Biology
Answer
The four ways in which the skin serves as a protective layer for our body are:
- It protects the underlying tissues from mechanical shocks.
- It holds the body fluids inside and prevents excessive loss of water by evaporation.
- It prevents harmful substances or disease-causing germs from entering our body.
- It protects the body against excess ultraviolet light which is potentially very harmful.
Related Questions
Cross out the items in the following list which are not the functions of the human skin:
Sensation, respiration, storage of glycogen, excretion, digestion, temperature regulation, synthesis of vitamin D, secretion of hormone
Name the three sub-layers of the epidermis from outer to inner.
Write True (T) or False (F) for the following statements:
- Stratum corneum is made of dead cells having keratin.
- The malpighian layer is hard and resistant to bacterial invasion.
- The pigment melanin which imparts colouration to the skin is found in the malpighian layer.
- The dermis is very thick on palms and soles.
Match the items in Column I with those in Column II
Column I Column II Air spaces Hairs are lifted Mammary glands Sebaceous glands "Goose-flesh" Rudimentary in males Traces of urea Races of hot countries More numerous sweat pores Grey hair Oily secretion Sweat