The nervous system is a complex network of nerves and cells that transmit signals between different parts of the body. It is responsible for the control and coordination of all activities of the body, from breathing and digestion to movement and thinking. The nervous system is divided into two main parts: the central nervous system (CNS) and the peripheral nervous system (PNS). The central nervous system is made up of the brain and spinal cord, while the central nervous system is made up of the nerves that connect the central nervous system to the rest of the body. Say no to plagiarism. Get a tailor-made essay on "Why Violent Video Games Shouldn't Be Banned"? Get an original essay The nervous system plays a crucial role in maintaining homeostasis, which is the body's ability to regulate its internal environment and maintain a stable and constant condition. It is also responsible for allowing the body to respond to changes in the external environment and communicate with other parts of the body. The nervous system is made up of two types of cells: neurons and glial cells. Neurons are the primary cells responsible for transmitting signals, while glial cells provide support and protection to the neurons. The nervous system is divided into two main parts: the central nervous system (CNS) and the peripheral nervous system (PNS). The central nervous system is made up of the brain and spinal cord, while the central nervous system is made up of the nerves that connect the central nervous system to the rest of the body. The central nervous system is responsible for processing and interpreting information from the central nervous system, as well as coordinating the body's responses to that information. The PNS, on the other hand, is responsible for transmitting signals between the CNS and the rest of the body, as well as collecting sensory information from the body's external environment. The nervous system is also divided into two main functional divisions: the somatic nervous system and the autonomic nervous system. The somatic nervous system is responsible for controlling voluntary movements and transmitting sensory information from the body's sensory organs to the central nervous system. The autonomic nervous system, on the other hand, is responsible for controlling involuntary functions such as heart rate, digestion, and breathing. The nervous system relies on electrical and chemical signals to transmit information between different parts of the body. Neurons are the primary cells responsible for transmitting these signals and are able to do so due to their unique structure. Neurons are made up of three main parts: the cell body, the dendrites and the axon. The cell body contains the nucleus and other organelles and is responsible for integrating signals from other neurons. Dendrites are short, branched extensions that receive signals from other neurons, while axon is a long, thin extension that transmits signals to other neurons. Neurons communicate with each other through a process called synaptic transmission. When an electrical signal reaches the end of an axon, it triggers the release of chemical messengers called neurotransmitters. These neurotransmitters then bind to receptors on the surface of the next neuron, causing the generation of a new electrical signal. This process allows for the rapid transmission of signals between different parts of the nervous system. Please note: this is just an example. Get a custom paper from our expert writers now. Get a Custom Essay The nervous system is a complex and fascinating system that plays a crucial role in the control and coordination of all the organism's activities. AND.