Transmission: Ingesting eggs
Parasitic adaptations: Small, sticky, translucent eggs, cuticle

File:Enterobius vermicularis LifeCycle.gif
Enterobiu sp -Life cycle 
Trichuris trichuira

image via plpnemweb.ucdavis.edu
Common name: Whip worm/tap wrom
Disease: Trichuriasis ( Symptoms: Diarrhea, anemia)
Host: Human
Habitat: Colon
Infective Stage: Embryonated eggs
Transmission: Ingesting eggs
Parasitic adaptations: Long slender tapered body, cuticle



Trichinella sp

image via human-healths.com
  
Common name: Pork worm
Disease: Trichinosis (Symptoms: nausea, diarrhea, vomiting, fever)
Host: Human, pig, bear, rat
Habitat: Intestine
Infective stage: Cysts (larva)
Transmission: Eating uncooked pork, 
Parasitic adaptations: Long slender body, cuticle

image via dpd.cdc.gov

Ascaris sp

image via e-cleansing.com
Common name: Giant round worm
Disease: Ascariasis (Symptoms: Diarrhea, cough, nausea)
Host: Human
Habitat: Intestine
Infective stage: Embryonated eggs ( containing larva)
Transmission: Ingesting eggs
Parasitic adaptations: Long slender body, cuticle, lipid cover around the eggs which is resistant to abrasion and chemicals

File:Ascariasis LifeCycle - CDC Division of Parasitic Diseases.gif


Ancylostoma sp

image via plpnemweb.ucdavis.edu

Common name: Hook worm
Disease: Protein deficiency, anemia, cough
Host: Human, cat
Habitat: Intestine
Infective stage: Filari form larva
Transmission: Penetrating the intact skin of the host
Parasitic adaptations: Dental plates in mouth, slender body, cuticle