a system such as this
81nervous system, human — ▪ anatomy Introduction system that conducts stimuli from sensory receptors to the brain and spinal cord and that conducts impulses back to other parts of the body. As with other higher vertebrates, the human nervous system has two main… …
82political system — Introduction the set of formal legal institutions that constitute a “government” or a “ state.” This is the definition adopted by many studies of the legal or constitutional arrangements of advanced political orders. More broadly defined,… …
83Immune system — A scanning electron microscope image of a single neutrophil (yellow), engulfing anthrax bacteria (orange). An immune system is a system of biological structures and processes within an organism that protects against disease by identifying and… …
84Operating system — Operating systems …
85Motion picture rating system — Parental Guidance redirects here. For the Singaporean TV series, see Parental Guidance (TV series). For the Judas Priest song, see Parental Guidance (song). A motion picture rating system is designated to classify films with regard to suitability …
86Judicial system of the People's Republic of China — For the Ministry of Justice, see Ministry of Justice of the People s Republic of China. People s Republic of China This article is part of the series: Politics and government of …
87immune system — Anat. a diffuse, complex network of interacting cells, cell products, and cell forming tissues that protects the body from pathogens and other foreign substances, destroys infected and malignant cells, and removes cellular debris: the system… …
88Global Positioning System — GPS redirects here. For other uses, see GPS (disambiguation). Geodesy Fundamentals …
89Health care system — A health care system is the organization of people, institutions, and resources to deliver health care services to meet the health needs of target populations. There is a wide variety of health care systems around the world, with as many… …
90Domain Name System — The Domain Name System (DNS) is a hierarchical distributed naming system for computers, services, or any resource connected to the Internet or a private network. It associates various information with domain names assigned to each of the… …
