The skin, or integumentary system, is the body's largest organ. It protects us from the outside world, and is our first defense against bacteria, viruses and other pathogens. Our skin also helps regulate body temperature and eliminate waste through perspiration.
An insulin pump with a subcutaneous injection site. A subcutaneous injection is administered as a bolus into the subcutis, the layer of skin directly below the dermis and epidermis, collectively referred to as the cutis. Subcutaneous injections are highly effective in administering vaccines and medications such as insulin, morphine, diacetylmorphine and goserelin.
An insulin pump with a subcutaneous injection site. A subcutaneous injection is administered as a bolus into the subcutis, the layer of skin directly below the dermis and epidermis, collectively referred to as the cutis.Subcutaneous injections are highly effective in administering vaccines and medications such as insulin, morphine, diacetylmorphine and goserelin. The outer area of the upper arm. 2  The abdomen, from the rib margin to the iliac crest and avoiding a 2 inch circle around the navel. 3  This has the fastest rate of absorption among the sites. 4  The front of the thigh, midway to the outer side, 4 inches below the top of the thigh to 4 inches above the knee.