Biology of Health and Illness. Factors Which Affect the Normal Functioning of Two Body Systems
Biology of Health and Illness
Factors which affect the normal functioning of two body systems
TASK 1
The body 's first line of defence against pathogens uses mostly physical and chemical barriers such as sweat, skin, tears, mucus, stomach acid, and so on. Our skin and other membranes which line the body passages are fairly effective in keeping most pathogens out of the body. Mucus can trap pathogens, which are then washed away or destroyed by chemicals. Tears, sweat, and saliva have certain chemicals which can kill different pathogens.
Bacterial spores and fungi are naturally present in the environment. The spores are so small they can only be seen by a microscope. However, they play a large role in the decomposition of organic matter in the open, such as breaking down the components of fallen leaves or dead trees. However, when found indoors, bacterial spores pose a serious health risk. The type and harshness of the symptoms of inhaling bacteria are dependent on how much bacteria was inhaled or ingested, and they also vary based upon the person and the person 's sensitivities or allergies.
One of the most common symptoms of inhaling bacteria is experiencing allergic reactions. These symptoms bear a resemblance to those of hay fever; they include sneezing, runny nose and watery eyes that appear red. You may also experience skin rashes, nasal congestive, and sensitivity to light, headaches, and tiredness. People with asthma problems are highly susceptible to attacks which include wheezing, tightening of the chest and difficulty in breathing.
People who have weakened immune systems are more vulnerable to infections caused by the inhalation of bacteria. They attack the eyes, skin and lungs. The first line of defence helps the body’s defence system stop most of the bacterial spores and fungi be inhaled by using the nasal hair and mucus.
If microbes get past your first line of defence, it is up to the second line of defence, your immune system, to
Factors which affect the normal functioning of two body systems
TASK 1
The body 's first line of defence against pathogens uses mostly physical and chemical barriers such as sweat, skin, tears, mucus, stomach acid, and so on. Our skin and other membranes which line the body passages are fairly effective in keeping most pathogens out of the body. Mucus can trap pathogens, which are then washed away or destroyed by chemicals. Tears, sweat, and saliva have certain chemicals which can kill different pathogens.
Bacterial spores and fungi are naturally present in the environment. The spores are so small they can only be seen by a microscope. However, they play a large role in the decomposition of organic matter in the open, such as breaking down the components of fallen leaves or dead trees. However, when found indoors, bacterial spores pose a serious health risk. The type and harshness of the symptoms of inhaling bacteria are dependent on how much bacteria was inhaled or ingested, and they also vary based upon the person and the person 's sensitivities or allergies.
One of the most common symptoms of inhaling bacteria is experiencing allergic reactions. These symptoms bear a resemblance to those of hay fever; they include sneezing, runny nose and watery eyes that appear red. You may also experience skin rashes, nasal congestive, and sensitivity to light, headaches, and tiredness. People with asthma problems are highly susceptible to attacks which include wheezing, tightening of the chest and difficulty in breathing.
People who have weakened immune systems are more vulnerable to infections caused by the inhalation of bacteria. They attack the eyes, skin and lungs. The first line of defence helps the body’s defence system stop most of the bacterial spores and fungi be inhaled by using the nasal hair and mucus.
If microbes get past your first line of defence, it is up to the second line of defence, your immune system, to
Bibliography: Beltina, 2011, Bronchus [online], visited on 29/11/11, Beltna.org, available at http www.beltina.org/health-dictionary/bronchus-definition—function.html The free dictionary, 2010, The free medical dictionary [online], visited on 20/11/11, medical dictionary, available at http://medical-ictionary.thefreedictionary.com/air=sac