1 / 6

### Understanding Infectious vs. Non-Infectious Diseases and Body Defenses ###

This overview explores the body's defenses against pathogens, detailing both internal and external defenses. Internal defenses include white blood cells, T-cells, and B-cells, while external defenses consist of skin, tears, and mucous membranes. The immune system’s mechanisms, including inflammation and fever, are discussed. The difference between infectious and non-infectious diseases is highlighted, with infectious diseases being caused by pathogens like bacteria and viruses, while non-infectious diseases stem from genetic or environmental factors. The assignment includes reading and questionnaire activities. ###

hisano
Télécharger la présentation

### Understanding Infectious vs. Non-Infectious Diseases and Body Defenses ###

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Infectious Disease

  2. Recall Prior Knowledge – • How do the body’s defenses prevent pathogens from entering the body? • Through internal & external defenses • Internal – white blood cells, T/B cells • External – tears, skin, mucous membranes, hair, nails

  3. Recall Prior Knowledge • How does the immune system attack pathogens? • Inflammation – fever • T cells attack and B cells remember so it doesn’t get sick again

  4. Disease Overview – compare non-infectious and infectious disease • Noninfectious diseases that CANNOT be passed on from person to person • Caused by genetic or environmental factors or mutagens • Infectious diseases passes from person to person • Caused by pathogens, including bacteria, fungi, parasites, and viruses

  5. Causes of Infectious Diseases • Parasites can cause disease • lice • Infectious fungi can cause skin infections • Ring worm, athletes foot • Viral diseases are spread easily • Colds, flus, HIV/AIDS • Infectious bacteria spreads easily • Different types of bacteria causes strep, bronchitis, tonsillitis, tuberculosis, sinus infections, food poisoning • Each pathogen causes a specific disease

  6. Homework • Read pgs 114 – 117 and answer questions (handout) • Draw a table with 3 columns – • Column 1 – diseases I’ve had • Column 2 – diseases family members have had • Column 3 – diseases I’ve never had but have heard of

More Related