EXERCISE 3: Neurophysiology of Nerve Impulses ACTIVITY 1: The Resting Membrane Potential Answers 1. The nervous system contains two general types of cells: neuroglia cells and a. nerves. b. cell bodies. c. neurons. d. nephrons. 2. The resting membrane potential of the neuron in this lab under the control conditions was _______ mV. 3. True or False: For most neurons‚ the concentration of Na+ and K+ ions inside and outside the cell are the primary factors that determine the resting membrane
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Physiology Exercise 3 Activity 1 1. Explain why increasing extracellular K+ reduces the net diffusion of K+ out of the neuron through the K+ leak channels. Your answer: By increasing the extrecellular K+ the net diffiusion of K+ out the neuron through the eak channels is reduced. This is caused by the flow of ions following the concentration gradient of traveling from an area of high concentration to areas of low concentration. The higher concentration gradient would result in a reduced diffusions
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Review Sheet Exercise 3 Neurophysiology of Nerve Impulses Eliciting (Generating) a Nerve Impulse 1. Why don’t the terms depolarization and action potential mean the same thing? They require different things. Action potential requires depolarization and repolarization. Depolarization doesn’t require anything. 2. What was the threshold voltage in Activity 1? 3.0V 3. What was the effect of increasing the voltage? How does this change correlate to changes in the nerve? The action potential
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for stimulating the release of erythropoetin (EPO) from the kidneys‚ and EPO is a hormone responsible for stimulating the synthesis of RBCs. By having higher levels of testosterone leads to more EPO secretion resulting in higher hematocrit levels. 3. List the hematocrits for the healthy male and female living in Denver (approximately one mile above sea level) and indicate whether they are normal or whether they indicate anemia or polycythemia. 1. The hematocrit value for the healthy male: 55.
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Unit 3 Exercise 2: Guided Reading Name: ____________________________________ Course Objectives and Learning Outcomes Apply principles of composition to evaluate the effectiveness of multiple rhetorical strategies. Apply standard writing conventions to produce original essays‚ research papers and other compositions. Assignment Requirements Use the following questions to guide you through Chapters 9‚ 15‚ and 21. Respond to all of the questions using complete sentences. Required Resources Writing
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Name: ashley wible Exercise 11: Blood Analysis: Activity 2: Erythrocyte Sedimentation Rate Lab Report Pre-lab Quiz Results You scored 33% by answering 1 out of 3 questions correctly. 1. The erythrocyte sedimentation rate (ESR) Your answer : a. measures the settling of red blood cells (RBCs) in a sample of whole blood during one minute. Correct answer: c. is increased whenever fibrinogen and immunoglobulins cause the RBCs to clump together‚ stack up‚ and form a column. 2. The ESR cannot be
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Chapter 3: Tort Law Exercises True or False? 1. The standard of proof for tort actions is on a balance of probabilities. (T) 2. Many actions that were originally torts have become offences under provincial statutes. (T) 3. To prove that a defendant has committed a tort‚ a plaintiff must establish that the defendant’s actions were the sole cause of the harm. (F) 4. A fiduciary duty is an enhanced duty of care that flows from a relationship of special trust. (T) 5. The burden of proving a
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4 Exercise Endocrine System Physiology Advance Preparation/Comments Consider covering the following topics to prepare students for the simulation: • Describe the regulation of thyroid hormone secretion. • Explain the relationship between the hypophysis (pituitary gland) and the hypothalamus. • Describe the synthesis of thyroid hormones‚ thyroxine and triiodothyronine. • Explain disorders that result in goiter formation. • Review the factors that contribute to bone density. • Explain the regulation
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Exercise 3: Neurophysiology of Nerve Impulses: Activity 3: The Action Potential: Threshold Lab Report Pre-lab Quiz Results You scored 25% by answering 1 out of 4 questions correctly. 1. Axons are You correctly answered: d. long‚ thin structures that extend from a neuronal cell body. 2. Which of the following is easier? Your answer : b. intracellular recordings of the action potential Correct answer: a. extracellular recordings of the action potential 3. An action potential is usually initiated in
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Level 3 Business Research Exercise September 2012 Questions (can be answered in pairs) 1. What is another name for the "Name‚ term‚ design‚ symbol‚ or any other feature that identifies one seller’s good or service as distinct from those of other sellers” • Another name for for a feature that identifies a service is the ‘Brand’ 2. What is known as ‘the old lady of Threadneedle Street’? • The ‘Bank of England is referred to ‘the old lady of threadneedle street’ because because it has
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