The Nervous System ( Cns )

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 all parts of the body. The nervous system monitors and coordinates internal organ function and responds to changes in the external environment. This system can be divided into two parts: the central nervous system and the peripheral nervous system. Let 's take a look at the central nervous system.

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 the most complex part of the body, as they govern our thoughts, feelings, and bodily functions. It is an important factor in science because it can lead to new discoveries for cures or diseases. The studies of the nervous system helped lower death rates from heart disease, stroke, accidents, etc. The nervous system is a network of neurons (nerve cells) that that sends information to the brain to be analyzed. Neurons live both in and outside the central nervous system. Understanding how the neurons work is vital to understanding the nervous system. Neurons The neuron has two important structures called the dendrite and axon, also called nerve fibers. The dendrites are like tentacles that sprout from

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.

1.What are the 2 main divisions of the nervous system and the basic structures that make

The brain and spinal cord make up the central nervous system (CNS), with the brain coordinating higher-level functions and the spinal cord relaying information from and to the peripheral nervous system (PNS). The CNS is contained within the dorsal cavity, with the brain protected by the skull and the spinal cord protected by the vertebrae. Despite this, injuries to the CNS are a global health problem because of the inability of central neurons to regenerate, unlike peripheral neurons. Injury to the CNS is initiated by mechanical impact, but the resulting cellular processes and biochemical events contribute significantly to the pathophysiology. Traumatic brain injury (TBI) and traumatic spinal cord

The central nervous system (CNS) that is one of the main parts of the nervous system in the body which consists of the brain and spinal cord. [1] Unlike the other systems, CNS controls many jobs at the same time. Some of these functions are controlling voluntary movements such as walking and involuntary movement such as digestion. [1] “It is also the core of our thoughts, perceptions, and emotions.” [1] Unfortunately, there are many diseases that can disable CNS partially or even totally, and one of these diseases is multiple sclerosis (MS). This essay will define MS and cover the main characteristics, the symptoms, and the types that exist.

The action that is required for standing up is for the muscle to contract in the lower portion of the body from the gluteus maximum to the Gastrocnemius muscle.

Cnidarians do not have a central nervous system (no local concentration of nerve cells, no brain), but the anemones simple differentiated nervous system works much the same. Arrangements of nerve cells within a loose network called nerve nets process and respond to stimuli much like a brain would. For example, in response to stimuli, nerve cells emit electrical impulses through the nerve net to all parts of the anemone’s body, causing contractions in the anemone’s muscles. The result is movement.

The central nervous system is composed of our spinal cord and brain which consistently controls our mind and behavior. The complexity of our brain is not entirely deciphered, but with extensive scientific research it can be concluded that each specific section has its own specialized function. In reference to eating pizza, socializing, and playing a game of cards, it can be deduced that our central nervous system is always critically analyzing data using our Broca’s area for speech, hippocampus for memories, hypothalamus controlling internal body, and occipital lobe organizing visual stimuli.

The peripheral nervous system (PNS) is connected directly to the central nervous system, and consists of neurons and nerves that send information back and forth the CNS. Furthermore, the peripheral nervous system can be divided into two sections, the sensory nervous system and the motor nervous system. The Sensory The sensory nervous system is in charge of transmitting data from a variety of internal organs or from external stimuli to the central nervous system using sensory nervous cells. On the other hand, the cells of the motor nervous system (motor neurons), take the impulse from the CNS to effectors, which include glands and muscles. In addition, the motor nervous system can be further divided into the somatic nervous system, controls voluntary actions of the skeletal muscle and external sensory organs, whilst the autonomic nervous system operates

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

Neuroscience, commonly referred to as Neural Science, is the study of the way the nervous system develops, how it is structured and the functions of it. Scientists put emphasis on the brain and the impact it has on behavior and cognitive functions. These scientists approach a closer look on the reactions the nervous system has when humans have neurological, psychiatric and neurodevelopmental disorders. The entire concept of neuroscience is addressed as a subdivision of biology. It is applied to chemistry, cognitive science, engineering, mathematics, linguistics and more. Scientists say that neuroscience is identical as neurobiology but there is a difference between the two conceptions. Neurobiology focuses mainly on the biology of the nervous system and neuroscience emphasizes on any portion of the nervous system. Neuroscientists have various fields of study that include cellular, functional, computational and medical aspects of the nervous system.