What Are The Primary Components Of Our Nervous System

There is hope for parents of teenagers that feel like their child is a lost cause. In a 2015 issue of Scientific American titled The Amazing Teen Brain, author Jay N. Giedd explains why the teenage brain is not “biology gone wrong”. With the help of magnetic resonance imaging (MRI) the brain of people of different ages can be studied to provide more accurate information. One of those findings is that the adolescent brain does not mature by getting larger, that it matures by having its structures more interconnected and by becoming more specialized. MRI scans show that greater volumes of white matter indicate the increase in connectivity among brain regions. White matter contains axons, which are extensions of neurons. A covering called myelin surrounds many axons, and myelin gives white matter its white color. The formation of myelin occurs from childhood through adulthood and it greatly speeds up nerve impulses among neurons. Myelination makes a difference so great that unmyelinated axons send signals 100 times slower than myelinated ones. Another crucial function of myelin is that it quickens the way brain processes information. It does this by helping axons recover quickly after they fire a signal so they are ready to

They have the ability to transmit the signals among the nerve cells. They had known as neurons. Also, communicate the information throughout the body and brain. The brain utilizes neurotransmitters to inform the lungs, heart and stomach to do their functions. Those like, lungs to breath, heart to beat and stomach to digest. In addition, they having the ability to affect the mood, weight, concentration, sleep might cause unfavorable symptoms. While they balanced in the out of range. Neurotransmitter level might be exhausted in several ways. There are two types of neurotransmitters

The nervous system consists of the brain, spinal cord, and a complex network of neurons. This system is responsible for sending, receiving, and interpreting information from many different parts of the body. The nervous system monitors and controls the internal organ function as well as then responding to changes in the external environment. The system can be divided into two parts, the central nervous system and the peripheral nervous system. The peripheral nervous system is the part of the nervous system that consists of the nerves and ganglia outside of the brain and spinal cord. The main function of this system is to connect the central nervous system to the limbs and organs, almost acting as a communicator. The peripheral nervous system then

Neurons in our brain are constantly communicating by releasing chemical signals or neurotransmitters across the synapse of one neuron to another. Action potential is important for how neurons communicate. When an action potential reaches the axon terminals, the neurotransmitters packaged in vesicles are able to release the information to the other neurons' synapse. The axon hillock of the nerve cell, which is the beginning of the axon, is where action potentials are generated. The action potential propagates throughout the axon, the long part of neuron, where an exchange of ions occur. The ions exchanged include potassium ions (K+) and sodium ions (Na+). Sodium ions are sodium atoms with a positive charge as a result of losing and electron. Certain proteins along the cell's plasma membrane called ion channels play a significant role in the process, allowing particular ions in and out of the membrane.

Chronic pain presents a number of challenges to researchers and clinicians, leaving many patients to endure and suffer chronic pain for many years and even a lifetime for some. Attempts to understand, treat and alleviate the suffering caused by pain is one of the most important aspects of healthcare and medicine. The subjective nature of the pain experience and the different pathophysiological mechanisms involved in pain all contribute to the challenges in understanding and treating chronic pain. Conventional pharmacological treatment approaches have been providing some relief to patients who suffer chronic pain, but those who suffer may seek alternative treatments for a number of reasons, ranging from the lack of effective analgesia to the

Interneurons: found in the brain and spinal cord, process incoming impulses and pass them on to motor neurons.

Leading the afferent neurons to enter the dorsal nerve root of the spinal cord, the stimulus is passed onto the efferent neuron to reach the efferent pathway to reach the effector organ in Rachel’s case it’s the muscles in the arm leading to hand instantly being pulled back. The brain is not involved in the reflex actions as it will take more time for the impulses to travel to and from the brain. The afferent neurons taking the causal stimulus to the CNS,the spinal cord, the efferent neurons, the exciter neurons and the action performed in response to the stimulus altogether create the reflex arc.(YouTube,

The reproductive system consists of three parts which include the clitellum, seminal vesicles, and seminal receptacles. The clitellum is a thick band that secretes a mucus cocoon. The seminal vesicles store worm's sperm and the seminal receptacles stores sperm from another worm. Together these three part reproduce a new worm. (Crondon, 2015)

Each sensory receptor in the skin connects with a neuron in the central nervous system through various relay neurons. Along the way, sensations are converted into electrical signals. The neurons on this pathway delineate the contralateral. These signals travel along axons to the central nervous system. Their journey is comprised of being transmitted through the spinal cord, past the medulla where they cross, through the thalamus, and finally to the parietal lobes, specifically the postcentral gyrus. Here, in the postcentral gyrus, the somatosensory cortex is located. Divided into primary and secondary, the somatosensory cortex houses neuron designated to specific locations of the body that they are responsible for detecting sensations

Information conveyed through the nervous system moves along networks of cells called neurons. These neurons can only send information one way. Those transmitting to the brain are sensory neurons; those that transmit from the brain are known as motor neurons.

The nervous system is categorized into two different divisions: The central nervous system (CNS) and the peripheral nervous system (PNS). The CNS mainly consists of the brain and spinal cord. The PNS consists of the nerve impulses that carry synapses to and from the spinal cord. It includes the cranial nerves such as ganglia, enteric plexuses and sensory receptors. The PNS can also be divided into the somatic and autonomic nervous system, which is divided further into the parasympathetic and sympathetic divisions.

Norman Doidge states that it is possible to heal the brain, contrary to popular belief. He introduced that the brain is capable of changing its structure and function. This phenomenon is referred to as neuroplasticity. This has replaced the previously held belief that adult brain is physiologically static. This process can make your brain resilient. Thus, you are not actually stuck with the brain that you are born with. Here are some fundamentals of neuroplasticity.

The Mudra therapy is a very unique concept and it deals with the stimulations of the nerves in the hand and the brain. The nerves play a very major role in the concept of Mudra therapy. The nerves in the hand get stimulated on holding a particular hasta mudra; they travel via the spinal cord and reach the brain. The brain gets stimulated and sends impulses to the respective parts of the body, depending on the fingers involved in holding the hasta mudra, as each finger in the hand corresponds to a particular part in the body. Hence the knowledge of the nervous system of the hand is required to understand the therapeutic effect of the hasta mudras effectively. The nervous system of the hand is very uniquely built and each finger in the hand has

As said before, the Nervous system is made up of two systems, CNS and PNS. However, Neurons are microscopic cells that play a massive part in the workings of the Nervous system. What sets apart Neurons form other cells is that they can transmit electrochemical signals when stimulated. Neurons naturally have a small negative charge but when stimulated they produce enough electrical energy to create a reaction in these systems (Better Health Channel, 2014).

The main components that make up nervous tissue are nerve cells or neurons. An important structure of nervous tissue are the neuroglial cells. Neurons are a specialized type of cell that receive and transmit information as electrical or chemical signals. Neurons pass on the information by synapses which are structures that resemble junctions in non-neural cells (Campbell, 2004).