Essay Example on Neurotransmitters play an important role in maintaining Homeostasis









Neurotransmitters play an important role in maintaining homeostasis and facilitating communication or coordination between different parts of the body Neurotransmitters are the chemicals that allow the transmission of signals from one neuron to the next neuron across synapses The neurotransmitter that is present in the nervous system is Acetylcholine Acetylcholine is released by a nerve cell or neuron and causes muscles to contract activate pain responses and regulates endocrine and REM functions Several diseases such as Parkinson's disease drugs such as LSD and neurotoxins influence or change the ability of a neurotransmitter to function The nervous system has three main functions which are sensory integration and motor The sensory function of the nervous system involves collecting information from sensory receptors that monitor the body's internal and external conditions The integration function of the nervous system involves the processing of the many sensory signals that are passes into the central nervous system at any given time The motor function of the nervous system involves stimulating efferent neurons which carry signals from the gray matter of the central nervous system through the nerves of the peripheral nervous system to the effector cells The nervous system consists of the brain spinal cord sensory organs and all the nerves that connect to these organs with the rest of the body 

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These organs are responsible for the control of the body and communication among its parts There are two parts of the nervous system the central nervous system and the peripheral nervous system The central nervous system consists of the brain and the spinal cord since the brain and spinal cord are inside the skull and vertebrae its being protected by the bones The central nervous system is where information is evaluated and where decisions are made The peripheral nervous system consists of the sensory nerves and sense organs they monitor conditions inside and outside of the body and send the information to the central nervous system The peripheral nervous system also has efferent nerves that carry signals from the control center to the muscles glands and organs to regulate their functions Unlike the central nervous system the peripheral nervous system is not protected by any bones The central nervous system acts as the control center of the body by providing its processing memory and regulation systems The central nervous system takes all sensory information from the body's sensory receptors to stay aware of the body's internal and external conditions Using this information the the central nervous system makes decisions to maintain the body's homeostasis The peripheral nervous system is help maintain homeostasis in the body because it's what connects the brain to the limbs the peripheral nervous system are the nerves that carry instructions from your brain to the limbs they work together to maintain homeostasis the central nervous system makes the decisions and the peripheral allows for the decisions to be done Action potential is the reversal of electric polarization of the membrane of a nerve cell or muscle cell In the neuron an action potential produces the nerve impulse and in the muscle cell it produces the contraction required for all movement 

Action potentials are caused when different ions cross the neuron membrane What causes sodium channels to open is a stimulus There are many more sodium ions on the outside and so it makes the outside positively charged and inside of the neuron is negative sodium ions rush into the neuron The neuron becomes more positive and become depolarized because it has a positive charge It takes longer for potassium channels to open when they do the potassium rushes out of the cell reversing the depolarization Sodium channels start to close as well in which this causes the action potentials to go back to 70mV which is a repolarization Parkinson's disease is one of many things that influence or change the ability of a neurotransmitter to function Parkinson's disease is a disease that affects movement since it is a disorder in the central nervous system Parkinson's disease targets the neurotransmitter dopamine which is produced in the brain and is a chemical messages signals responsible for the body s movement The neurotransmitter dopamine is an inhibitory neurotransmitter When dopamine is elevated or low issues will occur with focusing or affect our motivation Dopamine is an important neurotransmitter because its responsible for many functions such as movement memory attention mood and even processing pain and so much more It is a chemical released by neurons to send signals to other cells During Parkinson's disease dopamine producing nerve cells begin to die off and this affect the nervous system because dopamine is an important neurotransmitter that allows movement and if dopamine producing nerve cells are lacking the nervous system won't be able to send these signals to limbs from the brain to cause movement Parkinson's disease affects the body in many ways one of the most important is movement Since the dopamine is lacking in the body things such as movement memory mood motivation and more are being affected negatively 

Some symptoms of Parkinson's disease are tremors problems with movement stiffness slowed movements and trouble with balancing and maintaining posture There are many ways to treat it like physical and occupational therapy drugs like levodopa carbidopa and more Parkinson's disease is caused by loss of neurons that produce dopamine Symptoms of Parkinson's disease usually occur after the age of 50 The reason for its development is still unknown There is no cure for Parkinson's disease but there are treatments like therapy etc

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