The Nervous System ( Cns )

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.

The nervous system is a multiplexed body system that controls most other body systems directly or indirectly by sending and receiving signals through a complex system of nerves. As a whole, the nervous system can be broken down into the central nervous system (CNS) and peripheral nervous system (PNS). The CNS is composed of the brain and spinal cord while the PNS is composed of peripheral nerves that branch off of the spinal cord and continue to branch to reach the most distal points of the limbs. The PNS can be further broken down into the afferent and efferent division. The afferent division deals with information brought to the CNS from the nerve receptors. Furthermore, the afferent division breaks down into somatic sensory receptors whose

Every behavior begins with biology. Our behaviors, as well as our thoughts and feelings, are produced by the actions of our brains, nerves, muscles, and glands. In this chapter we will begin our journey into the world of psychology by considering the biological makeup of the human being, including the most remarkable of human organs—the brain. We’ll consider the structure of the brain and also the methods that psychologists use to study the brain and to understand how it works.

The nervous system is a network of nerves and specialized cells that act as transmitters sending and receiving signals through the human body. As science progresses research involving the nervous system stands in controversy. Just as the nature verses nurture debate explaining the nervous system involves researcher investigate the areas of the brain and spinal cord affected by disorders ,as well as the genetic factors, and environment factors involved in order to synthesize an understanding of the nervous system ‘s function (Gilbert, 2002).

The central nervous system (CNS) is part of the human body which includes the brain and spinal cord (Lewis, Heitkemper, Dirksen, & Bucher, 2014). The cells of the nervous system are known as neurons, which is protected and nourished by neuroglia (Lewis et al., 2014). The spinal cord includes ascending and descending tracts which controls sensory and muscle movements (Lewis et al., 2015)

The central nervous system (CNS) is that portion of the vertebrae nervous system that is composed of the brain and spinal cord. Together with the peripheral nervous system (PNS), the other major portion of the nervous system, the CNS coordinates the body's interaction with the environment. The CNS is contained within the dorsal cavity, with the brain in the cranial subcavity (the skull), and the spinal cord in the spinal cavity (within the vertebral column).

The nervous system comprise of the CNS and peripheral nervous system. The brain and spinal cord make up the CNS, while the autonomic nervous system and somatic nervous system makes up the peripheral nervous system illustrated in figure 1 below.

The Nervous System, also known as the Central Nervous System (CNS) is composed of two complex parts, the brain and the spinal cord. The Peripheral Nervous System (PNS) is the system especially designed from the branching off of the Central Nervous System. The PNS is also a complex and extensive nerve network comprised of spinal nerves, thirty one pairs to be exact, and twelve pairs of cranial nerves located outside the brain and the spinal cord.

The nervous system is made up of neurons, or nerve cells. The neurons communicate with each other by receiving and transmitting electrochemical signals, called neurotransmission. All human behavior is made possible by the activity of individual neurons working together in the

Our nervous system and brain interact as we cope with our immediate environment. Thus, it transmits and receives our sensory inputs such as sounds, sight, smells and feelings. One end of each neuron on the nerve endings are enclosed in a structure created to sense a specific stimulus. Sending sensory information to the brain or spinal cord is performed by the nervous system. Nervous system is divided into two main systems: Central nervous system and Peripheral nervous system (Saladin, 2014). The central nervous system consists of the spinal cord and brain, the brain which is divided into four lobes (parietal, frontal, temporal and occipital). Spinal cord and brain work together even though there are some occasions when the spinal cord acts earlier before the brain gets the information.

Within the human anatomy, an intricate and complex network of specialised nerve fibres and neurons works in collaboration with the central nervous system and peripheral system, designed to carry out the various actions humans perform every day. The nervous system is also known as the master control unit of the human body, as it operates other major functions such as the circulatory and respiratory systems (Jakab, 2006). It is composed of the central nervous system (CNS) and the peripheral nervous system (PNS). The neurons established within the various sections of the nervous system, is structured with three main parts: a dendrite which is a cluster of branches that operates by receiving information from the

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

The nervous system coordinates voluntary and involuntary actions of animal bodies and is in charge of transmitting signal from one part of the body to another part. It is divided into two main systems, the Central Nervous System (CNS) that contains the brain and the spinal cord, and the Peripheral Nervous System (PNS) that includes mostly all nerves connecting the CNS to every part of the body (Martini et al., 2005). The entire nervous system relies on the good functioning of specialized cells: the neurons that convey electrical signals; and the neuroglia that is composed of several types of specialized cells with different functions either involved in the structure of the nervous system, the enhancement of the signal transmission or even in the defense mechanism.

The nervous system is critical for human survival. The human nervous system is responsible for signaling bodily functions, sensory experiences, and information processing. The nervous system consists of three major structures: the brain, the spinal cord, and the peripheral nervous system (Brodal 1-18). The brain, spinal cord, and peripheral nerves are responsible for different processes and have unique structures. The brain is divided into three substructures: the cerebrum, cerebellum, and brain stem (Nieuwenhuys, and et al). The spinal cord is a bundle of nervous tissue that extends from the brain; the spinal cord and brain together compose the central nervous system (CNS). The peripheral nervous system are the nerves that are outside of the CNS, and are responsible for connecting the CNS to organs and the limbs of the human body (Brodal 1-18). Although each structure is unique, they all consist of nerve cells called neurons, which are considered the building blocks of the nervous system and are composed of dendrites and a single axon (Gartner and Hiatt 186-218). The structure of the neuron empowers the nervous system to interpret all incoming information, such as a smell, pain, or taste, and is responsible for sending critical nerve information that initiates such functions as breathing and heart rate, all of which are essential to human vitality.

All feelings and emotions that people experience are produced through chemical changes in the brain. A lack of certain chemicals or an abundance of chemicals can lead individuals to have emotional imbalances often classifying them as more commonly and more seriously known as mental disorders. Specific chemicals cause certain moods in individuals, often times substances containing these chemicals influence the way a person may feel. Discussing what happens in the brain as it reacts to different chemical build ups will help us as individuals better understand our body and communicate and respond to these experiences in a healthier way.