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Transcript of Nervous System
Example: Our eyes have built in receptors that are sensitive to light. Neurons ONLY transmit information in one direction, however nerves allow a two-way flow of information. The general purpose of the nervous system is for the brain to send and receive signals from different parts of the body.The nervous system is a key component to the human body, it allows our body to respond to the outside world and to the internal environment.
The nervous system is in control of how other systems work within the human body, it tells the respiratory system when to increase the breathing rate, the circulatory system when the heart should beat faster, and when we should start eating and drinking or when to stop. An additional function to the brain is perception: interprets and makes sense of all the information we recieve from our environment. BRAIN SPINAL CORD Peripheral Nervous System To sum it up... The End Relevance to Skeletal System - bones provide calcium which is essential
for the nervous system
- protection to Central Nervous System
- sensory receptors in joints send signals about
- brain regulates position of bones by controlling
muscles http://www.google.ca/imgres?um=1&hl=en&rlz=1C1ASUT_en-GBCA465CA465&biw=673&bih=646&tbm=isch&tbnid=skmQcg-3bbFBPM:&imgrefurl=http://www.allposters.com/-sp/Human-Male-Figure-Showing-Skeletal-and-Nervous-Systems-Posters_i9008747_.htm&docid=-qaskne-wNbgXM&itg=1&imgurl=http://imgc.allpostersimages.com/images/P-473-488-90/64/6475/DUB6100Z/posters/carol-mike-werner-human-male-figure-showing-skeletal-and-nervous-systems.jpg&w=366&h=488&ei=F72RUNGeCO7h0wGy84HABw&zoom=1&iact=rc&dur=6&sig=108749061773775735548&page=2&tbnh=150&tbnw=113&start=17&ndsp=20&ved=1t:429,i:175&tx=42&ty=34 http://www.google.ca/imgres?um=1&hl=en&sa=N&biw=1280&bih=827&tbm=isch&tbnid=_MiJefxNo5ErbM:&imgrefurl=http://en.wikibooks.org/wiki/Human_Physiology/The_Nervous_System&docid=CsyJosYtYtsmmM&imgurl=http://upload.wikimedia.org/wikipedia/commons/b/ba/Nervous_system_diagram.png&w=421&h=695&ei=baeKULGyNsWQ2QWJjYHgDQ&zoom=1&iact=hc&vpx=179&vpy=111&dur=640&hovh=289&hovw=175&tx=112&ty=134&sig=106016437669360560160&page=1&tbnh=156&tbnw=94&start=0&ndsp=28&ved=1t:429,r:0,s:0,i:71 https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcQajq1cMRZ7taDUQXlMsl0MRsGa5uUHL6RXcNGZoqolx0ui630xYA Relevance to Skeletal System Relevance to Muscular System - somatic nervous system controls the contraction of
skeletal muscle (voluntary, conscious control) e.g. arms
- autonomic nervous system controls smooth muscle
(involuntary, not conscious control) e.g. digestive system Relevance to Muscular System http://www.google.ca/imgres?um=1&hl=en&sa=N&rlz=1C1ASUT_en-GBCA465CA465&biw=673&bih=646&tbm=isch&tbnid=QrES7vKeTvjtOM:&imgrefurl=http://uvahealth.com/services/neurosciences/conditions-and-treatments/432316&docid=j4a2qkybIVFV5M&imgurl=http://uvahealth.com/Plone/ebsco_images/7757.jpg&w=242&h=394&ei=N8SRUJKMNsaZyQG2_YHADw&zoom=1&iact=hc&vpx=73&vpy=101&dur=3497&hovh=287&hovw=176&tx=114&ty=166&sig=108749061773775735548&page=1&tbnh=139&tbnw=87&start=0&ndsp=15&ved=1t:429,i:72 Equine Nervous System - contains central, peripheral, and autonomic
nervous system ( CNS, PNS, ANS)
- central: very similar to human system
- peripheral : sensory and motor nerves
- sensory: info from body parts to CNS
- motor: infor from CNS to body parts
- autonomic: symathetic and parasympathetic
- symathetic: governs "fight" or "slight" reaction, alerts the horse to unpleasant circumstances
- parasympathetic: governs pleasant times, resting, sleeping, digesting Equine Nervous System http://www.google.ca/imgres?um=1&hl=en&rlz=1C1ASUT_en-GBCA465CA465&biw=673&bih=646&tbm=isch&tbnid=y00Lk0NlGYebPM:&imgrefurl=http://en.wikibooks.org/wiki/Anatomy_and_Physiology_of_Animals/Nervous_System&docid=qP-zrUMJeuQjvM&imgurl=http://upload.wikimedia.org/wikipedia/commons/e/e4/Horse_nervous_system_labelled.JPG&w=679&h=412&ei=4sqRUOXIMPPG0AGZkYHgBw&zoom=1&iact=hc&vpx=99&vpy=162&dur=947&hovh=175&hovw=288&tx=161&ty=111&sig=108749061773775735548&page=1&tbnh=133&tbnw=205&start=0&ndsp=11&ved=1t:429,i:66 Inflammation of the nerves or blood vessels connected to the brain, hemorrhage in or around the brain, changes in cerebrospinal fluid pressure, development of a brain lesion , head injury, and central nervous system infection can all lead to migranes. Treatment may be neccesary. Seizures are an overactivity of the cells of the brain which effects different areas of the central nervous system, mostly in the forebrain. The effects of seizures depend on their location in the brain and how severe they are. Somatic Nervous System Autonomic Nervous System The autonomic nervous system handles the involuntary actions of the body.This systems consists of two components called the sympathetic nervous system and parasympathetic nervous system. Both of these types of nerves are spinal nerves.
Sympathetic = typically functions in actions requiring quick responses such as fight or flight responses, digestive system stops, heart races to provide abundant oxygen to the muscles.
Parasympathetic= functions with actions that do not require immediate reaction such as relaxed state, digestion occurs as normal, heart is at a steady paced rhythm, urination, eating, sexual activity and many more. The somatic nervous system is apart of the peripheral
nervous system. It controls all the voluntary actions of
body. This system is made up of two sub-parts; the afferent and the efferent. Afferent - the afferent neurons send impulses from the sensory organs to the brain
Efferent - the efferent neurons send impulses from the brain to the muscles Relevance to Circulatory System The nervous system of course needs nutrients to be brought to it and waste molecules to be taken away, this is accomplished by the circulatory system. The involuntary acts performed by the nervous system also controls heart rate, which is a part of the circulatory system as well. Controlling body heat is also its function, which regulates the heart functions as well as blood circulation