|
The integumentary system is vital to every mammal’s body. Skin and its accessory organs such as fingernails and hair make up this system. The purposes of the integumentary system are to protect the body from infection and injury, regulate body temperature, remove waste from the body, protect the body from UV rays, and produce vitamin D. ... During the third week, the endoderm, the innermost layer, begins to develop into the digestive system and parts of the reproductive, urinary, respiratory, and endocrine systems. ... Part of the outermost layer, the ectoderm, develops into the nervous system, while the rest forms the integumentary system. ... For example, parts of the digestive system are lined with epithelial cells to absorb nutrients, and the lungs are lined with epithelial tissues to aid in absorbing oxygen.
Approximate Word count = 632
Approximate Pages = 2.5
(250 words per page double spaced)
|
|
