Nervous System I: Ion Channels 1. What structures in the cell membrane function as ion channels? Integral Proteins 2. Ion channels are selective for specific ions. What three characteristics of the ions are important for this selectivity? 1. Charge 2. Size 3. Amount of water the ion attracts 3. Channels can be classified as either gated or nongated channels. A sodium channel that is always open would be classified as a/an __________nongated______________ channel. 4. Would sodium ions
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cultures even if chess is invented by Indian people. A player of chess is required some qualifications like he can make a decisive move in very complex situation even if under the pressure. That’s why a person who plays chess activates the central nervous system and develops positive emotional reactions. It is very good training challenging task and develop mental health in another stages for a person who plays chess. Opponents of chess have claimed that some arguments to support their arguments. Firstly
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Homeostasis Lab: The Effects of Exercise on Homeostasis Lab Write Up Introduction: The purpose of this lab is to discover the effect that various levels of exercise have on specific body parameters such as heart rate‚ body temperature‚ perspiration level‚ body color‚ and breathing rate. Homeostasis will be monitored to calculate the change in such body parameters. To find this information the subject will exercise for a controlled periods of time. At each rest‚ the subject will be recorded upon
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Session 9: The Nervous System - Assignment #2 PhysioEx Assignment : Exercise 3 Neurophysiology of Nerve Impulses Activity 1: The Resting Membrane Potential 1. Explain why increasing extracellular K+ reduces the net diffusion of K+ out of the neuron through the K+ leak channels. Increasing the extracellular K+ causes the membrane potential to change to a less negative value because when K+ ions diffuse out across the membrane they are leaving behind a net negative charge. 2. Explain
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Human Sensory Systems Objectives · Describe how sensory receptors communicate to the central nervous system. · Describe receptors that detect temperature‚ pain‚ touch and pressure‚ muscle length and tension‚ and blood pressure. · Describe the nature of vision in terms of its stimulus on the function of rod and cone cells. Introduction The function of the brain is to convey messages to different parts of the body. Messages are conveyed from a nerve cell to another nerve cell‚ muscle cell
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The Nervous System II: Ion Channels 1. List four neurotransmitters that bind to ion channels‚ these neurotransmitters are called __directly____-acting neurotransmitters. a. ACh b. glutamate c. GABA d. Glycine 2. a. The binding of ACh opens ion channels in the dendrites or cell body that permits both _sodium______ and _potassium____ to move through them. b. Which ion would move into the cell? _sodium____out of the cell? _potassium_____________ c. Which ion has the greatest electrochemical
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Homeostasis in the Human Body Homeostasis is the maintenance of a stable internal environment within tolerance limits‚ this is the restricted range of conditions where cellular operations effectively work at a consistent rate and maintain life. These conditions include temperature‚ blood glucose levels‚ pupil diameter control and many more. The body is made up of many cells. Many specialized cells group up to form a tissue. Tissues group up to form organs‚ these organs can then connect to form
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Smile A very good morning to the principal‚ honourable judges‚ teachers and my fellow friends. Are you having a bad day? Like a flower with a pleasant scent‚ your smile can draw people close enough to see inside you. A smile can change everything. Today‚ I would like to talk about “ The Power of a Smile.” Ladies and gentlemen‚ To begin‚ I believed that a smile is one of the most obvious and effective methods of non-verbal communication. It is one of the first things someone will
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All living organisms maintain a complex dynamic equilibrium‚ or homeostasis‚ which is constantly challenged by internal or external adverse effects‚ termed stressors.[4‚5] Thus‚ stress is defined as a state in which homeostasis is actually threatened or perceived to be so; homeostasis is re-established by a complex repertoire of behavioral and physiological adaptive responses of the organism Our biological stress response was designed for survival and is regulated by both the neural and endocrine
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Homeostasis is the process within mammals where the body systems work together to maintain a stable response to a fluctuating environment within the body due to changes in the external environment and input into the body. The homeostasis process is used during blood sugar regulation within the body. This is the process whereby the body uses hormones to keeps the glucose levels in the blood at a stable level to ensure the body’s optimum function. Blood sugar levels are determined by the amount of
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