chapter 7 the nervous system pdf - Chapters
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What is the nervous system? Your nervous system is your body’s command center. It’s made up of your brain, spinal cord and nerves. Your nervous system works by sending messages, or electrical signals, between your brain and all the other parts of your body.
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These signals tell you to breathe, move, speak and see, for example. Your nervous system keeps track of what’s going on inside and ... In biology, the nervous system is the 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. [1] Nervous tissue first arose in wormlike organisms about 550 ...
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Define nervous. nervous synonyms, nervous pronunciation, nervous translation, English dictionary definition of nervous. adj. 1. a. Of or relating to the nerves or nervous system: nervous tissue.
b. Stemming from or affecting the nerves or nervous system: a nervous disorder.... The nervous system is the complex network of specialized cells and tissues that coordinate the body’s activities by transmitting signals to and from different parts of the body. It is responsible for perceiving sensory stimuli, processing information, and generating responses that maintain homeostasis and support functions such as movement, thought, emotion, and autonomic regulation.