<P> The integumentary system comprises the skin and its appendages acting to protect the body from various kinds of damage , such as loss of water or abrasion from outside . The integumentary system includes hair , scales , feathers , hooves , and nails . It has a variety of additional functions ; it may serve to waterproof , cushion , and protect the deeper tissues , excrete wastes , and regulate temperature , and is the attachment site for sensory receptors to detect pain , sensation , pressure , and temperature . In most land vertebrates with significant exposure to sunlight , the integumentary system also provides for vitamin D synthesis . </P>
<P> The integumentary system comprises the skin and its appendages acting to protect the body from various kinds of damage , such as loss of water or abrasion from outside . The integumentary system includes hair , scales , feathers , hooves , and nails . It has a variety of additional functions ; it may serve to waterproof , cushion , and protect the deeper tissues , excrete wastes , and regulate temperature , and is the attachment site for sensory receptors to detect pain , sensation , pressure , and temperature . In most land vertebrates with significant exposure to sunlight , the integumentary system also provides for vitamin D synthesis . </P>
what are the two parts of the integumentary system
what are the two parts of the integumentary system
the skin appendages
the skin appendages