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

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

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