Intact skin and mucosal surfaces both contribute to the body’s physical defense. Compare and contrast the two surfaces with regards to the characteristics they have that aid in defense and what weaknesses each possesses.
Intact skin and mucosal surfaces both contribute to the body’s physical defense. Compare and contrast the two surfaces with regards to the characteristics they have that aid in defense and what weaknesses each possesses.
Explanation:
Both of these surfaces have distinct qualities that contribute to their defensive effectiveness. The skin is the biggest organ in the body and covers the whole of the organism. It guards the body against illness, loss of water, and exposure to ultraviolet light. The mucosal surfaces border the interior cavities of the body, such as the oral cavity, nasal cavity, and gastrointestinal system, among other places. They do this by secreting mucus, which ensnares and destroys pathogens like bacteria and viruses that may otherwise enter the body. Additionally, immune cells that aid in the fight against infection may be found on mucosal surfaces.
Pathogens are able to take advantage of the skin's many vulnerabilities in order to cause disease. Sharp things have the potential to penetrate the skin, which then opens the door for pathogens like germs and viruses to enter the body. UV radiation, which may also be damaging to the skin and can impair the immune system, can also cause harm. Harsh chemicals may also cause damage to the mucosal membranes, which therefore makes it easier for pathogens like bacteria and viruses to enter the body.
In general, the mucosal surfaces of the body have a lower resistance to infection than the skin does. On the other hand, mucosal surfaces are far better in entrapping and getting rid of germs.
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