A part of the nervous system that regulates key involuntary functions of the body, including the activity of the heart muscle; the smooth muscles, including the muscles of the intestinal tract; and the glands. The autonomic nervous system has two divisions: the sympathetic nervous system, which accelerates the heart rate, constricts blood vessels, [..]

That part of the nervous system that consists of the brain and spinal cord. The central nervous system (CNS) is one of the two major divisions of the nervous system. The other is the peripheral nervous system (PNS), that part of the nervous system that lies outside the brain and spinal cord. The peripheral nervous system (PNS) connects the central [..]

The sum total of the tissues that record and distribute information within a person, and does so by electrical and chemical means. The nervous system has two distinct parts -- central and peripheral. The central part is made up of the brain and spinal cord. Together they are the central nervous system (CNS). The peripheral part of the nervous syste [..]

The part of the involuntary nervous system that serves to slow the heart rate, increase intestinal and glandular activity, and relax the sphincter muscles. The parasympathetic nervous system, together with the sympathetic nervous system, constitutes the autonomic nervous system.

That portion of the nervous system that is outside the brain and spinal cord. The peripheral nervous system (PNS) is one of the two major divisions of the nervous system. The other is the central nervous system (CNS) which is made up of the brain and spinal cord. The nerves in the peripheral nervous system (PNS) connect the central nervous system ( [..]

A part of the nervous system that serves to accelerate the heart rate, constrict blood vessels, and raise blood pressure. The sympathetic nervous system and the parasympathetic nervous system constitute the autonomic nervous system.

The organized network of nerve tissue in the body. It includes the central nervous system (the brain and spinal cord), the peripheral nervous system (nerves that extend from the spinal cord to the res [..]

All the nerve cells of an animal; the receptor-conductor-effector system; in humans, the nervous system consists of the central nervous system (brain and spinal cord) and the peripheral nervous system [..]

a vast network of cells that carry information to and from all parts of the body (M. sexta Wax Model)

cells, organs, and tissues including the brain and spine that respond to internal and external stimuli.

is the collective term used to describe the system of neurons, nerves, tracts and other tissues, with the endocrine system, coordinates the activities and responses to environmental and internal and e [..]

The nervous system is a complex system of nerves which allows you to register touch, move, breathe, feel and think. The nervous system includes your brain, spinal cord, and the nerves that travel thro [..]

The mammoth super highway through which messenger nerve cells

The system of cells, tissues and organs that regulates the body's responses to internal and external stimuli. In vertebrae it consists of the brain, spinal cord, nerves, ganglia and parts of the [..]

The nervous system controls everything you do, including breathing, walking, thinking, and feeling. This system is made up of your brain, spinal cord, and all the nerves of your body. The brain is the [..]

The entire nerve apparatus, composed of a central part, the Brain and spinal cord, and a peripheral part, the cranial and Spinal Nerves, Autonomic Ganglia, and plexuses. (Stedman, 26th ed)

The enteric, parasympathetic, and Sympathetic Nervous Systems taken together. Generally speaking, the autonomic Nervous System regulates the internal Environment during both peaceful activity and phys [..]

The main information-processing organs of the Nervous System, consisting of the Brain, spinal cord, and Meninges.

Two ganglionated neural plexuses in the gut wall which form one of the three major divisions of the Autonomic Nervous System. The enteric Nervous System innervates the Gastrointestinal Tract, the Panc [..]

The craniosacral division of the Autonomic Nervous System. The Cell bodies of the parasympathetic preganglionic fibers are in Brain Stem nuclei and in the sacral spinal cord. They Synapse in cranial A [..]

The Nervous System outside of the Brain and spinal cord. The peripheral Nervous System has autonomic and somatic divisions. The Autonomic Nervous System includes the enteric, parasympathetic, and symp [..]

The thoracolumbar division of the Autonomic Nervous System. Sympathetic preganglionic fibers originate in Neurons of the intermediolateral column of the spinal cord and project to the paravertebral an [..]

The entire nerve apparatus, composed of a central part, the brain and spinal cord, and a peripheral part, the cranial and spinal nerves, autonomic ganglia, and plexuses. (Stedman, 26th ed)

The organized network of nerve tissue in the body. It includes the central nervous system (the brain and spinal cord), the peripheral nervous system (nerves that extend from the spinal cord to the rest of the body), and other nerve tissue.

(NUR-vuh s SIS-tuh m): The part of the body, including the brain, spinal cord, and nerves that both receives and interprets stimuli and sends impulses.

the brain and spinal cord

The vast network of specialised nerve cells that carry information to and from all parts of the body in order to bring about bodily activity. It includes the central nervous system (brain and spinal c [..]

The nervous system is often divided into three systems: the central, brain and spinal cord; the peripheral, cranial and spinal nerves; and the sympathetic.

See how well you know the components and functions of the human nervous system. (20 items selected from 50 questions).

A regulatory system of the body that consists of neurons and neuroglial cells. The nervous system is divided into two parts, the central nervous system (CNS) and the peripheral nervous system (PNS).

the structures that control the actions and reactions of the body in response to stimuli from the environment; it is formed by billions of specialized nerve cells, called neurons