Emily Muñoz 1/7 period Nervous System The nervous system consist of all the nerves the body has. Controlling not only the actions the body takes but the emotions a human being feels. The spinal cord‚ brain‚ and many nerves revolve around the nervous system. There are three overlapping functions that use millions of sensory receptors‚ that monitor the body. By monitoring the body the functions detect any changes the human body has had.Two components separate the nervous system allowing us to focus
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CENTRAL NERVOUS SYSTEM The Brain -recap * The brain receives signals from inside and outside the body. * It keeps the basic‚ body functions such as heart beat rate‚ breathing rate and temperature control ticking over‚ without us having to think about it. * It also allows us to decide to do things like running and walking and many more complex tasks. It is where our personalities and moods and emotions come from. * The brain of a human being makes up about one-fiftieth of
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evidence‚ explain the effects of one neurotransmitter on human behavior. Neurotransmitters are chemical messengers‚ which send signals and communicate information through neurons (nerve cells)‚ cells‚ our brains and our bodies. Neurotransmitters are released and travel through terminals in the brain until they reach certain receptors. Neurotransmitters and their functions are located and carried out in different sections of the brain. It uses neurotransmitters to make your body carry out certain
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show the difference in heart rates before and during intense exercise. Aim: The aim of the investigation was to discover how the heart rate varied with the intensity of exercise. The heart rate is a term describing the regularity of the cardiac cycle. The heart rate is the amount of times it contracts (beats) in a unit of time‚ nearly always per minute. At rest the adult female’s heart rate regulates 75 bpm (beats per minute) but this varies between people. If the heart rate is measured before‚ during
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receptor on the surface of heart muscle cells for adenosine. In fact‚ it is caffeine’s blockade of the A1 adenosine receptor in the heart that causes the heart to pound after a significant caffeine dose. Caffeine and similar compounds also inhibit a class of enzymes known as cyclic nucleotide phosphodiesterases. These enzymes are‚ in part responsible for degrading a stimulatory signal produced when excitatory neurotransmitters activate different neurons in the central nervous system (CNS). Thus‚ when they
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10/21/14 Nervous system: one of the eleven major body organ systems in animals; coordinates and controls actions of internal organs and body systems; receives and processes sensory information from external environment; coordinated short-term reactions to these stimuli. Cell body: the part that contains the nucleus and most of the cytoplasm and the organelles. Axon: sends messages away from the cell body to other neurons. Dendrite: short‚ highly branched fibers that carry signals toward the cell
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Central Nervous System Stimulants Types Stimulants can range from mild legal forms like caffeine to severe illegal drugs like methamphetamines. Each type has different effects at different levels and all can be lethal if taken in excessive quantities. The first type is the cocaine family which consists of cocaine HCL‚ cocaine freebase or crack‚ and cocaine paste. Then there are a wide arrange of amphetamines which are synthetic versions of the ephedra plant like Adderall which is used to help with
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The nervous system is made up of millions of neurons and interconnected nerves that are comparable to a wiring system. The nervous system is composed of the central nervous system (CNS) and the peripheral nervous system (PNS). The nervous system functions like a corporate giant. The CEO is the leader in the CNS and the officers and delegates are the PNS. The CNS gives the commands and the PNS follows the commands. The Central Nervous System The central nervous system (CNS) is
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neurogenic hearts. The myocardial cells need neural input from the cardiac ganglion to be able to beat whereas the myogenic hearts of vertebrates will beat without neural input. The neural input sets the resting heart rate and contractile force of the neurogenic heart. The heart rate of the neurogenic and myogenic hearts is regulated by neurotransmitters. Hearts in vertebrates are excited by epinephrine and serotonin although with varied effects and inhibited by acetylcholine. Invertebrates’ heart rates
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Relationship and Differences between the Central and Peripheral Nervous Systems 73211 Brain & Behaviour Assignment Two The Open Polytechnic of New Zealand 3264 words CENTRAL AND PERIPHERAL NERVOUS SYSTEMS “From the brain‚ and from the brain alone‚ arise our pleasure‚ joys‚ laughter‚ and jokes‚ as well as our sorrows‚ pains‚ griefs‚ and tears. Through it‚ in particular‚ we see‚ hear‚ and distinguish the ugly from the beautiful‚ the bad from the good‚ the pleasant from the unpleasant
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