Organs of the circulatory system are the heart, blood, and blood vessels (arteries and veins). The circulatory system interacts with other systems, such as the lungs (respiratory system), liver (digestive system), and kidneys (digestive system).
Skin, hair, nails, sweat and oil glands. Function: Serves as a barrier against infection and injury; helps to regulate body temperature; provides protection against ultraviolet radiation from the sun.
Barrier nursing. Barrier nursing is a set of stringent infection control techniques used in nursing. The aim of barrier nursing is to protect medical staff against infection by patients, particularly those with highly infectious diseases. Reverse barrier nursing is similar, but concentrates on the reverse: protecting vulnerable patients, such as those with weakened immune systems, against infection by medical staff.