The Nervous System By: Brooklynne Harris Scenario A loud crashing sound causes everyone in the room to quickly turn their heads toward the source of the noise. Describe the path of the signal through the human nervous system from initial stimulus of sound to the response of turning the head. Crash and then turn of the head The Journey The loud sound that the person heard is the stimulus. In order to hear a sound‚ sound waves have to be generated and sent to the cochlea in the inner ear. From
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The Relationship Between The Nervous System and The Endocrine System The cells and tissues in the body are delicate and easily disrupted. They will only be able to function well if all aspects of their chemical and physical environment is continuously adjusted to keep them stable and in equilibrium. The process in which several body systems work together to maintain the balanced environment is called homeostasis. The endocrine and nervous system work closely together to help maintain homeostasis
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It is amazing how some systems in our body works together in situations to help us to have the ability to react and be alert of our surroundings such as being in danger or suffering from stress which is an important factor of many health problems. The two systems that I am referring to are the endocrine and nervous systems. they help to regulate our bodies back to our normal state to help to maintain healthy functioning. There are two systems that work with one another to signal the brain when something
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Drugs and the nervous system Neurotransmitters within the body include excitatory and inhibitory‚ noradrenalin‚ dopamine‚ serotonin; acetylcholine and glutamate are examples of excitatory neurotransmitters. GABA and glycine are examples of inhibitory neurotransmitters. General anaesthetics General anaesthetics act mainly on the central nervous system to stop information processing; these may be given by inhalation or intravenously. Nitrous oxide or laughing gas is used in maintain anaesthesia
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Introduction Nervous systems are composed of circuits of neurons‚ highly specialized cells that communicate with each other and with other types of cells by electrical or chemical signals.—The central nervous system (CNS) is composed of brain and a nerve cord. The peripheral nervous system (PNS) consists of all neurons and their projections that are outside and connect with the CNS. The most basic circuits is a reflex arc‚ which occurs rapidly in response to inputs from the sensory neurons and
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Body Systems There are 10 body systems‚ one of them is the Integumentary (skin). It is composed of hair‚ skin‚ nails‚ sense receptions and oil glands. Its functionis to protect from outside‚ to regulate the body temperature‚ to make synthesis of hormones & chemicals and is used as a sense organ. Another one is the Skeletal System (bones). It is made of about 206 bones‚ that are divided in tho categories: axial bones (in the body by itself) and apendicular bones (arms & legs). We have Joints too
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generally composed of cuboidal cell or columnar cell. Exocrine glands release substances like sweat and saliva through ducts on to the surface of the body. Exocrine glands include merocrine sweat glands‚ apocrine sweat glands and holocrine glands. Merocrine sweat glands‚ also known as eccrine sweat glands‚ are present through out the body and they release sweat that contains urea‚ electrolytes and many other compounds. Because the sweat contains urea‚ it contributes to body odor. Merocrine sweat glands
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02/01/11 The Central Nervous System or (CNS) is located in the center portion of the body as its name implies. The (CNS) is made up of the brain and the spinal cord. Our brain is in control of many very important body functions and sensations like these for example: sleep‚ muscle movement‚ memory‚ sexual activity‚ emotions‚ hunger and thirst. Our spinal cord extends several types of nerve fibers from the brain acts like a switching and relay terminal for the peripheral nervous system as is stated
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there is this system called the human nervous system. There are two types of nervous systems: the peripheral and central nervous systems. The peripheral nervous system includes the nerves connecting the central nervous system to the rest of the body. It has two subdivisions: somatic nervous system and autonomic nervous system. Somatic nervous system controls skeletal muscles and interacts with the external environment. An example is walking through a park. You are using your motor nerves‚ which relay
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The nervous system is an important part of the human body. The system is made up of many different parts and each part is placed in either the central or peripheral nervous systems. These two parts work together and bring physical feelings and the proper reaction to them. The peripheral nervous system is the larger of the two systems. The peripheral nervous system consists of two more systems inside of it. The two other systems are the somatic and autonomic nervous systems. The somatic nervous system
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