{"id":23999,"date":"2024-04-15T06:41:05","date_gmt":"2024-04-15T06:41:05","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=23999"},"modified":"2024-04-15T06:41:05","modified_gmt":"2024-04-15T06:41:05","slug":"the-sound-lub-dub-lub-dub-is-produced-by-a-liver-b-kidney-c-heart-d-lung","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/the-sound-lub-dub-lub-dub-is-produced-by-a-liver-b-kidney-c-heart-d-lung\/","title":{"rendered":"The sound lub-dub lub-dub is produced by A. Liver B. Kidney C. Heart D. Lung"},"content":{"rendered":"<p>\r\n    <!-- Check if it's an AMP page -->\r\n            <!-- Non-AMP version -->\r\n        <div class=\"mcq-container\" data-quiz-id=\"quizState_6a9d03cb3ecc2\">\r\n                                            <div class=\"option\" data-option-key=\"option1\" data-is-correct=\"false\">\r\n                    Liver                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option2\" data-is-correct=\"false\">\r\n                    Kidney                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option3\" data-is-correct=\"true\">\r\n                    Heart                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option4\" data-is-correct=\"false\">\r\n                    Lung                <\/div>\r\n                            \r\n            <!-- Feedback messages for non-AMP -->\r\n            <div class=\"feedback\" data-feedback=\"wrong\">Answer is Right!<\/div>\r\n            <div class=\"feedback\" data-feedback=\"right\">Answer is Wrong!<\/div>\r\n        <\/div>\r\n\r\n        <script>\r\n        document.addEventListener('DOMContentLoaded', function () {\r\n            var containers = document.querySelectorAll('.mcq-container');\r\n\r\n            containers.forEach(function(container) {\r\n                var options = container.querySelectorAll('.option');\r\n                var feedbackSelect = container.querySelector('[data-feedback=\"select\"]');\r\n                var feedbackWrong = container.querySelector('[data-feedback=\"wrong\"]');\r\n                var feedbackRight = container.querySelector('[data-feedback=\"right\"]');\r\n\r\n                options.forEach(function(option) {\r\n                    option.addEventListener('click', function() {\r\n                        var selectedOption = option.getAttribute('data-option-key');\r\n                        var isCorrect = option.getAttribute('data-is-correct') === 'true';\r\n\r\n                        \/\/ Remove previous selections\r\n                        options.forEach(function(opt) {\r\n                            opt.classList.remove('correct', 'incorrect');\r\n                        });\r\n\r\n                        \/\/ Add the correct\/incorrect class\r\n                        if (isCorrect) {\r\n                            option.classList.add('correct');\r\n                            feedbackRight.hidden = false;\r\n                            feedbackWrong.hidden = true;\r\n                        } else {\r\n                            option.classList.add('incorrect');\r\n                            feedbackRight.hidden = true;\r\n                            feedbackWrong.hidden = false;\r\n                        }\r\n\r\n                        \/\/ Hide select feedback\r\n                        feedbackSelect.hidden = true;\r\n                    });\r\n                });\r\n            });\r\n        });\r\n        <\/script>\r\n    \r\n    <!--more--><\/p>\n<p>The correct answer is C. Heart.<\/p>\n<p>The heart is a muscular organ that pumps blood throughout the body. It is located in the chest, between the lungs. The heart is divided into four chambers: two <div class=\"telegram-channel-container\">\r\n        <a href=\"https:\/\/t.me\/pscnotes2025\" target=\"_blank\" class=\"telegram-channel-button\">\r\n            <span class=\"telegram-icon\">\r\n                <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 496 512\">\r\n                    <path fill=\"white\" d=\"M248,8C111,8,0,119,0,256s111,248,248,248s248-111,248-248S385,8,248,8z M362,177L320,367c-3,14-10,18-20,14l-56-41l-27,26 c-3,3-5,5-10,5l4-63L323,196c5-5-1-7-8-3l-98,62l-42-13c-9-3-10-9,2-14l162-63C351,160,365,164,362,177z\"\/>\r\n                <\/svg>\r\n            <\/span>\r\n            Join Our Telegram Channel\r\n        <\/a>\r\n    <\/div> atria and two ventricles. The atria are the upper chambers, and the ventricles are the lower chambers.<\/p>\n<p>The heart beats in a regular rhythm. The sound of the heartbeat is caused by the closing of the valves between the chambers of the heart. The first sound, &#8220;lub,&#8221; is caused by the closing of the mitral and tricuspid valves. The second sound, &#8220;dub,&#8221; is caused by the closing of the aortic and pulmonary valves.<\/p>\n<p>The heart is a vital organ, and its function is essential for life. If the heart stops beating, death will occur within minutes.<\/p>\n<p>The liver is a large organ that is located in the upper right abdomen. It is responsible for many important functions, including:<\/p>\n<ul>\n<li>Metabolism<\/li>\n<li>Detoxification<\/li>\n<li>Blood clotting<\/li>\n<li>Bile production<\/li>\n<\/ul>\n<p>The kidney is a bean-shaped organ that is located in <div class=\"youtube-subscribe-container\">\r\n        <a href=\"https:\/\/www.youtube.com\/channel\/UCNHT8lW-JmLC68rjBfZhdkg?sub_confirmation=1\" target=\"_blank\" class=\"youtube-subscribe-button\">\r\n            <span class=\"youtube-icon\">\r\n                <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 576 512\">\r\n                    <path d=\"M549.7 124.1c-6.3-23.7-24.8-42.3-48.3-48.6C458.8 64 288 64 288 64S117.2 64 74.6 75.5c-23.5 6.3-42 24.9-48.3 48.6-11.4 42.9-11.4 132.3-11.4 132.3s0 89.4 11.4 132.3c6.3 23.7 24.8 41.5 48.3 47.8C117.2 448 288 448 288 448s170.8 0 213.4-11.5c23.5-6.3 42-24.2 48.3-47.8 11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z\"\/>\r\n                <\/svg>\r\n            <\/span>\r\n            Subscribe on YouTube\r\n        <\/a>\r\n    <\/div> the lower back. It is responsible for many important functions, including:<\/p>\n<ul>\n<li>Urine production<\/li>\n<li>Blood pressure regulation<\/li>\n<li>Red blood cell production<\/li>\n<li>Vitamin D production<\/li>\n<\/ul>\n<p>The lung is a spongy organ that is located in the chest. It is responsible for breathing. The lungs take in oxygen from the air and deliver it to the blood. The blood then carries the oxygen to all parts of the body.<\/p>\n<p>The liver, kidney, and lung are all important organs, but they do not produce the sound &#8220;lub-dub.&#8221; The sound &#8220;lub-dub&#8221; is produced by the heart.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Subscribe on YouTube<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[15],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.2 (Yoast SEO v23.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>The sound lub-dub lub-dub is produced by A. Liver B. Kidney C. Heart D. 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