Human body of different cavities, separated areas which house different organ systems. The brain and central nervous system reside in an area protected from the rest of the body by the blood brain barrier. The lungs sit in the pleural cavity. The intestines, liver, and spleen sit in the abdominal cavity Height, weight, shape and other body proportions vary individually and with age and sex. Body shape is influenced by the distribution of muscle and fat tissue. Human physiology is the study of how the human body functions. This includes the mechanical, physical, bioelectrical, and biochemical functions of humans in good health,
Convention for the Protection of Human Rights and Dignity of the Human Being with regard to the Application of Biology and Medicine availability of organs from a deceased person. Any removed parts of the body must be disposed of respectfully in accordance with the wishes of the individual. In addition, there is to be no financial gain arising from the human body or its parts, however adequate compensation for expenses incurred for a medical procedure is not prohibited. The rules relating to consent laid out in "Chapter II" of the Convention also apply in the context of organ transplantation. In accordance with the European Convention on Human Rights, any individual who has suffered damage should have access to fair compensation ("Article 24").