...Name: Jennifer Broussard Exercise 2: Skeletal Muscle Physiology: Activity 2: The Effect of Stimulus Voltage on Skeletal Muscle Contraction Lab Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1. Skeletal muscle fibers are innervated (stimulated) by You correctly answered: c. motor neurons. 2. A single action potential propagating down a motor axon results in You correctly answered: 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 You correctly answered: c. the sarcoplasmic reticulum. 4. During the latent period for an isometric contraction You correctly answered: c. the cellular events involved in excitation-contraction coupling occur. 11/10/14 page 1 Experiment Results Predict Question: Predict Question: As the stimulus voltage is increased from 1.0 volt up to 10 volts, what will happen to the amount of active force generated with each stimulus? Your answer : c. The active force will first increase and then plateau at some maximal value as the stimulus voltage increases. Stop & Think Questions: What do you see in the active force display when the stimulus voltage is set to 0.0, and why does this observation make sense? You did not answer this question. Correct answer: a. 0.00 g; there was no activation of skeletal muscle fibers by this stimulus. What is the lowest stimulus voltage that induces active force in the skeletal muscle...
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...Name: Andrea Urbina Exercise 4: Endocrine System Physiology: Activity 1: Metabolism and Thyroid Hormone Lab Report Pre-lab Quiz Results You scored 100% by answering 6 out of 6 questions correctly. 1. Which of the following statements about metabolism is false? You correctly answered: d. All of the energy from metabolism is ultimately stored in the chemical bonds of ATP. 2. Thyroxine is You correctly answered: c. the most important hormone for maintaining the metabolic rate and body temperature. 3. Thyroid-stimulating hormone (TSH) is You correctly answered: b. produced in the pituitary gland. 4. An injection of TSH to an otherwise normal animal will cause which of the following? You correctly answered: d. goiter development 5. Thyrotropin-releasing hormone (TRH) is You correctly answered: a. secreted by the hypothalamus. 6. Which of the following statements is true? You correctly answered: b. The hypothalamus primarily secretes tropic hormones that stimulate the secretion of other hormones. 10/11/14 page 1 Experiment Results Predict Question: Predict Question 1: Make a prediction about the basal metabolic rate (BMR) of the remaining rats compared with the BMR of the normal rat you just measured. Your answer : c. The BMR of both remaining rats will be lower than the normal rat's BMR. Predict Question 2: What do you think will happen after you inject thyroxine into the three rats? Your answer : b. The thyroidectomized rat will become hyperthryoidic and develop a goiter...
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...Exercise 5: Cardiovascular Dynamics: Activity 5: Studying the Effect of Blood Vessel Radius on Pump Activity Lab Report Pre-lab Quiz Results You scored 80% by answering 4 out of 5 questions correctly. 1. The heart is resting during You correctly answered: c. ventricular diastole. 2. The right side of the heart pumps blood You correctly answered: d. to the lungs. 3. The layer of the blood vessel that is stimulated by the autonomic nervous system is You correctly answered: b. smooth muscle. 4. In the experiment, the pump simulates Your answer : d. the left atrium of the heart. Correct answer: b. the left ventricle of the heart. 5. If the right beaker simulates the flow of blood to the systemic circuit of the body, what do the right valve and flow tube represent? You correctly answered: d. aortic valve and aorta 06/14/13 page 1 Experiment Results Predict Question: Predict Question: If you increase the flow tube radius, what will happen to the pump rate to maintain constant pressure? Your answer : a. The pump rate will increase. Stop & Think Questions: When the piston of the pump reaches its lowest point, the volume remaining in the pump is the You correctly answered: b. end systolic volume. If you increase the right flow tube radius, what will happen to resistance and flow rate? You correctly answered: b. Flow rate will increase and resistance will decrease. If the left flow tube represents the pulmonary veins, what does the left source beaker represent? You correctly answered:...
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...Name: Amber Pitcher Exercise 1: Cell Transport Mechanisms and Permeability: Activity 1: Simulating Dialysis (Simple Diffusion) Lab Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1. The driving force for diffusion is You correctly answered: b. the kinetic energy of the molecules in motion. 2. In diffusion, molecules move You correctly answered: a. from high concentration to low concentration. 3. Which of the following dialysis membranes has the largest pore size? You correctly answered: d. 200 MWCO 4. Avogadro's number is a constant for the number of You correctly answered: b. molecules. 01/14/16 page 1 Experiment Results Predict Question: Predict Question 1: The molecular weight of urea is 60.07. Do you think urea will diffuse through the 20 MWCO membrane? Your answer : c. No, not at all. Predict Question 2: Recall that glucose is a monosaccharide, albumin is a protein with 607 amino acids, and the average molecular weight of a single amino acid is 135 g/mole. Which of the following will be able to diffuse through the 200 MWCO membrane? Your answer : b. both glucose and albumin Stop & Think Questions: The reason sodium chloride didn't diffuse left to right is that You correctly answered: c. the membrane pore size was too small. Glucose is a six-carbon sugar. Albumin is a protein with 607 amino acids. The average molecular weight of a single amino acid is 135 g/mole. There is no reason to run these solutes...
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...Name: Physio Lab 1B-7 Exercise 3: Neurophysiology of Nerve Impulses: Activity 1: The Resting Membrane Potential Lab Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1. What is the approximate concentration of K+ inside a typical cell (intracellular concentration)? You correctly answered: a. 150 mM 2. What is the approximate concentration of K+ outside a cell (extracellular concentration)? You correctly answered: b. 5 mM 3. What is the approximate concentration of Na+ inside a cell (intracellular concentration)? You correctly answered: b. 5 mM 4. What is the approximate concentration of Na+ outside a cell (extracellular concentration)? You correctly answered: a. 150 mM 09/09/14 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 : a. The resting membrane potential will become more negative. Stop & Think Questions: What is the polarity of the resting membrane potential (voltage)? You correctly answered: b. negative What does it mean that the voltage just inside the membrane is negative? You correctly answered: b. There are more negative charges than positive charges just inside the membrane. The membrane of most cells, including neurons, contains passive, open, K+ leak channels. Given the normal K+ concentrations and the resultant concentration gradient, which direction would K+ be expected to move...
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...Exercise 6: Cardiovascular Physiology: Activity 4: Examining the Effects of Chemical Modifiers on Heart Rate Lab Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1. The parasympathetic nervous system releases __________ to affect heart rate. You correctly answered: d. acetylcholine 2. A cholinergic drug that worked the same as acetylcholine would You correctly answered: c. be an agonist and decrease heart rate. 3. Norepinephrine affects the heart rate by You correctly answered: a. increasing the rate of depolarization and increasing the frequency of action potentials. 4. The __________ receptor binds norepinephrine and epinephrine. You correctly answered: b. ß-1 adrenergic 03/02/13 page 1 Experiment Results Predict Question: Predict Question 1: Pilocarpine is a cholinergic drug, an acetylcholine agonist. Predict the effect that pilocarpine will have on heart rate. Your answer : b. Pilocarpine will decrease heart rate. Predict Question 2: Atropine is another cholinergic drug, an acetylcholine antagonist. Predict the effect that atropine will have on heart rate. Your answer : a. Atropine will increase heart rate. Stop & Think Questions: Which of the following is true of epinephrine? You correctly answered: c. It increases the heart rate and mimics the sympathetic nervous system. The final chemical modifier we will look at is digitalis (also known as digoxin and digitoxin and derived from the foxglove plant). Individuals with weakened...
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...INSTRUCTOR GUIDE Human Anatomy & Physiology Laboratory Manual MAIN VERSION, Eighth Edition Update CAT VERSION, Ninth Edition Update FETAL PIG VERSION, Ninth Edition Update ELAINE N. MARIEB, R.N., Ph.D Holyoke Community College SUSAN T. BAXLEY, M.A. Troy University, Montgomery Campus NANCY G. KINCAID, Ph.D Troy University, Montgomery Campus PhysioEx™ Exercises authored by Peter Z. Zao, North Idaho College Timothy Stabler, Indiana University Northwest Lori Smith, American River College Greta Peterson, Middlesex Community College Andrew Lokuta, University of Wisconsin—Madison San Francisco • Boston • New York Cape Town • Hong Kong • London • Madrid • Mexico City Montreal • Munich • Paris • Singapore • Sydney • Tokyo • Toronto Editor-in-Chief: Serina Beauparlant Project Editor: Sabrina Larson PhysioEx Project Editor: Erik Fortier Editorial Assistant: Nicole Graziano Managing Editor: Wendy Earl Production Editor: Leslie Austin Composition: Cecelia G. Morales Cover Design: Riezebos Holzbaur Design Group Senior Manufacturing Buyer: Stacey Weinberger Marketing Manager: Gordon Lee Copyright © 2009 Pearson Education, Inc., publishing as Pearson Benjamin Cummings, 1301 Sansome St., San Francisco, CA 94111. All rights reserved. Manufactured in the United States of America. This publication is protected by Copyright and permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system, or transmission in any form or by any means...
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...experiment, you will explore the cell membrane’s role in allowing materials to enter or leave the cell. This is a vital function of the cell membrane. Using the Physio Ex CD 9.0, you will be able to conduct experiments showing the important cell membrane processes of diffusion, osmosis, filtration, and active transport. The simulations will allow you to alter conditions to show the effect of concentrations, pore size, pressure, carrier, and ATP have on movements of materials through the cell membrane. Purpose: To conduct experiments showing the effects of concentration, ions, and particle size of movement through the cell membrane. Materials: Lab manual, PhysioEx 9.0 Procedure: Cell Transport Mechanisms and Permeability in the lab manual. You will also need the PhysioEx 9.0 CD for this lab. Read over exercise overview and introduction. Complete the following questions from the exercise as you complete the simulation exercises. Go to Exercise 1 Cell Transport Mechanisms and Permeability on the CD. Follow the directions and complete each part. Answer questions or fill in tables as you proceed through the experiment. Place your answers in the spaces provided below. Submit your lab in Moodle. Activity 1. Simple Diffusion Chart 1 |Chart 1 Dialysis Results(average diffusion rate in mM/min | | |...
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...Physioex Activity 5 of Exercise 5 Exercise 5: Cardiovascular Dynamics: Activity 5: Studying the Effect of Blood Vessel Radius on Pump Activity Lab Report Pre-lab Quiz Results You scored 80% by answering 4 out of 5 questions correctly. 1. The heart is resting during You correctly answered: c. ventricular diastole. 2. The right side of the heart pumps blood You correctly answered: d. to the lungs. 3. The layer of the blood vessel that is stimulated by the autonomic nervous system is You correctly answered: b. smooth muscle. 4. In the experiment, the pump simulates Your answer : d. the left atrium of the heart. Correct answer: b. the left ventricle of the heart. 5. If the right beaker simulates the flow of blood to the systemic circuit of the body, what do the right valve and flow tube represent? You correctly answered: d. aortic valve and aorta 06/14/13 page 1 Experiment Results Predict Question: Predict Question: If you increase the flow tube radius, what will happen to the pump rate to maintain constant pressure? Your answer : a. The pump rate will increase. Stop & Think Questions: When the piston of the pump reaches its lowest point, the volume remaining in the pump is the You correctly answered: b. end systolic volume. If you increase the right flow tube radius, what will happen to resistance and flow rate? You correctly answered: b. Flow rate will increase and resistance will decrease. If the left flow tube represents the pulmonary veins, what does the left source...
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...Introduction: There are two main types of cells in the brain: Neurons and neuroglia (glial cells). The neuron is the functioning unit of the nervous system; its job is to transmit impulses. There are more than 10 billion neurons in the CNS and three-fourths of them are in the cerebral cortex. Neurons are categorized in two ways; by the direction of impulse flow and by the number of process emanating from the neuronal cell’s body. Afferent sensory neurons transmit impulses to the spinal cord or brain. Efferent motor neurons transmit impulses away from the brain or spinal cord. Interneuron transmits impulses from sensory neurons to motor neurons. Neurons will be one of three types, according to the number of processes that exist which are unipolar, bipolar and multipolar. Regardless of the category of neurons, they all have certain unique structures unique to neurons which are axons, dendrites, Nissl bodies, myelin, neurilemma, and nodes of Ranvier. The neurons are highly irritable, or the ability to react to stimuli and convert them into nerve impulses, and conductivity, the ability to transmit an impulse along the cell membrane. Impulse transmission initiated by a chemical, electrical, mechanical and thermal stimulus. When a neuron is adequately stimulated, an electrical impulse is generated and conducted along the length of its axon. This response is called the action potential or nerve impulse, is always the same, and regardless of the source or type of stimulus...
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