Treating Physician Law and Legal Definition. A treating physician is defined as âsomeone who provides you, or has provided you, with medical treatment or evaluation and who has, or has had, an ongoing treatment relationship with you.
In the first four weeks from conception, fetal growth of the ovum begins with development of the spinal cord, nervous system, gastrointestinal system, heart and lungs. By eight weeks, in the embryonic stage, the face is forming, arms and legs move, the baby's heart begins beating and the brain and other organs form.
Development of the brain. A great deal of brain development occurs before birth. During the second month after conception, for example, three major divisions of the brain become visible, including one division that will grow into the cortex.. At birth, the brain typically weighs about 350 grams, about a quarter of the weight of the adult brain, which is roughly 1400 grams, or 3 lbs. Overall brain weight increases rapidly in childhood and reaches adult levels fairly early.