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Human skin - Wikipedia


The human skin is the outer covering of the body. In humans, it is the largest organ of the ... Severely damaged skin will try to heal by forming scar tissue. This is ... This keratinized layer of s...

The body's first line of defence | Sciencelearn Hub


Nov 2, 2010 ... The first line of defence includes your skin, tears, mucus, cilia, stomach acid, urine ... Your body has a two-line defence system against pathogens (germs) that make you sick. ... Your urine flow flushes out pathogens from the bladder area. Skin, tears and mucus help to protect us against invading pathogens.

How does my nose protect me from infections? - Healthy Nose ...


The nose is the body's first line of defense against airborne invaders, so it ... keeping anything from reaching the breathing passages and gaining access to the bloodstream. ... As always, you should consult with your healthcare provider about your ... All About Ear Infections 1:38 ... Q Is it dangerous to pull out nose hairs?

Barriers to Pathogens | CK-12 Foundation


How does your body keep most enemies out? Many would consider the moat around this castle, together with the thick stone castle walls, as the first line of ...

Ask A Scientist - Microbe Magic


Q. What does the stomach contain to defend your body against microbes? ... in your nose and lungs, wax in your ears and sweat, saliva and tears on your skin. ... Other types of white blood cells find pathogens that are hiding from your ..... have physical functions, they help to keep moisture like rain or sweat out of your eyes.

How does a virus or bacteria enter the body? - UCSB Science Line


If you touch a bacteria or virus and then rub your nose or eyes they can enter your ... they can come into your body through your mouth, or your nose, or your ears. ... Your body has a lot of defenses to keep the bad bacteria from coming in too ...

5 Natural Body Barriers to Prevent Disease | LIVESTRONG.COM


Jun 4, 2015 ... The body has two lines of natural defense to protect against ... The first are physical barriers, such as the skin, body secretions and ... to the nose and ears also serve as a natural barriers to infection. ... prevent bacteria from sticking to the teeth, helping to prevent tooth ... How Does Skin Prevent Disease?

BBC - GCSE Bitesize: Body defences


The body has several defences against pathogens so we do not fall ill with the diseases they cause. ... Nasal hairs keep out dust and larger microorganisms.

Ear Infections - body, last, viral, causes, Getting an Earful


At first, he was too young to tell anyone when his ear hurt, but he would tug at the ear and cry. ... With the fluid drained out of his ears, Bobby's brother was able to hear better. ... To understand how an infection affects the ear, it helps to know how a ... Keeping a steady pressure inside the ear is important, so that the eard...

Earwax Benefits: Why Your Ears Need Wax - Mercola


Mar 29, 2014 ... Your Ears Are Self-Cleaning: Keep the Cotton Swabs Out ... Excess earwax should move out of your ear canal automatically, as cells there actually migrate naturally. ... underarm body odor in Chinese, Japanese, and Korean individuals. ... oil, or ear drops to soften the wax to help it migrate out on its own, ...

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How does the body keep out germs? - Infectious Disease - Sharecare


Skin, the largest organ of the body, is a formidable barrier to infection. ... The eyes , mouth, ears, airways, digestive tract, and urogenital tract are examples of the body's gateways. ... which eliminate many pathogens before they have time to establish themselves. ... What Type of Diseases Does Your Lab Focus On? 0:17.

Kids' Health - Topics - The immune system - CYH Home


Dec 16, 2014 ... Every day your body is exposed to millions of germs, and you do not get sick ... Your doctor can often tell if you have an infection by checking out the ... Some live in different parts of the body and help to keep it clean, eg. in the lungs. ... Ears - how your ears work, Ears - keeping your ears safe from noise ....

The immune system defends the body. - ClassZone


Pathogens can enter through your skin, the air you breathe, and even the food you ... How does the body keep foreign particles out? ... system is then able to help defend the body because blood ..... had a disease such as strep throat or an ear.