Brain And Spinal Cord Is The Centre Of The Whole Body

20.The part of the ANS that is responsible for reacting to stressful events and bodily arousal is called the  sympathetic division of the nervous system.

According to Carlson (YEAR), neuron (nerve cell) is defined as,” the information-processing and information-transmitting element of the nervous system”. The shape and variety will depend on the specialized job they perform. The majority of neurons have in common in one form or another, the four structures or regions: the cell body or soma, axon, dendrites; and terminal buttons. The soma or the cell body contains the nucleus which regulates all cell activity. Dendrites is derived from the Greek work Dendron, for tree, because they resemble trees. The dendrite is attached to the cell body of the neuron which receives information and

The nervous system is made up of basic units called neurons. The main role of the neurons is to receive, integrate and transmit information throughout the body. There are some neuroglial cells found in nervous system aswell which provide support to the neurons by giving protection and nourishment Neurons have nerve processes that looks like finger like projections extended from the nerve cell body. They also contain axons and dendrites which enable them to transmit signals throughout the body. Normally, axon carry signals away from the cell body and dendrites carry signals toward the cell body according to Regina Bailey (2013). Neurons have three different shapes: bipolar, unipolar and multipolar where bipolar has two neuronal processes coming out of the cell body, unipolar has only one neuronal process coming out of the cell body and multipolar has many neuronal processes coming out of the cell body.

Neurons, nerve cells, have three basic parts: the cell body, dendrites, and axon. Neurons transmit signals to other nerve cells and throughout the body. They are simple components in the nervous system. The cell body includes the nucleus, which is the control center of the neuron. The dendrite branches off the cell body and receives information. The axon is attached to the cell body and sends information away from the cell body to other cells. When the axon goes through myelination, the axon part of the neuron becomes covered and insulated with fat cells, myelin sheath. This increases the speed and efficiency of information processing in the nervous system. Synapse are gaps between neurons, this is where connections between the axons and dendrites.

Neurons are information- processing units in the central nervous system that receive and transmit information. It is made up of an axon, dendrites and a cell body. The nucleus and cytoplasm are contained in the cell body. The axon starts from the cell body, dividing into smaller branches and then ends at the nerve terminals. The dendrites also branch from the cell body, receiving information from the other neurons. Axons from other neurons forms

Everything we do is a product of neural communication, whether that be reacting to senses or feeling emotions, it is all due to us having neural communication through millions of neurons passing small electrical signals throughout the body through such pathways as the central nervous system and the peripheral nervous system and passing information to and from the brain. These ‘’neurons’’ are made up of Dendrites which are connected to a cell body, or also known as the soma, these are tree-like feathery filament ‘’message receivers’’ that collect these messages from other neurons it is connected to, neurons are connected through a dendrite to axon terminal connections and pass these ‘’messages’’ through the body as action potentials.

|  A neuron is known as an excitable cell that can process and transmit information through electrical and chemical signals. Neurons are the core components of the nervous system, which includes the brain, spinal cord and nervous system.

* Sensory neurons or Bipolar neurons carry messages from the body's sense receptors (eyes, ears, etc.) to the CNS. These neurons have two processes. Sensory neuron account for 0.9% of all neurons. (Examples are retinal cells, olfactory epithelium cells.)

Our nervous system is there to help to transfer the things our body feels and what we need. The nervous is broken up into two parts, the central nervous system (CNS), and the peripheral nervous system (PNS). The CNS controls the brain and the spinal cord, the PNS controls the nerves and the ganglia (a small mass of gray matter). Our body uses the spinal cord to send messages to the nerves so that it can control our organs and muscles.

The nervous system operates using an electrochemical process (see Video Clip: The Electrochemical Action of the Neuron). An electrical charge moves through the neuron itself and chemicals are used to transmit information between neurons. Within the neuron, when a signal is received by the dendrites, is it transmitted to the soma in the form of an electrical signal, and, if the signal is strong enough, it may then be passed on to the axon and then to the terminal buttons. If the signal reaches the terminal buttons, they are signaled to emit chemicals known as neurotransmitters, which communicate with other neurons across the spaces between the cells, known as synapses.

Neurons (also known as neurons, nerve cells and nerve fibers) are electrically excitable and the most important cells in the nervous system that functions to process and transmit information. Neurons have a large number of extensions called dendrites. They often look likes branches or spikes extending out from the cell body. It is primarily the surfaces of the dendrites that receive chemical messages from other neurons.

A neuron contains as mentioned above dendrites. Through many dendrites, the neuron receives signals from other neurones. The neuron passes this signal on, by most of the time one axon. This axon can travel a long,

The nervous system helps maintain homeostasis by controlling and regulating the other parts of the body. A deviation from a normal set point act as a stimulus to a receptor, which sends nerve impulses to a regulating center in the brain. For example, “breathing is involuntary, the nervous system ensures that the body is getting much needed oxygen through breathing the appropriate amount of oxygen.” This shows that the nervous system plays a role in making sure that the breathing patterns of a human stays constant in order to maintain homeostasis. This system is the control center of the human body. The Control center sets the range of value to be maintained and is made up of the brain, spinal cord and nerves. The nervous system is important to the human body because its an organ system in charge of sending messages to and from the brain and spinal cord to and from all parts of the body. What helps send these messages are nerves, one or more bundles of fibers forming part of a system that conveys impulses of sensation, motion, etc, between the brain or spinal cord and other parts of the body. Nerves act as highways to carry signals between the brain and spinal cord and the rest of the body. The Central Nervous system is the complex of nerve tissues that controls the activities of the body, it consists of two parts: the brain and the spinal cord. The brain is arguably the most important organ in the human body. It controls and coordinates actions and reactions, allows us to think and feel enables us to have memories and feelings- all the things that makes us human. Three main parts of the brain is the forebrain, midbrain, hindbrain. The Forebrain consists of the cerebrum, thalamus, and hypothalamus, The Midbrain consists of the tectum and tegmentum, The Hindbrain is made of the cerebrum, pons and medulla, brainstem.

Even though the brain is the major control center if the body, its job would not be possible without the spinal cord. The spinal cord is the major organ that helps information travel between the body and the brain. Nerves branch in the peripheral system from, either the brain stem or spinal cord, each nerve attaches to a specific area of the torso and limbs it 's responsible for communication to and from those regions. There are three very important

Nerve cells generate electrical signals to transmit information. Neurons are not necessarily intrinsically great electrical conductors, however, they have evolved specialized mechanisms for propagating signals based on the flow of ions across their membranes.