0
The skin is the primary barrier that prevents infection. It forms a tight lattice of cells that do not allow (most) bacteria, viruses, or fungi through. Even water cannot pass easily. If the skin breaks, resident macrophages (immune cells) will try to stop or slow down the attackers. If skin is broken deep enough to rupture a vessel, the blood flowing out of the body will try to wash the bacteria out of the body.
Where there are openings to the inside of the body (mouth, nose, ears) there are mucous linings in place to prevent microbes from getting in. Cilia (microscopic fingers) move mucous in the lungs upwards constantly sending bacteria trapped in the mucous layer back up the way they came.
For those bacteria that try to come in through the stomach, a concentrated environment of hydrochloric acid found there will be toxic to most of them.
The brain has a special additional barrier called the blood brain barrier that is a junction even tighter than the skin to keep microbes out.
The immune system is an important second line of defense.
Add your answer:
Earn +20 pts
Are barriers good or bad things?
Barriers can serve both positive and negative purposes. In some cases, barriers protect us from harm or help maintain boundaries. However, they can also prevent growth and hinder progress if they limit our potential or restrict us from opportunities. It's important to assess barriers on a case-by-case basis to determine their impact.
What major disease epidemic were in US cities in the late 1800s?
Typhoid
What kinds of of legal barriers are there for third parties in the US?
barriers
What two reasons that the acid in your stomach is beneficial?
It aids in digestionIt protect us from some microbes that are pathogens. Some disease causing microbes are present in contaminated or food that are not properly treated. The acid pH of the stomach kills those microbes and protect us from disease.
How do your bodies protect us from diseases?
Anti bodies they protect our bodies from diseases that's why we get vaccinated ,, To make Anti bodies for the disease that we were injected for :) hope that helps
What is the definition of psychological barriers?
Psychological or mental barriers are the barriers which we create in our minds, or which we have learned from others, that prevent us from communicating effectively.
Does haiti have trade barriers?
not with the us
What are the major causes of death for people of all ages?
The top four major causes of death for people of all ages worldwide are cardiovascular disease, infectious and parasitic diseases, Heart disease, and cancer. i the US, the leading cause of death is heart disease.
What are four major causes of death for people of all ages?
The top four major causes of death for people of all ages worldwide are cardiovascular disease, infectious and parasitic diseases, Heart disease, and cancer. i the US, the leading cause of death is heart disease.
What are the four major causes of death for people of all ages?
The top four major causes of death for people of all ages worldwide are cardiovascular disease, infectious and parasitic diseases, heart disease, and cancer. i the US, the leading cause of death is heart disease.
What are two ways the skin helps protect us from disease?
The different layers of skin literally block bacteria like a forefield
How do doctors use the immune response to protect us from disease?
The take a shot gun and shoot you into pieces.
