Characteristics and Infection of Nematodes Quiz

Nematodes absorb oxygen through their skin via diffusion, where oxygen moves from an area of high concentration to low.
Some Nematodes can undergo cryptobiosis, a process where they alter their metabolism in response to drastic environmental changes, such as freezing or extreme heat.

Ascaris lumbricoides (Ascariasis) is a parasitic worm that can be found in the small intestine, more common in children than adults.
Enterobius vermicularis (Pinworm infection) is a parasitic worm that can live in the large intestine and cause sleeplessness and itching around the anus.
Toxocara canis and T.cati (Toxocariasis) are parasitic roundworms commonly found in the intestines of dogs and cats, and can be transmitted to humans.
Necator americanus and Ancylostoma duodenale (Hookworm infection) are parasites that can affect the lungs, skin, and small intestine.
Trichinella spiralis (Trichinellosis) is a disease that can be acquired by consuming undercooked meat, which releases larvae that encyst in muscles.
Dirofilaria immitis (Heartworm disease) is a serious disease that can cause severe lung disease, heart failure, and death in pets, spread through mosquito bites.

Ringworm is a common infection of the skin and nails caused by fungi (Trichophyton, Microsporum, and Epidermophyton), not an actual worm under the skin.
It commonly affects athletes in contact sports and can occur on the beard, hands, toenails, or fingernails.

After the eradication campaign, only four countries (Chad, Mali, South Sudan, and Ethiopia) reported the disease, with a total of 126 cases reported to WHO in 2014.

Helminth parasites are included in the study of microbiology because they are often identified by looking for microscopic eggs and larvae.
The two major groups of helminth parasites are the roundworms (Nematoda) and the flatworms (Platyhelminthes).
Nematodes are common intestinal parasites often transmitted through undercooked foods, although they are also found in other environments.
Platyhelminths include tapeworms and flukes, which are often transmitted through different means.