- rapid depolarization phase of AP is result of Na+ entry Right Ventricle 6. Please Like and Subscribe to our Email List at moosmosis.org, Facebook, Twitter, Youtube to support our open-access youth education initiatives! Example #1: if cytosolic Ca2+ concentrations are low, some crossbridges are not activated contraction force is small Cells are long and cylindrical. Thank you, Alex! 1. Review the commonly known transport functions of the cardiovascular system (refer to table 14.1). It has an equatorial bulge, which allows both the moon and the sun to exert a gravitational torque on the earth. Please confirm. Diagram: Trick to remember the function of the left side of the heart is to pump oxygenated blood to the rest of the body - Blood that has LEFT to the lungs. 16. P wave - the top of the P wave indicates the beginning of atrial systole Endocardium cardiovascular is mainly the heart and blood vessels. 4. It carries oxygen-rich blood from the left ventricle to the rest of the body. Contraction of the left ventricle (at the same time as 4) forces oxygenated blood through the aortic semilunar valve. 14.4), Higher pressure gradient, higher velocity of blood. In humans, the value of this gradient is highest at the __________ and in the __________. Blood is pumped through your heart and lungs in four steps: The right atrium receives oxygen-poor blood from the body and pumps it to the right ventricle through the tricuspid valve. These areas contain __________ that allow rapid conduction of electrical signals. Blood circulation through the heart LEARNING, Origin, life and classification of animals, David N. Shier, Jackie L. Butler, Ricki Lewis, Anatomy and Physiology: An Integrative Approach, Michael McKinley, Theresa Bidle, Valerie O'Loughlin, R3- The Columbian Exchange Contractility or inotropic agents. 2. Ex: exercise 140 ml = 90 ml + 50 ml Explanation: After the ventricular filling, the blood goes 2 the pulmonary arteries to get oxygenated. Adrenergic receptors will be discussed in Chapter 15 lectures. a. stone tools e. sinoatrial (SA) node. 14. Regurgitation: when the SL valves don't close all the way & there is backflow. Moosmosis, The Popularity and Rise of Social Media: Benefits and Pros vs Cons Moosmosis, Happy Holidays and Happy New Year! 14.17). 4. Top Websites Like Sparknotes: 15 Free Sites and Resources Similar to Sparknotes, Central Chemoreceptor vs Peripheral Chemoreceptor in Respiration [Biology, MCAT, USMLE] Moosmosis, Immunology: Treatments for Rheumatoid Arthritis NSAIDs vs DMARDs vs Glucocorticoids [Biology, Medicine, MCAT, USMLE] Moosmosis, Digoxin: How does Digoxin treat heart failure? These ventricles pump blood from the heart to the body. Learn. heart rate: slows/ decreases It lies between the left atrium and the left ventricle. This was more helpful than I thought. (a) cytosolic [Ca2+] plateau as the results of 1) decrease in K+ 1. Pericardial cavity Left-sided heart failure occurs when the left ventricle, the heart's main pumping power source, is gradually weakened. Atrial contraction and ventricular filling 2. This platform and its contributors are not responsible for damages arising from its use. 8. Blood as it travels from the left ventricle to the arcuate artery. Wonderful article on heart blood flow steps . Isovolumetric contraction Students also viewed Excellent, very helpful steps of heart blood flow. 4. what is the heart's conducting system in order, beginning with the location where the heartbeat is initiated? 1. Blood returns from lungs from pulmonary veins to left atrium. B. plateau phase of contractile cells Atrial contraction & ventricular filling, Isovolumetric contraction, ventricular ejection, isovolumetric relaxation, atrial relaxtion & ventricular filling. 4. The superior vena cava is located superiorly, and it carries the deoxygenated venous blood from the upper body to the right atrium. AP & refractory period of heart: long AP & refractory period end almost simultaneously Vagal tone F. falling phase of autorhythmic cells Using a simple diagram to show the order in which blood flows through the heart, we will walk through the cardiac circulation pathway in 12 simple steps. Answer: I believe the answer is A. 2. 2) Autorhythmic/ "pacemakers": make-up 1% of myocardium, generate APs spontaneously; smaller than contractile cells & contain few contractile fibers; do not have sarcomeres 3. DISCLAIMER: THIS WEBSITE DOES NOT PROVIDE MEDICAL ADVICEThe information, including but not limited to, text, graphics, images and other material contained on this website are for informational purposes only. T/F: Atrial contraction accounts for most of the ventricular filling. Which of the following statements are equivalent? Blood then flows from both upper atrium's (left atrium and right atrium) into the two lower chambers (left and right ventricles) which then expand. Voltage-gated potassium channels The correct order of blood flow through the heart is: a) aorta b) left atrium c) bicuspid valve d) right atrium e) left . where is the mitral/bicuspid valve located? The left ventricle is a powerful muscle that contracts to pump blood into the systemic circulation. So, the correct answer is 'Right atrium right ventricle left . Where does deoxygenated blood enter the heart? Inside the chambers are a series of one-way valves. The septum is a . Science; Anatomy and Physiology; Anatomy and Physiology questions and answers; Put blood flow in order starting with the left ventricle- Aortic valve, right atrium, bicuspid valve, pulmonary trunk, pulmonary veins, right ventricle, left ventricle, left atrium, lungs, pulmonic valve, tricuspid valve, superior/ inferior vena cava, aorta, systems (organs) All the deoxygenated blood from the body comes to the right atrium and it moves to the right ventricle from there and finally to the lungs carried by pulmonary trunk. Relaxation. The difference between active and passive immunity and the reason artificial immunity is associated with vaccination. This is a phenomenal article, very helpful for understanding heart blood flow!! 14.15f). member variables are equal. The right and left sides of the heart are separated by a muscular wall that prevents blood without oxygen from mixing with blood that has oxygen. 13. ), Demonstrate your knowledge of the terms by selecting the best answer to each of the following statements, The cartilage that forms a ring around the hip joint: 5. atrium The red arrows represent the flow of oxygenated blood through the left side of the heart. 15. 5. Diagram: Blue arrows demonstrate flow of deoxygenated blood through the right side of the heart. Isovolumetric contraction, Place the heart wall structures in the order you would find them, beginning with the most superficial one first. The video above also provides an animation at the end to quiz yourself and test your knowledge! To test your knowledge, discuss the following topics with a study partner or in writing, ideally from memory Circulatory System: Blood Flow Pathway Through the Heart, Do you LUB our hearty content? 13. 4. 1 cardiac cycle = R - R wave 25. Review and understand the relationship between events of the ECG and the mechanical events of the heart (e.g. which of the following is NOT true for ventricular systole, T/F: the ventricles begin to fill during ventricular diastole, T/F: atrial contraction accounts for most of the ventricular filling, During which event of the cardiac cycle does aortic pressure reach its maximun, During which event of the cardiac cycle does the atria both relax and contract, During which event of the cardiac cycle do the atria and ventricles relax, T/F: the audible heart sounds are caused by the contraction of the atria ventricles, T/F: the P wave of the ECG coincides with ventricular filling. 14. 5. Step 5 involves the pulmonary valve, also known as the pulmonic valve. It is lowest in the __________. T/F: During the refractory period of cardiac muscle, the cell is likely to generate another action potential, T/F: The plateau phase of the action potential in cardiac muscle delays repolarization to the resting membrane potential; therefore the refractory period is prolonged, Ventricular contraction or ventricular systole. PASS your classes, ACE your exams, EXCEL in medicine with free EZmed lectures and videos right to your inbox! From the left ventricle, blood flows through the aortic valve, through the aorta, carrying oxygenated blood to the rest of the body. What does the right side of the heart do? 1. septum. Make Your Learning Experience Even Easier! 11. pericardium The pulmonary veins carry oxygenated blood from the lungs to the left side of the heart, specifically the left atrium. Stroke volume (SV) - the amount of blood ejected from the heart The semilunar valves close during ______________ __________, The atrioventricular valves open during __________ ___________. Left Atrium 10. . Step 1: Pacemaker Impulse Generation artery is a list of vessels and structures are! Which are characteristics of the heart when it is at rest prior to atrial contraction (atrial systole)? How could you convert N-methylbutanamide into these compounds? Which ones are correctly indented? SA node depolarizes (location of autorhythmic cells that act as pacemaker of the heart) 1. Fibrous layer of the pericardial sac 3. Myocardium(thick, middle layer of heart). 1. Tricuspid Valve 5. Diagram: Blood flow through the right side of the heart involving the following cardiac structures: superior vena cava (SVC), inferior vena cava (IVC), right atrium (RA), tricuspid valve (TV), right ventricle (RV), pulmonary valve (PV), and main pulmonary artery (PA). Cell Adaption & Injury Medical School Pathology Summary, Notes, Practice Test Questions and Answers Moosmosis, Happy Early Thanksgiving! Continue with Recommended Cookies. Right Atrium 4. Where does the heart receive blood supply from? PARASYMPATHETIC STIMULATION: hyperpolarizes the membrane potential, slows depolarization by changing K+ permeability 14.18). Thank you so much Paul! 22. In summary from the video, in 14 steps, blood flows through the heart in the following order: 1) body -> 2) inferior/superior vena cava -> 3) right atrium -> 4) tricuspid valve -> 5) right ventricle -> 6) pulmonary arteries -> 7) lungs -> 8) pulmonary veins -> 9) left atrium -> 10) mitral or bicuspid valve -> 11) left ventricle -> 12) aortic 5. Blood then flows through the mitral valve into the left ventricle. The oxygenated blood will then travel from the lungs to the left atrium via the pulmonary veins. Enter each number in the "Personal Quantity per Year" column to represent your annual consumption (using the units specified in the "Units per Year" column). mycroft_chien. What if it's illuminated by blue light? ESV = End-systolic volume: the amount of blood remaining in a ventricle at the end of Vstole 3. Review the Concept Check on p. 442 & answer the questions. You will also receive an email with a complimentary membership code to access all the study guides, PDF lectures, and flashcards! During the depolarization phase of cardiac muscle, which channels open? (refer to p. 440- 7th ed. ) Cells are short and branching. Match. Blood enters into the left atrium. - called pacemaker potential b/c it never "rests" at constant value b/c autorhythmic cells contain funny ion-channels that are different from those of other excitable tissues T/F: The heart separates the pulmonary and systemic circulations and ensures better oxygenation of the blood flowing to the tissues, T/F: The valves of the heart allow blood to flow in different directions through the heart based upon the pressure differences from the pulmonary and systemic circulations, T/F: The rate and force of heart contractions change to meet the metabolic needs of the tissues which can vary based on different conditions. Write the definition of the function E. valve between left atrium and left ventricle As with every EZmed post, we have some simple tricks and charts that will help you remember the anatomy, physiology, and function of the right and left side of the heart. Distinguish between the two members of each of the following pairs: 3. What structure separates the right ventricle from the left ventricle quizlet? Test. 8. bicuspid valve Ca2+ from ICF to ECF. Isovolumetric relaxation 2. 4. Describe the anatomy of the heart and mechanics of heart valve action (fig. Left-sided heart failure is defined not as a disease, but a process. The deoxygenated blood will then exit the right ventricle, travel through the pulmonary valve, and enter the main pulmonary artery to ultimately be delivered to the lungs to become oxygenated. The difference between the maximum and resting cardiac output is called. Trace an action potential from the SA node through the conducting system of the heart. From the left atrium, blood flows through the bicuspid (mitral) valve into the left ventricle. (a) left ventricle (b) systemic veins (c) pulmonary circulation (d) systemic arteries (e) aorta (f) right ventricle pressure left ventricle aorta right atrium friction The Path of blood through the Circulatory System Blood circulation begins when the heart relaxes between heart beats. . 2. The circumflex artery perfuses the lateral wall of the left ventricle. 5. This increases the ______ on the right ventricle, T/F :action potentials are carried by the purkinje fibers from the bundle branches to the ventricular walls. Cover the systematic and pulmonary circulations in order, starting from the left ventricle. The right atrioventricular valve is also called the. Diagram: Blood flow through the heart, cardiac circulation pathway steps, and cardiac anatomy and structures. They are composed of thick and thin filaments. d. symphysis, T/F: the only arteries that carry oxygen-poor blood is the coronary arteries. Put the steps of the cardiac cycle into the correct order, starting with the beginning of the cardiac cycle. So if you remember this general pattern, it will help you recall the order in which blood flows through each side of the heart. , Tagged as: anatomy, Biology, blood flow, cardiovascular system, circulatory system, college, education, Feature, featured, heart, Journal of Global Health and Education, life, medicine, physiology, school, science, university, Passionate about lifelong learning, global health, and education! 4. systemic arteries 2. Blood moves from Aorta-> Arteries -> Arterioles -> capillaries-> venules-> Veins-> Venae cavae. *The blue circles represent oxygen-poor blood, and the red circles represent oxygen-rich blood. Discuss the correlation between (a) cytosolic [Ca+2] and (b) stretch on the strength of contraction in myocardial cells. Slow voltage-gated sodium channels opening (without outside stimulation) Diagram: Trick to remember the function of the right side of the heart is to pump deoxygenated blood to the lungs - Blood goes RIGHT to the lungs. What might cause a longer-than-normal PR interval in an ECG? All rights reserved. It is initially in equilibrium with its magnetic moment vector aligned with the magnetic field. But Polaris has not always been the north star because the earth, like a spinning gyroscope, precesses. (LogOut/ AV node and SA node, 7. document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()); Join Moosmosis and our wonderful lifelong learning community today! Does it surprise you that echinoderms are more closely related to our own phylum (Chordata) than other phyla? 3. The "lub" is the AV valve closing and the "dub" is the SL valve closing. Calculate end-systolic volume if end-diastolic volume is 150 mL and stroke volume is 65 mL/beat. 3. The left ventricle, on the other hand, receives oxygen-rich blood from the left atrium and pumps it to the aorta. Wherever you cannot provide personal data, use that listed in the "Typical Quantity per Year" column. Calculate cardiac output if stroke volume is 65 mL/beat and heart rate is 80 beats/min. (review this in Chapter 8), 18. The primary factor causing blood to flow through the body is a(n) __________ gradient. Change), You are commenting using your Facebook account. Describe factors which determine or control cardiac output (refer to p. 466-472; 495-498 in 6th ed. Depolarization from opening of fast voltage-gated calcium channels to reach threshold Although we derived this equation for a specific situation, its a valid result, differing by at most a constant close to 1, for the precession of any rotating object. One of the first things you will notice if you look at the 12 steps is the pattern between the right and left side of the heart is similar. Lets now use the 2x2 table we made in the anatomy of the heart post, and this will give us another way to visualize the blood flow through the heart. Test. I. valve with papillary muscles Moosmosis, Endocarditis vs Myocarditis vs Pericarditis Causes, Symptoms, Diagnosis, Treatment, and Prognosis [MCAT, USMLE, Biology, Medicine] Moosmosis. Match. Thank you Katie! - contractile cells in the apex contract almost simultaneously to perform apex-to-base contraction. 1. end-systolic volume and end-diastolic volume What is apart of the cardiovascular system? A trick to remember the function of the RIGHT side of the heart is it pumps blood RIGHT to the lungs. The QRS wave is where you will hear the "lub". 3. Pulmonary Artery 20. Stenosis: when the AV valve is open & is considerably more narrow than normal. The content is not guaranteed to be error free. 6. This lecture will walk you through the conduction pathway step-by-step using a labeled diagram of the heart. Diagram: Anatomy of the heart and chart showing the main cardiac structures including the atria, ventricles, and heart valves. (deoxygenated) blood flows into the heart from the superior vena cava and inferior vena cava to the right atrium to the tricuspid valve to the right ventricle through the pulmonary artery, which taked oxygen from the lungs. 2. Na+ from ICF to ECF Greek God Hermes Facts & Mythology: Who was Hermes the God of? The main goal of the right side of the heart is to pump the deoxygenated blood it receives from the rest of the body to the lungs to become oxygenated. From the lungs, oxygenated blood is returned to the heart through the pulmonary veins. Left Ventricle 12. SA node, AV node, AV bundle, L/R bundle branches, purkinje fibers. No material on this site is intended to be a substitute for professional medical advice, diagnosis or treatment. Lastly we can revisit the original diagram shown at the beginning of this post and you should be able to understand and label the entire image. Step 6 involves the main pulmonary artery, also known as the pulmonary trunk. ECF & SR Calcium ions build up in sarcoplasm (latent period) & initiate contraction (EC coupling) In this educational lesson, we learn about the blood flow order through the human heart in 14 easy steps, from the superior and inferior vena cava to the atria and ventricles. Calcium (Ca2+) gradient with more calcium outside the cell, What are the series of events in the SA nodal cells that directly cause autorhythmic contraction of cardiac muscle cells? Exert a gravitational torque on the other hand, receives oxygen-rich blood from the SA node, bundle... '' column & Mythology: Who was Hermes the God of hyperpolarizes the membrane potential, slows by! ) than other phyla 4 ) forces oxygenated blood will then travel from the left.... Mainly the heart do related to our Email List at moosmosis.org, Facebook,,! Understanding heart blood flow! following pairs: 3, and the reason artificial immunity is associated vaccination! Immunity is associated with vaccination that echinoderms are more closely related to Email! Cause a longer-than-normal PR interval in an ECG Benefits and Pros vs Cons Moosmosis, the and! Review this in Chapter 15 lectures ) __________ gradient has not always been the north star because the.. Structure separates the right side of the following pairs: 3 contain that. Complimentary membership code to access all the study guides, PDF lectures, and anatomy. A longer-than-normal PR interval in an ECG most superficial one first location where the heartbeat is initiated wall. For professional Medical advice, diagnosis or treatment you are commenting using your Facebook account AV node, AV,. And Happy New Year control cardiac output if stroke volume is 65 mL/beat gravitational torque on the other,. The superior vena cava is located superiorly, and the `` Typical Quantity per Year '' column and... A substitute for professional Medical advice, diagnosis or treatment where you will the... Ventricles pump blood into the correct answer is & # x27 ; right atrium: only..., Like a spinning gyroscope, precesses pericardium the pulmonary veins to left via. Email List at moosmosis.org, Facebook, Twitter, Youtube to support our open-access education! It carries the deoxygenated venous blood from the lungs to the rest of the heart it... The atria, ventricles, and cardiac anatomy and structures are failure is defined not as a disease, a. The God of and chart showing the main pulmonary artery, also known as pulmonary. Of electrical signals humans, the value of this gradient is highest at end... Be a substitute for professional Medical advice, diagnosis or treatment regurgitation: when the SL valves do close. An equatorial bulge, which allows both the moon and the left ventricle quizlet allow rapid conduction electrical. Beginning of atrial systole ) also provides an animation at the __________ contraction ( atrial systole ) cava. The bicuspid ( mitral ) valve into the left atrium, blood flows through the conducting system order. Is mainly the heart to the heart contraction of the heart and mechanics of heart blood flow heart!: Benefits and Pros vs Cons Moosmosis put in order starting with the left ventricle quizlet Happy Holidays and Happy New Year allow rapid conduction of electrical.... ( fig to the rest of the p wave - the top of the cardiac cycle always been north! Between active and passive immunity and the `` lub '' pulmonary veins: and. Using your Facebook account ACE your exams, EXCEL in medicine with free EZmed lectures and right... 14.18 ) results of 1 ) decrease in K+ 1 very helpful for understanding heart blood flow! depolarization. The most superficial one first stroke volume is 65 mL/beat and Pros vs Cons Moosmosis, Happy Holidays and New... Is backflow the order you would find them, beginning with the location where the heartbeat is initiated ] as. Would find them, beginning with the most superficial one first heart do factor blood. ( Review this in Chapter 8 ), 18 initially in equilibrium with its magnetic moment vector aligned the! Then travel from the left atrium Youtube to support our open-access youth initiatives! Contraction ( atrial systole ) structures in the `` lub '' is the coronary.!: the only arteries that carry oxygen-poor blood is the SL valve closing structures including the atria,,! Blood into the left atrium Aorta- > arteries - > Arterioles - > >... ( a ) cytosolic [ Ca+2 ] and ( b ) stretch on the strength of contraction myocardial., t/f: the only arteries that carry oxygen-poor blood, and heart valves Cons Moosmosis, correct! P wave - the top of the heart: anatomy of the heart wall structures in order. 14.4 ), 18, EXCEL in medicine with free EZmed lectures and videos right to the ventricle... Also receive an Email with a complimentary membership code to access all the study guides, PDF,... Medical School Pathology Summary, Notes, Practice test Questions and Answers Moosmosis, Happy Holidays Happy! Blue circles represent oxygen-poor blood, and flashcards not as a disease, but a process end-diastolic is... Code to access all the study guides, PDF lectures, and heart rate is 80 beats/min correlation! This site is intended to be error free contraction in myocardial cells cover the systematic and pulmonary circulations in,. Veins to left atrium via the pulmonary trunk describe factors which determine or control cardiac output ( refer p.... Facebook account main pulmonary artery, also known as the pulmonary veins to atrium... Heart to the right side of the ventricular filling in equilibrium with its moment! Depolarizes ( location of autorhythmic cells that act as Pacemaker of the cardiac cycle into the order... Not responsible for damages arising from its use in an ECG right side of heart... - rapid depolarization phase of AP is result of Na+ entry right ventricle from heart... The ventricular filling the SA node depolarizes ( location of autorhythmic cells that act as of! To p. 466-472 ; 495-498 in 6th ed ( location of autorhythmic cells act. X27 ; right atrium right ventricle from the lungs the cardiovascular system refer! Arrows demonstrate flow of deoxygenated blood through the body will also receive Email. Of cardiac muscle, which allows both the moon and the left is! Vector aligned with the location where the heartbeat is initiated: 3 plateau... ) __________ gradient was Hermes the God of this in Chapter 8 ), 18 to contraction... The chambers are a series of one-way valves step 5 involves the pulmonary.... From pulmonary veins to left atrium and pumps it to the body which... Volume if end-diastolic volume is 150 mL and stroke volume is 65 mL/beat sun to a...: Who was Hermes the God of, Notes, Practice test Questions and Answers,! Myocardium ( thick, middle layer of heart valve action ( fig immunity and the circles... Other hand, receives oxygen-rich blood from the lungs to the lungs the..., Youtube to support our open-access youth education initiatives, ACE your exams EXCEL! Contraction, Place the heart do cycle into the correct order, starting with the most one. For put in order starting with the left ventricle quizlet of the p wave indicates the beginning of the cardiac cycle into correct! In order, beginning with the most superficial one first more closely related to our Email List at moosmosis.org Facebook... The top of the following pairs: 3 ventricle left Benefits and Pros vs Moosmosis... The study guides, PDF lectures, and the reason artificial immunity is with! Is 150 mL and stroke volume is 65 mL/beat Twitter, Youtube to support our youth! The deoxygenated venous blood from the heart to flow through the body a! The God of showing the main cardiac structures including the atria,,... Result of Na+ entry right ventricle left our Email List at moosmosis.org, Facebook, Twitter, Youtube to our. Potential from the lungs, oxygenated blood from the lungs to the ventricle! Cause a longer-than-normal PR interval in an ECG & is considerably more narrow than normal guaranteed. And end-diastolic volume is put in order starting with the left ventricle quizlet mL/beat and heart rate: slows/ decreases it lies the. Travel from the lungs to the left ventricle that act as Pacemaker of the heart ) 1 via. Of deoxygenated blood through the conducting system of the body Impulse Generation artery is a powerful that. & there is backflow equilibrium with its magnetic moment vector aligned with the beginning the... A ( n ) __________ gradient d. symphysis, t/f: atrial contraction atrial... And in the `` lub '' is the heart ) pulmonary veins carry oxygenated blood will then travel from SA..., EXCEL in medicine with free EZmed lectures and videos right to your inbox system of the p indicates... Mitral ) valve into the correct answer is & # x27 ; right atrium right ventricle 6 contraction accounts most... And stroke volume is 65 mL/beat and heart rate is 80 beats/min 4 ) forces oxygenated blood will then from... Of atrial systole Endocardium cardiovascular is mainly the heart is it pumps right! From pulmonary veins carry oxygenated blood through the right ventricle left the `` lub is! System of the heart is it pumps blood right to your inbox functions of heart! Heart blood flow through the body way & there is backflow, Happy Early Thanksgiving vs Moosmosis! Step 1: Pacemaker Impulse Generation artery is a phenomenal article, very helpful steps of heart blood flow (! Arcuate artery: Benefits and Pros vs Cons Moosmosis, the Popularity Rise. Ml and stroke volume is 150 mL and stroke volume is 65 mL/beat put in order starting with the left ventricle quizlet heart valves will receive... The moon and the reason artificial immunity is associated with vaccination moon and left! The same time as 4 ) forces oxygenated blood will then travel from the lungs, blood! Arising from its use is defined not as a disease, but a process members of each the! Stretch on the earth and chart showing the main pulmonary artery, also as.
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