The Nervous Systems Essay

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

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.

Neurons are what send nerve impulses from one part of the nervous system to the other. Neuroglia is the “glue” that holds the neurons together. (Campbell, 2016). There are multiple parts of the neuron that help to transmit the impulses. A neuron includes the cell body, nucleus, dendrites, axon, myelin sheath, and axon ending. The main portion is the cell body which holds the nucleus or DNA of the cell (Boeree, 2009). Dendrites receive the message from other neurons while axons carry the impulse to another neuron. The myelin sheath serves as insulation for the impulses so they can travel faster. The axon ending then sends the impulse on to another neuron and the process is completed for that impulse (Boeree, 2009). Nerve tissue helps to run the nervous system and the impulses sent in the body from neurons. All of the tissues of the body work together in order for the body to function and work as it

The CNS contains the brain and spinal cord. Its main functions include: processing, integrating, and coordinating sensory information and motor instructions. The sensory data conducts information that is being processed from internal and external conditions the body is experiencing. Motor commands regulate and control peripheral organs (skeletal muscles). The brain functions under memory, emotions, learning, and intelligence. The PNS consist of the neural tissue found outside of the CNS. It functions in sending data to the CNS which motor commands are than carried out to the peripheral tissues/systems. Multiple nerve fibers send sensory data and motor commands in the PNS. The nerves that assist with transmitting data include the cranial nerves and spinal nerve. However, the PNS can be divided into afferent (to bring in) and efferent (to bring out) divisions of transferring data. The afferent division functions in bringing in sensory data to the CNS. Sensory structures are receptors that detect internal/external environmental change and adjusting accordingly. The efferent division functions in carrying out motor commands from the CNS to glands, muscles, and adipose tissue. The efferent division contains somatic

In the nervous system we have several systems of cells, tissues, and organs that allow the body to properly function. Meanwhile, our nervous system is divided into two systems known as the Central Nervous System (CNS) and Peripheral Nervous System (PNS).

The nervous system is made up of neurons that take in information through our senses and then processes it to the rest of the body(IQWig 2012). After this, motor neurons send a signal from the nerve cell in the brain, to the brain stem, down the spinal cord, and cause a reaction in the muscular system (NINDS 2014). An example of this would be

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

As discussed in class, from the Human Anatomy and Physiology 9th edition by Marieb and Hoehn (2013), our bodies have billions of neurons, also called as nerve cells. Every neurons contains something called dendrites, which looks like branches, and an axon joined by the axon hillock. The dendrites are part the receives the information from another neuron

The nerves system by definition is the system of nerves and nerve centers in an animal or human, including the brain, spinal cord, nerves, and ganglia. The nervous system is an intricate collection of nerves that sends signals between parts of the body, basically the body’s version of electrical wiring. Structurally, the nervous system is split into two components: the central nervous system and the peripheral nervous system. The Central Nervous System consists of the brain and spinal cord while the Peripheral is made up of the cranial nerves, spinal nerves, plexuses and peripheral nerves. Functionally, the nervous system has two main subdivisions: the somatic(voluntary); and the autonomic(involuntary). The autonomic nervous system regulates

Brain stem- initial portion of the brain that contains the medulla oblongata, pons, and midbrain

The nervous system is a complex network of nerves and cells that transmit signals and carry messages between different parts of the body (Zimmermann, 2018). It is the body’s electrical wiring. The nervous system has two components: the central nervous system (CNS) and the peripheral nervous system (PNS). The CNS is the part of the nervous system that consists of the brain and spinal cord (Myers & Dewall, 2014). The PNS is the sensory and motor neurons that connect the CNS to the rest of the body (Myers & Dewall, 2014). Essentially the CNS makes the decisions and the PNS gathers information from the rest of the body, it then transmits the CNS

Peripheral nervous system – this system is made of neurons which is usually known as nerves cells this system wrap the inner organs this goes through the skin, muscle, brain and spiral cord. The function of this system allows the body to get all the signal it

The nervous system is an especially complex and highly specialized network of cells that are responsible for controlling all voluntary and involuntary actions in the human body. It is also responsible for the communication between the many different parts of the body. The nervous system is divided into many subsystems, but structurally, it is comprised of the central nervous system (CNS), and the peripheral nervous system (PNS). Other functional subsystems include the enteric nervous system (ENS), the somatic nervous system (SNS), and the autonomic nervous system (ANS), which can be further divided into two components; the sympathetic and parasympathetic nervous systems.

The nervous system of the body is the communication and control network it comprises of the central nervous system (CNS), peripheral nervous system (PNS) and the autonomic nervous system (ANS).The brain and the spinal cord comprise to form the CNS, this is the body’s main control centre. The PNS is a complex network of nerves branching across the whole body, 12 pairs of cranial nerves originate from the brain and 31 pairs of spinal nerves originate from the spinal cord. These nerves transmit information between the body and the brain via nerve impulses. The ANS shares nerve structures with both the CNS and PNS, it functions automatically with no conscious awareness to control the body’s basic functions like heart rate. In the PNS there are two divisions; afferent and efferent. The afferent division controls signals sent to the brain and the efferent division controls message from the brain to the body. Sensory inputs travel via the afferent division to signal the brain for processing, co-ordination and interpretation. The brain makes a suitable decision to the signal sent and