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The nervous system is a highly complex part of an animal that coordinates its actions and sensory information.
The nervous system is a highly complex part of an animal that coordinates its actions and sensory information by transmitting signals to and from different parts of its body. The nervous system detects environmental changes that impact the body, then works in tandem with the endocrine system to respond to such events. Nervous tissue first arose in wormlike organisms about 550 to 600 million years ago. In vertebrates it consists of two main parts, the central nervous system (CNS) and the peripheral nervous system (PNS). The CNS consists of the brain and spinal cord. The PNS consists mainly of nerves, which are enclosed bundles of the long fibers or axons, that connect the CNS to every other part of the body. Nerves that transmit signals from the brain are called motor or efferent nerves, while those nerves that transmit information from the body to the CNS are called sensory or afferent. Spinal nerves serve both functions and are called mixed nerves. The PNS is divided into three separate subsystems, the somatic, autonomic, and enteric nervous systems. Somatic nerves mediate voluntary movement. The autonomic nervous system is further subdivided into the sympathetic and the parasympathetic nervous systems. The sympathetic nervous system is activated in cases of emergencies to mobilize energy, while the parasympathetic nervous system is activated when organisms are in a relaxed state. The enteric nervous system functions to control the gastrointestinal system. Both autonomic and enteric nervous systems function involuntarily. Nerves that exit from the cranium are called cranial nerves while those exiting from the spinal cord are called spinal nerves.
Nervous System may also refer to:
- Nervous System (album), a 2011 album by The Dirtball
- Nervous System (EP), a 2017 EP by Julia Michaels
- "Nervous System" (song), a 1979 song by Killing Joke
Nervous System is the fifth solo studio album by American rapper David "The Dirtball" Alexander of the Kottonmouth Kings. It was released on March 1, 2011 via Suburban Noize Records. The album features guest appearances from Daddy X and Johnny Richter of KMK, Big B of OPM, and Blaze Ya Dead Homie.
Nervous System is the third extended play and major-label debut by American singer and songwriter Julia Michaels, released by Republic Records on July 28, 2017. Most of the tracks on the EP were composed by Michaels and her frequent writing partner, Justin Tranter, as well as the songs producers, Benny Blanco, Stargate and Mattman & Robin. Musically, it is a pop record and lyrically it explores a former romantic relationship of Michaels'. It is Michaels' first EP to have a commercial impact.
"Nervous System" is a song by English post-punk band Killing Joke. It was released in 1979 by Island Records as the band's debut single, shortly after the release of their Turn to Red/Almost Red EP.
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