Types Of Aphasia And The Nervous System

Expressive (motor) Aphasia is a neurological condition that occurs when words cannot be formed, expressed, or may be absent due to an injury to the cerebral cortex. (Brooks & Brooks, 2012).

The nervous system is one of the body’s complex functions that contain a network of cells and nerves that transmit signals from the brain and spinal cord to different areas of the body. It is categorized into two groups; the central nervous system which is made up of the brain and spinal cord, and the peripheral nervous system which contains the body’s nervous tissue and is where neurologic responses occur. Homeostasis, which is the process in which thermoregulation is maintained, also happens in this area.

In the organization of the Human Nervous System it is divided into sections such as the sensory system, which gathers and process information from the surrounding environment: motor systems which responds from environment by sending signals and information to facilitate movement behavioral responses and the associational system which is a meditator from most multifaceted and least problematic brain functions. Within these different functions of the nervous system it is divided into two components where these functions can happen the central nervous system that comprises of brain and spinal cord and peripheral nervous system that embodies nerves and ganglia.

The central nervous system is made up of the brain and spinal cord. The brain is connected to the spinal cord. The brain helps interpret information received from the spinal cord. Through the spinal cord signals are sent to the rest of body and back to the brain. Nerve cells (neurons) are found in the nervous system and they help communicate with other cells through electrical signals. Some of the nerve cells are coated with a myelin sheath. Myelinated neurons allow electrical signals to travel at a faster speed. When the myelinated part of the nerve cell is destroyed, Multiple Sclerosis (MS) can be the one to blame.

The nervous system is a chain of interconnected nerve fibers which is constructed by the central nervous system and Peripheral nervous system. The job of the nervous system is to send messages from the brain and spinal cord to different parts of the body.

Human beings occasionally suffer bad damage to particular parts of their brains. Unfortunately, these injuries may lead to major failure of speech production, understanding language and comprehension which most of the patients suffer it permanently. This impairment is called Aphasia. Gayle (2012) states that people with aphasia fail to understand sentence comprehension although it is a simple sentence. She also mentioned that aphasia patients also have difficulty in reading and understanding speeches. According to Fromkin, Rodman and Hyams (2011), aphasia is a scientific term used to explained language disorder due to brain injuries caused by diseases or trauma. In other words, aphasia involves partial or total loss of the ability to

The nervous system is associated to many neurological diseases including strokes, Alzheimer’s disease, Parkinson’s disease, sleep disorders, and spinal cord injuries. Spinal cord injuries arise to be extremely common, in fact, each year in the United States there are ten thousand new spinal cord injuries alone (Spinal Cord Injury). The spinal cord is an immensely fragile part of the body, it contains a bundle of nerve fibers that connect the brain to the rest of the body. Since the spinal cord is exceptionally fragile it has to be protected by something hard, like the vertebral column. The brain, spinal cord, and the vertebrae is considered the central nervous system, whereas, the peripheral nervous system is formed when the nerves that enter and exit the spinal cord (Boyce). When the spinal cord, brain, or vertebral column becomes damaged, the individual has a higher risk of developing paralysis. Since the nervous system contains all three parts of the nervous system, paralysis is diagnosed as a neurological injury.

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

The Nervous system is a very unique and complex body system, with many diseases. Alzheimer's disease and Epilepsy is only a couple of the diseases that can happen within the Nervous

The human nervous system is divided into two parts, the central nervous system and the peripheral nervous system. The central nervous system, CNS, is just the brain and spinal cord. The peripheral nervous system, PNS, includes the nerves and neurons that extend outwards from CNS, to transmit information to your limbs and organs for example. Communication between your cells is extremely important, neurons are the messengers that relay information to and from your brain.

The nervous system is figuratively a command center of various organisms, including humans, in which its primary role is to receive and send messages. These messages are carried by nerve cells, known as neurons. The two major components of the system are the Central Nervous System (CNS) and the Peripheral Nervous System (PNS) (Eunice Kenedy Shiver National Institute of Child Health and Human Development 2013). Previous educational research demonstrate that the CNS contains the brain and the spinal cord. The brain, one of the most important organ, is also made up of many parts, where each part has its own roles, such as the control over awareness, movements, sensations, thoughts, speech, and memory. For instance, the occipital lobe, which is

The nervous system is responsible for sending out signals from the brain all over the body in order to perceive, understand, and react to the world around us. The nervous system is divided into two parts: the central nervous system and the peripheral nervous system. The brain and the spinal cord make up the central nervous system. Nerve fibers that branch off of the spinal cord make up the peripheral nervous system. These nerve fibers are all throughout the body including internal organs, skeletal muscle, neck, arms, torso, and legs.

Aphasia is a language disorder that can be the result of a brain injury. An individual that is suffering from aphasia may experience difficulty speaking, writing, reading, or comprehending. There are three different types of Aphasia that differ in various ways. First, Wernicke’s Aphasia is the inability to grasp the meaning of words and sentences that have been produced by another individual. This type of aphasia is also known as “fluent aphasia” or “receptive aphasia”. Wernicke patients’ speech may come across like a jumble of words or jargon, but it is very well articulated and they have no issue producing their own connected speech. If the patient is consecutively making errors, it is common for them to be unaware of their difficulties, and not realize that their sentences don’t make sense. The severity of the disorder varies depending on the patient, and the disorder results form damage in the left posterior temporal region of the brain, which is also known as Wernicke’s area.

As Thompson states, “A sufferer of Broca 's aphasia may understand completely the sentences of others. However, he may not be able to speak at all, or may speak in sentences that are hard to understand” (Thompson, 2013). Toivonen, a professor at Carleton University, discussed the significance of information flow in the brain using the example of reading out loud. This example illustrates the phenomenon that when an area of the information pathway is damaged, correspondingly, the message-relay can become interrupted. First and for most, the process of articulating begins with the Wernicke’s area of the brain activating when an individual accesses and interprets the lexicon, their mental dictionary. From there, the arcuate fascicles, a bundle of nerve fibres, transmits information sent from the Wernicke’s area to the Broca’s area. The Broca’s area then interprets this information and transmits articulatory information to the motor cortex. Finally, the motor cortex directs movement of the muscles to produce and pronounce speech. (Toivonen,