absorption
a. the ability of skin to allow small amounts of certain substances to
pass through openings in its surface
b. the release through the hair follicles of the sebum necessary to
lubricate the skin's surface and soften the hair
c. the removal of wastes from the body
d. the process in which the skin helps to keep body heat constant by
regulating perspiration
e. the process in which sensory nerve endings in the skin convey
messages to the brain and spinal cord
f. the ability of the skin to keep harmful bacteria and chemicals from
entering the body