Rodents & Snakes
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Questions and Answers

What is the main feature of a rodent's teeth?

  • A pair of canines
  • A pair of incisors (correct)
  • A pair of premolars
  • A pair of molars

    • What is the sub-order to which mouse-shaped rodents belong?

  • Sciuromorpha
  • Myomorph (correct)
  • Hystrichomorpha
  • Rodentia

    • Which of the following diseases is NOT transmitted from rodents?

  • Typhus
  • Leptospirosis
  • Trichiniasis
  • Malaria (correct)

    • Which of the following is a flea that sucks blood from wild rodents?

    <p>Xenopsylla</p> Signup and view all the answers

    What is the name of the rodent species that can transmit diseases to humans?

    <p>Rattus norvegicus</p> Signup and view all the answers

    What is the medical importance of rodents?

    <p>Reservoir for few diseases</p> Signup and view all the answers

    What is the transmission method of diseases from rodents to humans?

    <p>All of the above</p> Signup and view all the answers

    What is the characteristic of rodents that live around humans?

    <p>They are omnivorous</p> Signup and view all the answers

    What is a distinct characteristic of the feces of Rattus rattus diardii?

    <p>Crescent-shaped and soft</p> Signup and view all the answers

    What is unique about the mating habits of rats?

    <p>They are able to reproduce throughout the year</p> Signup and view all the answers

    How long is the pregnancy period of rats?

    <p>19-24 days</p> Signup and view all the answers

    What is a characteristic of Suncus murinus?

    <p>Lives in houses</p> Signup and view all the answers

    What do rats use to mark their territory?

    <p>Urine</p> Signup and view all the answers

    What is a factor that contributes to the high reproductive rate of rats?

    <p>Early sex maturity</p> Signup and view all the answers

    How many infants can a rat have per pregnancy?

    <p>5-7</p> Signup and view all the answers

    Which species of rat is known to be a good swimmer?

    <p>Rattus norvegicus</p> Signup and view all the answers

    What is the effect of toxic substances on living cells?

    <p>Irreversible damage</p> Signup and view all the answers

    What is the consequence of severe bleeding?

    <p>Severe pain</p> Signup and view all the answers

    What is the effect of paralysis on the body?

    <p>Impaired movement</p> Signup and view all the answers

    What is the effect of myoglobinuria on the kidneys?

    <p>Impaired kidney function</p> Signup and view all the answers

    What is the consequence of RBC destruction?

    <p>Decreased oxygen delivery</p> Signup and view all the answers

    What is the effect of disruption of blood clotting?

    <p>Impaired wound healing</p> Signup and view all the answers

    What is the effect of skeletal muscle fibre damage?

    <p>Impaired muscle function</p> Signup and view all the answers

    What is the effect of nervous system toxicity?

    <p>Impaired nervous system function</p> Signup and view all the answers

    What is the primary purpose of using rat traps in solid waste management?

    <p>To prevent rodents from spreading diseases</p> Signup and view all the answers

    Why is it important to close the drain in a building?

    <p>To prevent rodents from entering</p> Signup and view all the answers

    What is the recommended way to use baits in solid waste management?

    <p>To use them at the route</p> Signup and view all the answers

    What is the purpose of using glue in solid waste management?

    <p>To use at papan plywood</p> Signup and view all the answers

    Why is it important to store raw materials well in solid waste management?

    <p>To prevent contamination</p> Signup and view all the answers

    What is the benefit of using rat traps in confined spaces?

    <p>To prevent rodents from spreading diseases</p> Signup and view all the answers

    What is the purpose of using plywood in solid waste management?

    <p>To use with glue</p> Signup and view all the answers

    Why is it important to collect waste regularly in solid waste management?

    <p>To prevent contamination</p> Signup and view all the answers

    What is the main characteristic of a macular eruption?

    <p>It is a skin rash that excludes the face, hand, and feet</p> Signup and view all the answers

    Which of the following symptoms is associated with Hantavirus Pulmonary Syndrome (HPS)?

    <p>Muscle pain (myalgia)</p> Signup and view all the answers

    What is the primary complication of Hemorrhagic Fever with Renal Syndrome (HFRS)?

    <p>Renal failure</p> Signup and view all the answers

    Which of the following symptoms is NOT typically associated with Hantavirus infection?

    <p>Diarrhea</p> Signup and view all the answers

    What is the most severe outcome of Hantavirus infection?

    <p>Coma</p> Signup and view all the answers

    Which of the following is a common symptom of both HFRS and HPS?

    <p>Fever</p> Signup and view all the answers

    What is the primary difference between HFRS and HPS?

    <p>HFRS affects the kidneys, while HPS affects the lungs</p> Signup and view all the answers

    Which of the following symptoms is commonly associated with the later stages of Hantavirus infection?

    <p>Hemorrhage</p> Signup and view all the answers

    Study Notes

    Rodents

    • Rodents are mammals that live around humans, found all over the world, and are characterized by a pair of incisors that are used for biting.
    • They are classified into three sub-orders: Myomorph (mouse-shaped), Sciuromorpha (squirrel-shaped), and Hystrichomorpha (porcupine-shaped).

    Medical Importance

    • Rodents are reservoirs for several diseases, including typhus, plague, leptospirosis, trichiniasis, and others.
    • Xenopsylla and Stenocephalides are fleas that are commonly found on rodents and can transmit diseases to humans.

    Characteristics of Rodents

    • Rodents have a tail that is shorter than their body.
    • They are good swimmers and live in ground burrows.
    • Their feces are cresent-shaped and soft.

    Rattus norvegicus (Brown Rat)

    • Also known as the big rat, it has a tail that is shorter than its body.
    • It is a good swimmer and lives in ground burrows.
    • Its feces are cresent-shaped and soft.

    Rattus rattus diardii (House Rat)

    • Also known as the house rat, it is smaller than the brown rat.
    • It has a tail that is longer than its body.
    • It lives in houses and its feces are sausage-shaped, hard, and scattered.

    Suncus murinus (Asian House Rat)

    • It is a small rodent that lives in houses and marks its territory with urine.
    • Its feces are soft and scattered.

    Biology of Rats

    • Rats have a high reproduction rate due to factors such as early sex maturity, short pregnancy period, and ability to reproduce throughout the year.
    • They can have 15-7 infants per pregnancy.

    Symptoms of Hantavirus and HPS

    • Hantavirus and HPS (Hemorrhagic fever with Renal Syndrome) symptoms include high fever, cough, headache, and hemorrhagic fever.
    • Other symptoms include macular eruption, spread of rash all over the body, and renal failure.

    Control Measures

    • Control measures include using rat traps, baits, and solid waste management.
    • Regularly collecting waste, storing raw materials, and using plastic and glue can help prevent rodent infestations.
    • Properly closing drains and building maintenance can also help prevent rodent infestations.

    Toxicity of Rodents

    • Rodents can cause toxicity to the nervous system, disrupt blood clotting, and cause irreversible damage to living cells.
    • Symptoms of rodent bites include swelling, severe pain, and bleeding.
    • Other symptoms include paralysis, myoglobunuria, and presence of blood in the urine.

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    Description

    This quiz covers the basics of rodents, including their characteristics and classification. Learn about these mammals and their features.

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