أسئلة ريتين الرابعة بارا دمياط (قبل التعديل)

The three body regions of insects are the head, thorax, and abdomen.

Arthropods transmit diseases biologically by requiring a blood meal for egg development, thus only females transmit diseases.

Entomophobia is an abnormal fear of insects, especially spiders.

<p>A crayfish has two body regions: the cephalothorax and the abdomen.</p> Signup and view all the answers

<p>Frogs and fish, such as Gambusia affinis, are natural enemies of mosquito larvae.</p> Signup and view all the answers

<p>The main stages of the mosquito life cycle are Egg, Larva, Pupa, and Adult.</p> Signup and view all the answers

<p>Dermatitis can occur as a result of insect bites from pests like lice and mosquitoes.</p> Signup and view all the answers

<p>Eliminating water collections is a key measure to eliminate mosquito breeding places.</p> Signup and view all the answers

<p>Frequent bathing, boiling clothes, and using insecticides like DDT.</p> Signup and view all the answers

<p>It is an obligatory ectoparasite that can lead to pediculosis but does not transmit pathogens.</p> Signup and view all the answers

<p>Primarily through contact with infested individuals during sexual intercourse or through contaminated clothes.</p> Signup and view all the answers

<p>It undergoes three stages: Egg, Nymph, and Adult.</p> Signup and view all the answers

<p>Malathion, Lindane ointment, and synthetic pyrethrin sprays like Licid and RID.</p> Signup and view all the answers

<p>It manifests as dermatitis, skin thickening, and hyperpigmentation due to saliva exposure.</p> Signup and view all the answers

<p>Head lice do not transmit pathogens, thus posing minimal health risk.</p> Signup and view all the answers

<p>Use forceps for removal along with yellow oxide of mercury ointment.</p> Signup and view all the answers

<p>Egg, Larva, Pupa, Adult.</p> Signup and view all the answers

<p>Plague.</p> Signup and view all the answers

<p>It occurs due to toxins in the tick's saliva blocking neuromuscular junctions, and paralysis disappears after removal of the tick.</p> Signup and view all the answers

<p>Ixodidae (hard ticks) and Argasidae (soft ticks).</p> Signup and view all the answers

<p>It lives in intracutaneous tunnels in areas like fingers, toes, and groin, where it burrows and deposits eggs.</p> Signup and view all the answers

<p>By spraying insecticides on adults and larvae, treating infected pets, and spraying carpets and floors.</p> Signup and view all the answers

<p>Itching followed by secondary bacterial infection.</p> Signup and view all the answers

<p>Lyme disease, which can cause severe health complications and long-term effects if untreated.</p> Signup and view all the answers

<p>Severe itching, scratches, vesicles, and pustules are primary symptoms.</p> Signup and view all the answers

<p>Diagnosis can involve observing the severe itching pattern, skin distribution of lesions, and microscopic examination of skin scrapings.</p> Signup and view all the answers

<p>Treatment options include scabicidal applications like Lindane 1% and oral or topical Ivermectin.</p> Signup and view all the answers

<p>Infected individuals should maintain personal hygiene, frequently bathe, and avoid close contact with others.</p> Signup and view all the answers

<p>Untreated scabies can lead to secondary bacterial infections, vesicles, and pustules.</p> Signup and view all the answers

<p>Preventive measures include thorough cleaning of beds and furniture and using vacuum cleaners.</p> Signup and view all the answers

<p>Apply a tourniquet, incise the wound, and apply potassium permanganate to oxidize the venom.</p> Signup and view all the answers

<p>Personal hygiene, including frequent bathing, reduces the potential for reinfestation and further transmission.</p> Signup and view all the answers

<p>Insects have three body regions (head, thorax, abdomen) and six legs, while spiders have two body regions (cephalothorax and abdomen) and eight legs.</p> Signup and view all the answers

<p>Female arthropods require a blood meal for egg development, which makes them responsible for transmitting diseases to humans.</p> Signup and view all the answers

<p>Malaria and dengue fever are transmitted by mosquitoes, commonly causing fever, chills, and fatigue in malaria, and high fever, severe headaches, and joint pain in dengue.</p> Signup and view all the answers

<p>The mosquito lifecycle consists of four stages: egg, larva, pupa, and adult, with larvae feeding on organic matter and pupae capable of breathing in water.</p> Signup and view all the answers

<p>Organic matter serves as a food source for mosquito larvae, which consume it while suspended or floating in water.</p> Signup and view all the answers

<p>Methods include eliminating breeding places, using mosquito nets for protection, and applying insecticides to reduce their numbers.</p> Signup and view all the answers

<p>Encountering arthropods can lead to entomophobia, an abnormal fear of insects, and increased anxiety or distress in affected individuals.</p> Signup and view all the answers

<p>Mechanical transmission occurs when arthropods act as passive carriers of pathogens, either through direct inoculation or contamination without the pathogens developing in them.</p> Signup and view all the answers

<p>Body lice are vectors for diseases such as epidemic typhus, epidemic relapsing fever, and trench fever.</p> Signup and view all the answers

<p>Effective measures include using insecticides like Malathion or Lindane ointments, and sprays such as Licid, Nix, or RID.</p> Signup and view all the answers

<p>Avoiding contact with infested individuals and ensuring proper laundering of clothes can help prevent transmission.</p> Signup and view all the answers

<p>Pediculus humanus is small, wingless, and has 3 pairs of legs, measuring 2-4 mm.</p> Signup and view all the answers

<p>Symptoms include dermatitis, thickened skin, and hyperpigmentation due to prolonged exposure to saliva.</p> Signup and view all the answers

<p>Health education and sanitation measures help eliminate breeding places for insects, reducing disease transmission.</p> Signup and view all the answers

<p>Insecticides like DDT are used to kill both larvae and adult body lice effectively.</p> Signup and view all the answers

<p>Phthirus pubis can cause skin irritation that presents as bluish patches on the affected areas.</p> Signup and view all the answers

<p>Ticks undergo a life cycle of Egg → Larva → Nymph → Adult, whereas fleas progress through Egg → Larva → Pupa → Adult.</p> Signup and view all the answers

<p>Fleas act as vectors that transmit the bacteria causing endemic typhus fever to humans through their bites.</p> Signup and view all the answers

<p>Control of tick populations involves spraying insecticides on floors, walls, and areas where ticks are likely to hide.</p> Signup and view all the answers

<p>The toxin in tick saliva blocks neuro-muscular junctions, leading to paralysis, which reverses after the tick is removed.</p> Signup and view all the answers

<p>Female scabies mites burrow into the skin, creating tunnels where they deposit eggs, which hatch into larvae.</p> Signup and view all the answers

<p>Rocky Mountain spotted fever and Lyme disease are two diseases transmitted by ticks, leading to serious health issues and possible long-term effects.</p> Signup and view all the answers

<p>Itching from scabies intensifies at night due to warmth and increased skin sensitivity, making it particularly bothersome.</p> Signup and view all the answers

<p>Flea dermatitis in pets causes severe itching and can lead to secondary bacterial infections.</p> Signup and view all the answers

<p>The tunnels are tortuous and dark in color due to toxins and excretions from the mites.</p> Signup and view all the answers

<p>Crusted Scabies is a severe form of scabies infestation characterized by high numbers of mites in keratotic lesions, making it highly infective, especially in immunosuppressed patients.</p> Signup and view all the answers

<p>The clinical presentation includes severe itching, especially at night, along with visible scratches, vesicles, and pustules on the skin.</p> Signup and view all the answers

<p>Skin scrapings from the tunnels or lesions are collected and examined rapidly under a microscope.</p> Signup and view all the answers

<p>Common treatments include scabicidal applications like Lindane 1%, Pyrethrum cream 5%, and Ivermectin administered either orally or topically.</p> Signup and view all the answers

<p>Frequent bathing, washing infested clothing and bed linens, and avoiding contact with infested individuals can significantly reduce the spread of scabies.</p> Signup and view all the answers

<p>Apply a tourniquet proximal to the sting site, incise the wound, and apply potassium permanganate to oxidize the venom.</p> Signup and view all the answers

<p>Dust mites produce allergens that can trigger allergic rhinitis, conjunctivitis, and bronchial asthma.</p> Signup and view all the answers