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Questions and Answers
What is the main characteristic of a helminth?
What is the main characteristic of a helminth?
- Infects primarily the scalp
- Invades deep tissues of the hair, nails, and skin
- Single-celled organism
- Derived its nourishment from the host (correct)
How do helminth eggs typically enter the body of a human?
How do helminth eggs typically enter the body of a human?
- Through breathing contaminated air
- Through the eyes
- Via direct skin contact
- Through the mouth, nose, and anus (correct)
Where do helminth eggs usually lodge once inside the body?
Where do helminth eggs usually lodge once inside the body?
- Brain
- Lungs
- Liver
- Intestines (correct)
What is the study of parasitic worms called?
What is the study of parasitic worms called?
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Where do helminths derive their nourishment from?
Where do helminths derive their nourishment from?
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Study Notes
Roundworms
- Live in the intestines
- Eggs enter the body through contaminated water, food, fingers, and hands that have touched a contaminated object
- Symptoms: fatigue, weight loss, irritability, poor appetite, abdominal pain, and diarrhea
- Treatment with medication results in cure
Pinworms
- Cause symptoms such as anal itching, pale skin, and stomach discomfort
- Can enter the vagina, causing discharge and itching
- Do not cause serious complications
- Treatment with medication results in a cure within days
Trichina Spiralis (Trichinosis)
- Lives in the intestines
- Eggs enter the body via raw or undercooked pork, sausage, or bear meat
- Eggs hatch, mature, and migrate to other parts of the body through the bloodstream and lymphatic system
- Symptoms: vomiting, diarrhea, abdominal cramps, high fever, puffiness of the face, and muscle pain
Tapeworms
- Live in the intestines
- Eggs enter the body via raw or uncooked beef
- Symptoms are usually absent, but can include abdominal pain, fatigue, weight loss, and diarrhea
- Treatment with medication results in cure
Flukes
- Live in different locations in the body, including intestines, bladder, rectum, liver, spleen, lungs, and veins
- Mature inside freshwater snails and enter the body by penetrating the skin
- Can cause various symptoms depending on the location in the body
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