{"id":3897,"date":"2023-01-09T10:46:12","date_gmt":"2023-01-09T10:46:12","guid":{"rendered":"https:\/\/7thclass.deltapublications.in\/?page_id=3897"},"modified":"2025-11-06T05:13:57","modified_gmt":"2025-11-06T05:13:57","slug":"s-11-a-circulatory-system","status":"publish","type":"page","link":"https:\/\/7thclass.deltapublications.in\/index.php\/s-11-a-circulatory-system\/","title":{"rendered":"S-11.a Circulatory System"},"content":{"rendered":"\n<h2 class=\"wp-block-heading has-text-align-center has-text-color\" style=\"color:#00056d;text-transform:uppercase\"><strong>Circulatory System<\/strong><\/h2>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div style=\"position: relative; width: 100%; height: 0; padding-top: 56.2500%;\n padding-bottom: 0; box-shadow: 0 2px 8px 0 rgba(63,69,81,0.16); margin-top: 1.6em; margin-bottom: 0.9em; overflow: hidden;\n border-radius: 8px; will-change: transform;\">\n  <iframe loading=\"lazy\" style=\"position: absolute; width: 100%; height: 100%; top: 0; left: 0; border: none; padding: 0;margin: 0;\"\n    src=\"https:\/\/www.canva.com\/design\/DAGArKyL5Ig\/7WcNdleG80rhTEu0Db_NZQ\/watch?embed\" allowfullscreen=\"allowfullscreen\" allow=\"fullscreen\">\n  <\/iframe>\n<\/div>\n<a href=\"https:&#x2F;&#x2F;www.canva.com&#x2F;design&#x2F;DAGArKyL5Ig&#x2F;7WcNdleG80rhTEu0Db_NZQ&#x2F;watch?utm_content=DAGArKyL5Ig&amp;utm_campaign=designshare&amp;utm_medium=embeds&amp;utm_source=link\" target=\"_blank\" rel=\"noopener\">circulatory system<\/a> by Delta publications\n<\/div>\n<\/div>\n\n\n\n<p class=\"has-text-color has-huge-font-size\" style=\"color:#74008b\"><strong>Key Notes :<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-11d81e5e85a0b14c3dbdeb33f34db0de\" style=\"color:#000060\"><strong>What is the Circulatory System?<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>The circulatory system is a network of blood vessels and organs that transport blood, nutrients, gases (like oxygen and carbon dioxide), and waste products throughout the body.<\/li>\n\n\n\n<li>It consists of the <strong>heart<\/strong>, <strong>blood vessels<\/strong>, and <strong>blood<\/strong>.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-527049d729f1a8497845bc6be68413e9\" style=\"color:#000060\"><strong>Main Parts of the Circulatory System:<\/strong><\/h3>\n\n\n\n<p class=\"has-large-font-size\"><strong>Heart<\/strong>: A muscular organ that pumps blood throughout the body.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Left side<\/strong>: Pumps oxygenated blood to the body.<\/li>\n\n\n\n<li><strong>Right side<\/strong>: Pumps deoxygenated blood to the lungs.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-large-font-size\"><strong>Blood Vessels<\/strong>: Tubes that carry blood throughout the body.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Arteries<\/strong>: Carry oxygenated blood away from the heart to the body (except the pulmonary artery).<\/li>\n\n\n\n<li><strong>Veins<\/strong>: Carry deoxygenated blood back to the heart (except the pulmonary vein).<\/li>\n\n\n\n<li><strong>Capillaries<\/strong>: Tiny blood vessels that connect arteries and veins, allowing exchange of gases, nutrients, and waste.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-large-font-size\"><strong>Blood<\/strong>: Fluid that carries nutrients, oxygen, and waste products.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Red Blood Cells (RBCs)<\/strong>: Carry oxygen from the lungs to the body and return carbon dioxide from the body to the lungs.<\/li>\n\n\n\n<li><strong>White Blood Cells (WBCs)<\/strong>: Help fight infections and diseases.<\/li>\n\n\n\n<li><strong>Platelets<\/strong>: Help in blood clotting to prevent excessive bleeding.<\/li>\n\n\n\n<li><strong>Plasma<\/strong>: The liquid component of blood, transporting nutrients, hormones, and waste products.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-908a3ef0b56e7df6070e53cb0d747cb8\" style=\"color:#000060\"><strong>Function of the Circulatory System:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Transportation<\/strong>: Delivers oxygen and nutrients to cells and removes waste products like carbon dioxide and urea.<\/li>\n\n\n\n<li><strong>Temperature Regulation<\/strong>: Helps maintain body temperature by distributing heat throughout the body.<\/li>\n\n\n\n<li><strong>Protection<\/strong>: Blood carries immune cells that protect the body from infections and diseases.<\/li>\n\n\n\n<li><strong>Hormone Transport<\/strong>: Blood carries hormones from glands to target organs for regulation of bodily functions.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-7dc9ad3e48c914af63de4e728007009f\" style=\"color:#000060\"><strong>How the Heart Works:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>The heart has four chambers: two atria (upper chambers) and two ventricles (lower chambers).<\/li>\n\n\n\n<li><strong>Deoxygenated blood<\/strong> flows from the body into the right atrium, through the right ventricle, and is pumped to the lungs for oxygenation.<\/li>\n\n\n\n<li><strong>Oxygenated blood<\/strong> returns from the lungs to the left atrium, flows into the left ventricle, and is pumped to the rest of the body.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-eb866a6bb32fc8561ea9946da30602a7\" style=\"color:#000060\"><strong>Blood Circulation Pathways:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Systemic Circulation<\/strong>: Movement of oxygenated blood from the heart to the body and back to the heart with deoxygenated blood.<\/li>\n\n\n\n<li><strong>Pulmonary Circulation<\/strong>: Movement of deoxygenated blood from the heart to the lungs and back, where it is oxygenated.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-c5702085efde58e67ebd3d75697fec14\" style=\"color:#000060\"><strong>Circulatory System and Health:<\/strong><\/h3>\n\n\n\n<p class=\"has-large-font-size\"><strong>Healthy Lifestyle<\/strong>: Regular exercise, balanced diet, and avoiding smoking help maintain a healthy circulatory system.<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong>Common Diseases<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Atherosclerosis<\/strong>: Build-up of plaque in arteries, reducing blood flow.<\/li>\n\n\n\n<li><strong>Hypertension<\/strong>: High blood pressure can damage blood vessels and the heart.<\/li>\n\n\n\n<li><strong>Heart Attack<\/strong>: Occurs when blood flow to a part of the heart is blocked.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-661d6b6ba968ad6b16eabe6f589ce6cb\" style=\"color:#000060\"><strong>Fun Fact:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-large-font-size\">The human circulatory system, if laid out end to end, would stretch for about 100,000 kilometers!<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-color has-large-font-size\" style=\"color:#d90000\"><strong>Let&#8217;s practice!<\/strong><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/wordwall.net\/play\/80321\/177\/478\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-3-54.png\" alt=\"\" class=\"wp-image-6005\" srcset=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-3-54.png 500w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-3-54-300x300.png 300w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-3-54-150x150.png 150w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-3-54-400x400.png 400w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/wordwall.net\/play\/80477\/090\/862\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-2-49.png\" alt=\"\" class=\"wp-image-6006\" srcset=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-2-49.png 500w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-2-49-300x300.png 300w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-2-49-150x150.png 150w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-2-49-400x400.png 400w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Circulatory System circulatory system by Delta publications Key Notes : What is the Circulatory System? Main Parts of the Circulatory System: Heart: A muscular organ that pumps blood throughout the body. Blood Vessels: Tubes that carry blood throughout the body. Blood: Fluid that carries nutrients, oxygen, and waste products. Function of the Circulatory System: How<a class=\"more-link\" href=\"https:\/\/7thclass.deltapublications.in\/index.php\/s-11-a-circulatory-system\/\">Continue reading <span class=\"screen-reader-text\">&#8220;S-11.a Circulatory System&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"om_disable_all_campaigns":false,"footnotes":""},"class_list":["post-3897","page","type-page","status-publish","hentry","entry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"Circulatory System circulatory system by Delta publications Key Notes : What is the Circulatory System? 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The circulatory system is a network of blood vessels and organs that transport blood, nutrients, gases (like oxygen and carbon dioxide), and waste products throughout the body. It consists of the heart, blood vessels, and blood. Main Parts of the","og:url":"https:\/\/7thclass.deltapublications.in\/index.php\/s-11-a-circulatory-system\/","og:image":"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/02\/cropped-Untitled_design__42_-removebg-preview.png","og:image:secure_url":"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/02\/cropped-Untitled_design__42_-removebg-preview.png","article:published_time":"2023-01-09T10:46:12+00:00","article:modified_time":"2025-11-06T05:13:57+00:00","twitter:card":"summary","twitter:title":"S-11.a Circulatory System - 7th Class","twitter:description":"Circulatory System circulatory system by Delta publications Key Notes : What is the Circulatory System? The circulatory system is a network of blood vessels and organs that transport blood, nutrients, gases (like oxygen and carbon dioxide), and waste products throughout the body. It consists of the heart, blood vessels, and blood. Main Parts of the","twitter:image":"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/02\/cropped-Untitled_design__42_-removebg-preview.png"},"aioseo_meta_data":{"post_id":"3897","title":null,"description":null,"keywords":null,"keyphrases":{"focus":{"keyphrase":"","score":0,"analysis":{"keyphraseInTitle":{"score":0,"maxScore":9,"error":1}}},"additional":[]},"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":"","og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":{"id":"#aioseo-web-page-6735d0a1388fb","slug":"web-page","graphName":"WebPage","label":"Web Page","properties":{"type":"WebPage","name":"","description":""}}},"graphName":"WebPage","isEnabled":true},"graphs":[]},"schema_type":"default","schema_type_options":"{\"article\":{\"articleType\":\"BlogPosting\"},\"course\":{\"name\":\"\",\"description\":\"\",\"provider\":\"\"},\"faq\":{\"pages\":[]},\"product\":{\"reviews\":[]},\"recipe\":{\"ingredients\":[],\"instructions\":[],\"keywords\":[]},\"software\":{\"reviews\":[],\"operatingSystems\":[]},\"webPage\":{\"webPageType\":\"WebPage\"}}","pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":"-1","robots_max_videopreview":"-1","robots_max_imagepreview":"large","priority":null,"frequency":"default","local_seo":null,"breadcrumb_settings":null,"limit_modified_date":false,"ai":{"faqs":[],"keyPoints":[],"titles":[],"descriptions":[],"socialPosts":{"email":[],"linkedin":[],"twitter":[],"facebook":[],"instagram":[]}},"created":"2023-01-09 10:46:12","updated":"2025-11-06 05:20:40","seo_analyzer_scan_date":null,"focus_keyword":null,"additional_keywords":null,"truseo_locale":null},"aioseo_breadcrumb":"<div class=\"aioseo-breadcrumbs\"><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/7thclass.deltapublications.in\" title=\"Home\">Home<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\tS-11.a Circulatory System\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/7thclass.deltapublications.in"},{"label":"S-11.a Circulatory System","link":"https:\/\/7thclass.deltapublications.in\/index.php\/s-11-a-circulatory-system\/"}],"_links":{"self":[{"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3897","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/comments?post=3897"}],"version-history":[{"count":18,"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3897\/revisions"}],"predecessor-version":[{"id":17545,"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3897\/revisions\/17545"}],"wp:attachment":[{"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/media?parent=3897"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}