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Section 12.4 Review
Terms in this set (18)
Describe How your skin, mucous membranes, stomach acid, and tears help prevent harmful bacteria from entering the body.
Skin: bacteria and viruses cannot penetrate the tightly knit cells of the skin
Mucous Membranes: equipped with cilia that sweep pathogens to the throat where they can be expelled from the body by sneezing and coughing
Stomach Acid: kills most of the bacteria from the food we eat.
Tears: contain lysozymes that kill bacteria by destroying their cell walls
How do the "friendly" bacteria of your digestive tract help protect you from pathogens?
they help break down some sugar and cellulose that are breeding grounds for pathogens
Name two ways that a fever helps your immune system fight invading pathogens.
1: speeds up body's cellular activities
2: hindering the growth of some pathogens reproduce more slowly at higher temperatures
Describe three major types of immunity and their causes.
Acquired Immunity: acquired as a result of a previous encounter with a pathogen (either by getting the actual disease or by vaccination)
Inborn Immunity: given by parents to child through bloodstream
Species Immunity: pathogens only infect certain types of organisms
What are the three immune-deficiency diseases mentioned in text? Which one is thought to be a communicable infectious disease?
XLA, SCID, AIDS
What is HIV? With what well-known syndrome is this virus associated?
HIV: human immunodeficiency virus; infects helper and inflammatory T cells
List some ways mentioned in text that can greatly reduce a person's risk of becoming infected with HIV.
not using drugs, doing sodomy, prostitution, or extramarital sex.
How do vaccines and antibiotics help your body fight diseases?
they make your body think you have the virus so your body reacts to it.
Explain the importance of proper diet, rest, and exercise in preventing disease.
you need all of those to prevent disease.
How can following God's commands concerning morality and self-control lead to a healthier life?
our bodies are temples, so we should take good care of them.
acquired immune deficiency syndrome; caused by HIV
substances produced by bacteria, molds, and certain other organisms that are effective in stopping the growth of bacteria.
any procedure in which chemical compounds are used to treat a disease
elevated body temp; effective weapon against many bacteria, as well as against some viruses
resistance to a particular pathogen
An enzyme, present in mucus, tears, and saliva, that destroys bacteria by dissolving their cell walls.
blood extracts that contain antibodies against particular pathogens
a substance that simulates your body to develop an acquired immunity to disease