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.
A subcutaneous injection is a shot given into the fat layer between the skin and muscle. Subcutaneous injections are used to give small amounts and certain kinds of medicine. There are 3 parts to a syringe: the needle, the barrel, and the plunger. The needle goes into your skin.