Oct 27, 2025 · Nervous system, organized group of cells specialized for the conduction of electrochemical stimuli from sensory receptors. The nervous system allows for the almost …

Oct 27, 2025 · The human nervous system is the series of cells and nerve tracts that conduct stimuli from sensory receptors in the periphery to receptors in the brain and spinal cord and …

In mammals and other animals with backbones the brain and the spinal cord form the central part of the nervous system. The spinal cord is a long bundle of major nerves.

Oct 29, 2025 · The brain and the spinal cord together make up the system of nerve tissue in vertebrates called the central nervous system, which controls both voluntary movements, such …

The nervous system in humans has two main parts: the central nervous system and the peripheral nervous system. The central nervous system consists of the brain and spinal cord.

A sensory neuron transmits impulses from a receptor, such as those in the eye or ear, to a more central location in the nervous system, such as the spinal cord or brain.

Oct 16, 2025 · The sympathetic nervous system is one of two antagonistic sets of nerves of the autonomic nervous system; the other set constitutes the parasympathetic nervous system.

Nov 3, 2025 · These variables account for the complex responses of the nervous system to any given stimulus. The synapse, with its neurotransmitter, acts as a physiological valve, directing …

That system was the nervous system, which is based upon the almost instantaneous transmission of electrical impulses from one region of the body to another along specialized nerve cells …

Oct 27, 2025 · The location of a stimulus, whether in the external or internal environment, is readily determined by the nervous system. Localization of stimuli in the environment depends …