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. If the extracellular K+ increases then the concentration of intracellular K+ will decrease causing a decrease in the steepness of the concentration gradient and fewer K+ ions would be drawn out. 2. Explain why increasing extracellular K+ causes the membrane potential to change to a less negative
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Exercise 7: Respiratory System Mechanics: Activity 2: Comparative Spirometry Lab Report Pre-lab Quiz Results You scored 100% by answering 5 out of 5 questions correctly. 1. A normal resting tidal volume is expected to be around You correctly answered: d. 500 ml. 2. Which respiratory process is impaired the most by emphysema? You correctly answered: c. expiration 3. During an asthma attack You correctly answered: b. inspiration and expiration are impaired. 4. During moderate aerobic exercise‚ which
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ACTIVITY 1: THE RESTING MEMBRANE POTENTIAL 1. Explain why increasing extracellular K+ reduces the net diffusion of K+ out the neuron through the K+ leak channels? When the diffusion is greater on one side‚ the other side will slow down. 2. Explain why increasing extracellular K+ causes the membrane potential to change to a less negative value. How well did the results compare with your predictions? There are two potassium’s for every sodium so the increase of potassium will make it more
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Exercise 4: Endocrine System Physiology: Activity 2: Plasma Glucose‚ Insulin‚ and Diabetes Mellitus Lab Report Pre-lab Quiz Results You scored 80% by answering 4 out of 5 questions correctly. 1. Which of the following statements is false? Your answer : c. Insulin decreases plasma glucose levels. Correct answer: d. Insulin is a hormone secreted into the stomach to aid with starch digestion. 2. Which of the following statements is true? You correctly answered: d. All of these statements are true. 3
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Chapter 12 Genomes Study Guide By: Divya Prakriya Concept 12.1 : There are powerful methods for sequencing genomes and analyzing gene products. • The goal of sequencing genomes is to identify mutations in DNA and relate them to phenotypes (ie. Understanding genetics) • Human Genome Project- 13 year project‚ used chemically modified nucleotides • Next generation DNA sequencing- uses miniaturization techniques 1st developed for electronics industry‚ as well as principles of
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Exercise 2: Skeletal Muscle Physiology: Activity 2: The Effect of Stimulus Voltage on Skeletal Muscle Contraction Lab Report Pre-lab Quiz 1. Skeletal muscle fibers are innervated (stimulated) by c. motor neurons. 2. A single action potential propagating down a motor axon results in d. a single action potential and a single contractile event in the muscle fibers it innervates. 3. In resting skeletal muscle‚ calcium is stored in c. the sarcoplasmic reticulum. 4. During the latent period
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PhysioEx Lab Unit 1 Print Options This box will be automatically hidden when printing. ← Back to Set Page Alphabetize terms Flip terms and definitions 2hr OGTT level aboe 200mg/dl: confirms diabetes dx 2hr. OGTT level b/w 140-200mg/dl: impaired glucose tolerance absolute refractory period: period when cell membrane is totally insensitive to additional stimuli‚ regardless of the stimulus force applied. ACTH: hormone released by the anterior pituitary. stimulated by a hypothalamic hormone
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Exercise 12: Serological Testing: Activity 1: Using Direct Fluorescent Antibody Technique to Test for Chlamydia Lab Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1. Which of the following has an epitope? You correctly answered: b. an antigen 2. Chlamydia trachomatis is You correctly answered: c. a bacterium that reproduces inside its host cell. 3. The infectious form of Chlamydia that is spread from person to person is the You correctly answered:
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observed an acid/base imbalance during this run‚ how would you expect to renal system to compensate for this condition? The renal system would generate H+ and excrete HCO3- to counteract the respiratory system and lower the pH back to homeostasis. 9. How did the hyperventilation trace differ from the trace for the normal breathing? Did the tidal volumes change? The tidal volume and the rate increased drastically from normal breathing. 10. What might cause a person to hyperventilate? Anxiety‚
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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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