The Nervous Systems Essay

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.

The Peripheral nervous system is made up of the Somatic and the Autonomic nervous systems.

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

There are two main divisions that comprise the nervous system: the central nervous system consisting of the brain and the spinal cord and the peripheral nervous system consisting of somatic and autonomic nervous systems (Kalat, 2013). The brain and the spinal cord make up the central nervous system and is responsible for the transmission of nervous impulses as well as receiving sensory information (Siegal, 1999). The peripheral nervous system, consisting of cranial nerves, spinal nerves, and peripheral ganglia, is responsible for transmitting information to the central nervous system as well as the rest of the body (Hubbard, 2013).

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

The PNS consists of nerves and ganglia, which takes information and send this to the external stimuli. Meanwhile, our CNS consists of the brain and spinal cord that processes information. When processing this information in the CNS, the functions orders come from PNS sending back to the CNS to the correct body function or organ. Our central nervous system is an involuntary action, while our PNS is a voluntary action. Examples of our PNS can range from sitting down, picking an item up,

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

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 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

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

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.

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 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

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

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