muscular activity. The supply of oxygen is also increased. The increased supply of oxygen necessitates an increase in the rate of respiration‚ heart beat and increased blood flow via blood vessels. When physical exercise is stopped‚ the activities of nerves‚ lungs‚ heart and kidney gradually return to their normal conditions. Thus‚ the functions of muscles‚ lungs‚ heart‚ blood vessels‚ kidney and other organs are coordinated while performing physical exercises. In our body the neural system and the
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Exercise 3: Neurophysiology of Nerve Impulses: Activity 1: The Resting Membrane Potential Lab Report Pre-lab Quiz Results You have not completed the Pre-lab Quiz. 08/28/12 page 1 Experiment Results Predict Question: Predict Question: Predict what will happen to the resting membrane potential if the extracellular K+ concentration is increased. Your answer : b. The resting membrane potential will become less negative. Stop & Think Questions: What is the polarity of the resting membrane potential
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Cell Membrane Transport Cell Membrane Transport Hands-On Labs‚ Inc. Version 42-0034-00-01 Lab Report Assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a su Premium 609 Words 3 Pages Diffusion and Osmosis of Solutes and Water Across a Membrane Diffusion and Osmosis of Solutes and Water Across a Membrane Brittany Bacallao Nova Southeastern University Abstract: This experiment gave a visual understanding
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Neurophysiology of Nerve Impulses Activity 8: Chemical Synaptic Transmission and Neurotransmitter Release (20 points total) Notes: • After reading the Overview and Introduction‚ Click on Experiment. • Follow the directions on the left side of the menu to complete the lab. Use the data chart to answer the following questions. You do not have to submit your lab to be recorded. Lab Analysis Questions (5 points each) 1. What is the purpose of a neurotransmitter? 2. Which chemical
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Exercise 3 Neurophysiology of Nerve Impulses Activity 1 1. What happens to the resting membrane potential when extracellular K+ concentration is increased? -The resting membrane potential will become more positive when K+ concentration is increased. 2. Explain why the resting membrane potential had the same value in the cell body and in the axon. -The resting membrane potential has the same value in the cell body and the axon because the typical resting membrane potential is the same throughout
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mechanoreceptors found in the ears. Oooh‚ that smell: Olfaction Olfactory cells line the top of your nasal cavity. On one end‚ olfactory cells have cilia — hair-like attachments — that project into the nasal cavity. On the other end of the cell‚ are olfactory nerve fibers‚ which pass through the ethmoid bone and into the olfactory bulb. The olfactory bulb is directly attached to the cerebral cortex of your brain. As you breathe‚ anything that is in the air that you take in enters your nasal cavity: hydrogen
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BIOLOGY Are eyes enough to enjoy this natural splendour ...? Didn’t you notice the picture drawn by Raju and its caption? What is your opinion about the caption? You too might have got the opportunity to enjoy such scenes from nature. What have your blissful experiences in such situations been? — — — — — Colourful scenes The chirping of birds The gentle pat of the breeze The intoxicating fragrance of flowers The honey-sweetness of mango 7 BIOLOGY Though these are different experiences
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systems. Cnidarians have a network of loosely arranged nerve cells throughout their bodies‚ forming a nerve net. Flatworms such as planarians exhibit a rudimentary brain with nerve cords traversing the length of their bodies. Mammals have highly evolved nervous systems. They have large brains which process information and sense organs located near the brain. The human nervous system is made up of nerves‚ the brain‚ and the spinal cord. The nerves themselves do not form one single system‚ but several
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cerebral cortex / left hemisphere i 1 2 3 ii 8 B 1m SSA helps select or identify correct words from past experience or memory / understand the language / process written words. 1m It sends nerve impulses to muscles of the mouth and face to form words. 1m It receives impulses from the eyes / optic nerve and passes impulse to visual association area. Speech association area A 1m 1m 1m 1m 1m 1m 1m Endocrine glands produce hormones which diffuse directly into the blood. Exocrine glands release their secretions
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Laboratory – Muscle Physiology A. MUSCLE TONUS Observations‚ Report and Conclusion: A. Define muscle tonus and give its importance * Muscle tonus refers to a state of slight muscular contraction maintained by synchronous impulses of low frequency‚ discharged by the spinal motor neurons. * Reflex in nature. * Muscle tonus is a small amount of tension in the muscle due to weak‚ involuntary contractions of its motor units. Muscle tonus is important in a sense that it governs the
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