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How Does The Nervous System Work

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The Nervous System
What is the Nervous System and how does it work? The Nervous system is a complex System made up of many smaller complex system. The Nervous system is the system of your body that controls all of your nerves the nerves that connect to your senses, brain, spinal cord, and many other things.
The Nervous system is one big system that is made up of many systems the control all the nerves in your body. The nervous system has two main parts the Peripheral nervous system and the central nervous system. The Central nervous system is made up of the brain and the spinal cord. The brain and the spinal cord are made up of the Forebrain, Midbrain, and Hindbrain. The Peripheral Nervous System is made up of the Autonomic Nervous System …show more content…

The Autonomic NS regulates the process of breathing and digestion. The Autonomic System is made up of the Sympathetic system an and the parasympathetic system. The actions of the Sympathetic system is to speed up the heartbeat, sending blood to the muscles and helping eyes to use light. The parasympathetic system is to slow down the heartbeat and not sending blood to the muscles and the stomach and other internal organs. “Nervous System” The Autonomic system is made up of two systems that have the opposite effect but on the same set of organs. The Sympathetic nervous system is used during emergency also know as the flight or fight response. The Sympathetic nervous system is suppose to dilate the pupils, make your heartbeat faster, make you breathe faster, etc. The Parasympathetic system is also known as the relaxed state. Which does the exact opposite of the Sympathetic nervous system which means it slows your heartbeat regulates your breathing etc.(Life …show more content…

They are the sensory neurons they transmit and carry messages to the central nervous system. The motor neurons which relay information from the nervous system to other parts of the body. "Somatic Nervous System Definition, Function, and Example” The main role of your Somatic Nervous System is to connect the central nervous system to the organs, muscles, and skin. This is so that you can make complex movements. The somatic system also sends messages to the nerves that have to do with your senses. Sensory/afferent neurons carry impulses to the central nervous system and the brain. After being processed the somatic system takes the message back to the muscles and sensory organs. There are 12 pairs of cranial nerves and 31 pairs of spinal nerves which are made up of sensory cells and motor cells while others have both. Smelling and seeing only have sensory cells. Eyeball movement (not vision) and hearing only have motor cells. While others like taste and swallowing have both. ("Somatic Nervous System Definition, Function, and Example) The somatic nervous system also have nerve fibers that pick up sensory. For example if you touch something hot the motor nerve fibers carry information to the brain telling it there is something hot so the nerve tells your hand to withdraw from the hot object. “Function of the Nervous

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• Sensory Sensory nerves transmit sensations such as touch and pain to the spinal cord and from there to the brain, • Autonomic. Autonomic nerves control the caliber of blood vessels, heart rate, gut contraction and other functions not under conscious control. Local anesthetic solution injected into the subarachnoid space blocks conduction of impulses along all nerves with which it comes in contact, Dorsal sensory roots are blocked more easily than the smaller anterior roots due to the organization of the dorsal root into bundles which expose a larger surface area to local anesthetic solutions.

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The Somatic nervous system has two neutrons. Those two neutrons are sensory neurons and motor neurons. The sensory neurons job is to carry information to the central nervous system. The motor neurons job is to carry information from the brain and spinal cord to the muscle fibers throughout the

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Neurons in our brain are constantly communicating by releasing chemical signals or neurotransmitters across the synapse of one neuron to another. Action potential is important for how neurons communicate. When an action potential reaches the axon terminals, the neurotransmitters packaged in vesicles are able to release the information to the other neurons' synapse. The axon hillock of the nerve cell, which is the beginning of the axon, is where action potentials are generated. The action potential propagates throughout the axon, the long part of neuron, where an exchange of ions occur.

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The parietal lobes are where information such as taste, temperature (warmth, cold), and touch are interpreted or processed. Lastly, the somatosensory cortex receives all sensory input from the body.

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According to Martini, F., Tallitsch, R., Nath, J., (2018), the ANS functions outside of our conscious awareness and makes routine adjustments in our body’s systems (Martini, Tallitsch, & Nath, 2018, p. 450). The autonomic nervous system helps maintain the homeostasis of our bodies by regulating body temperature and coordinating cardiovascular, repertory, digestive, excretory, and reproductive functions. Efferent axons innervate the visceral organs and the efferent nerve fibers and ganglia of the ANS organize in two systems or divisions. The sympathetic division and the parasympathetic division. The sympathetic division is most active during times of stress, exertion, or emergency, also known as “flight or fight”.

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For example, when picking up an object if it is thorny, or extremely hot your sensory neurons sends signals to your brain telling you to let release it in order not to harm

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This part of the process occurs when the sensors on your skin are activated, they send electrical impulses to your neurons. Neurons are specialized cells that transmit nerve impulses; a nerve cell. These neurons travel through the nervous system, which is the network of nerve cells and fibers that transmit nerve impulses between parts of the body. A type of neurons called the sensory neurons convey this information to the spinal cord, also known as the central nervous system. Then the spinal cord takes the incoming signals and sends it to the brain for processing and

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The muscular system is very important for everyday life. Without it we wouldn't be able to carry out everyday tasks such as writing this paper or tying our shoes or anything. This system also helps us distribute wastes when our body doesn’t need them anymore, which is important because if the wastes build up the toxins will enter your system the wrong way and it will harm you eventuly. This system interacts with the many other systems but the main two are the nervous system and the digestive system. The nervous system is what controls the brain and the brain tells us to move certain parts of our bodies without us knowing it, this is how our involuntary muscles move.

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Every single movement that bodies make, millions of neurons fire off signals up to 268 miles per hour to indicate to the brain that something happened! (“15 Fascinating Facts You Didn’t Know About Your Brain, safelaunch.org”) It is so vital to human life that almost nothing can survive without it. Almost every animal on Earth has a Nervous System, which includes the brain, and, many, a spinal cord, and networks of nerves that run through bodies. Humans are no exception.

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