In a normal menstrual cycle, your hormones â or natural body chemicals â go up and down. Sometimes there are problems with hormones. One common hormone condition that causes period problems is PCOS, or polycystic ovary syndrome. Read our information on PCOS for teens, and see your doctor if you think you may have PCOS.
Definition of Organogram. Organogram is an intuitive reflection of organization structure, one of the most common diagram to illustrate the relation among departments, superiors and subordinates vividly and briefly. It is defined as a top-bottom, with icon list, architecture diagram which can automatically increase vertical level.
Very simply put, the definition of an organ system is a group of organs that work with one another in order to achieve or perform a particular task or set of tasks. The human body has the following major organ systems: circulatory system, digestive system, endocrine system, excretory system, integumentary system, nervous system, respiratory system and the skeletal and muscular system.