Which nematode is known as the "whipworm"?

The nematode known as the "whipworm" is Trichuris trichiura. This name is derived from its unique shape, which resembles a whip, being significantly thinner at one end. Whipworms primarily inhabit the large intestine of humans, where they embed their anterior end into the intestinal mucosa. The infection caused by this parasite can lead to symptoms such as abdominal pain, diarrhea, and in some cases, rectal prolapse, particularly in more severe or chronic cases.

Understanding the distinct morphology and life cycle of Trichuris trichiura is crucial in the field of parasitology, as it aids in the identification and management of whipworm infections. This species is typically transmitted via the fecal-oral route, with infective eggs found in contaminated soil, food, or water, highlighting the importance of sanitation and hygiene in preventing transmission.

Other nematodes mentioned in the options belong to different groups and have distinct characteristics and pathogenic effects, illustrating the diversity within the nematode family and the various ways they affect human health.