PROTECTION BY SKIN
▪ Skin is a stable but flexible outer covering that act as barrier.
▪ Protects the body from harmful things such as moisture, the
cold and sun rays, as well as germs and toxic substances.
▪ The protective functions of skin also include UV-protection,
anti-oxidant and antimicrobial functions.
▪ Acts as a sensory organ (touch, detects temperature)
PROTECTION AGAINST MICROORGANISMS :
▪ Skin is a barrier that serves as one of the body's first line
of defense against harmful microbes.
▪ The epidermis, especially its upper layer (stratum
corneum) acts as a skin barrier and is your body's first line
of defense against microorganisms.
▪ Sebaceous glands associated with the skin secrete
substances that help fight off potentially dangerous
microorganisms.
ROLE OF SKIN IN PREVENTING
DEHYDRATION :
▪ Skin acts as a protective barrier against water loss, due to
the presence of layers of keratin and glycolipids in the
stratum corneum.
▪ Skin is waterproof because its outer layer contains a
protein called keratin and glycolipids.
▪ With the help of thermoregulation, by producing sweat and
dilating blood vessels, which helps keep the body cool.
▪ Skin helps in preventing dehydration and protects you
from the negative effects of too much heat or cold.