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Questions and Answers
What is the primary focus of preventive medicine?
What is the primary focus of preventive medicine?
- To understand the causes of disease (correct)
- To rely on genetic factors of health
- To provide expensive medicines
- To cure existing diseases (correct)
Which of the following is NOT classified as a group of microbes?
Which of the following is NOT classified as a group of microbes?
- Fungi
- Mites (correct)
- Viruses
- Bacteria
How do pathogens affect the body?
How do pathogens affect the body?
- They store energy for the body
- They multiply and produce toxins (correct)
- They assist in digestion
- They absorb nutrients from food
What distinguishes a parasite from other organisms?
What distinguishes a parasite from other organisms?
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Which type of parasitic worm is known to cause more serious infections in humans?
Which type of parasitic worm is known to cause more serious infections in humans?
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Study Notes
Preventive Medicine
- Preventing illness is crucial, as treatments can be expensive, ineffective, or non-existent.
- Understanding the causes of disease is critical for effective prevention.
Infectious Diseases
- Infectious diseases spread from person to person.
- They are caused by microbes, tiny living organisms invisible to the naked eye.
- Microbes exist in the air, soil, water, and in plants, animals, and humans.
- While many microbes are harmless, some are pathogenic (disease-causing).
- There are four main types of microbes: viruses, bacteria, protozoa, and fungi.
- When microbes enter the body, they multiply rapidly, causing disruptions and producing toxins.
Parasitic Worms
- Parasitic worms live on or inside a larger organism, obtaining nourishment from the host.
- Examples of parasitic worms affecting humans include threadworm, roundworm, ascaris, tapeworm, and hookworm.
- Some parasitic worms, such as threadworm, roundworm, and ascaris, are not typically serious.
- Tapeworm and hookworm infections are more concerning.
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