Human Tissue Act 2004 Human Tissue Act 2004 The Human Tissue Act 2004 (c 30) is an act of the UK parliament applying to England, Northern Ireland and Wales. It consolidates previous legislation and created the Human Tissue Authority to "regulate the removal, storage, use and disposal of human bodies, organs and tissue." The Act was brought about as a consequence of, among things, the Alder Hey organs scandal, in which organs of children had been retained by the Alder Hey Children's Hospital without consent, and the Kennedy inquiry into heart surgery on children at the Bristol Royal Infirmary. A consultative exercise followed the
Effect of spaceflight on the human body of muscle fibre prominent in muscles also change. Slow twitch endurance fibres used to maintain posture are replaced by fast twitch rapidly contracting fibres that are insufficient for any heavy labour. Advances in research on exercise, hormone supplements and medication may help maintain muscle and body mass. Bone metabolism also changes. Normally, bone is laid down in the direction of mechanical stress. However, in a microgravity environment there is very little mechanical stress. This results in a loss of bone tissue approximately 1.5% per month especially from the lower vertebrae, hip and femur. Due to microgravity and the decreased load