{"id":3246,"date":"2022-12-13T05:41:48","date_gmt":"2022-12-13T05:41:48","guid":{"rendered":"https:\/\/5thclass.deltapublications.in\/?page_id=3246"},"modified":"2025-08-21T10:36:17","modified_gmt":"2025-08-21T10:36:17","slug":"s-5-a-the-skeletal-system","status":"publish","type":"page","link":"https:\/\/5thclass.deltapublications.in\/index.php\/s-5-a-the-skeletal-system\/","title":{"rendered":"s-5.a The Skeletal System"},"content":{"rendered":"\n<h2 class=\"wp-block-heading has-text-align-center has-text-color\" style=\"color:#00056d;text-transform:uppercase\"><strong>The Skeletal 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\/DAGDxfQXeZg\/CHY80lwarhNYYhQHZCt-rA\/watch?embed\" allowfullscreen=\"allowfullscreen\" allow=\"fullscreen\">\n  <\/iframe>\n<\/div>\n<a href=\"https:&#x2F;&#x2F;www.canva.com&#x2F;design&#x2F;DAGDxfQXeZg&#x2F;CHY80lwarhNYYhQHZCt-rA&#x2F;watch?utm_content=DAGDxfQXeZg&amp;utm_campaign=designshare&amp;utm_medium=embeds&amp;utm_source=link\" target=\"_blank\" rel=\"noopener\">skeleton system<\/a> by Delta publications\n<\/div>\n<\/div>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"349\" height=\"811\" src=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/09\/383b5ac9-d837-4c3d-b55e-59414e8dc1be.png\" alt=\"\" class=\"wp-image-13099\" style=\"aspect-ratio:0.43033292231812575;width:127px;height:auto\" srcset=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/09\/383b5ac9-d837-4c3d-b55e-59414e8dc1be.png 349w, https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/09\/383b5ac9-d837-4c3d-b55e-59414e8dc1be-129x300.png 129w\" sizes=\"auto, (max-width: 349px) 100vw, 349px\" \/><\/figure><\/div>\n\n\n<p class=\"has-text-color has-huge-font-size\" style=\"color:#740086\"><strong>Key Notes:<\/strong><\/p>\n\n\n\n<p class=\"has-text-color has-large-font-size\" style=\"color:#000060\"><strong>Definition of the Skeletal System<\/strong>:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"380\" height=\"326\" src=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/image-38.png\" alt=\"\" class=\"wp-image-13988\" srcset=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/image-38.png 380w, https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/image-38-300x257.png 300w\" sizes=\"auto, (max-width: 380px) 100vw, 380px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-large-font-size\">The skeletal system is the framework of bones that supports and shapes the body.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-color has-large-font-size\" style=\"color:#000060\"><strong>Functions of the Skeletal System<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Support<\/strong>: The bones provide structure and support for the body, helping to maintain shape.<\/li>\n\n\n\n<li><strong>Movement<\/strong>: Bones work with muscles to enable movement.<\/li>\n\n\n\n<li><strong>Protection<\/strong>: The skeletal system protects vital organs (e.g., the skull protects the brain, and the ribcage protects the heart and lungs).<\/li>\n\n\n\n<li><strong>Production of Blood Cells<\/strong>: Bones contain bone marrow, which produces red and white blood cells.<\/li>\n\n\n\n<li><strong>Storage of Minerals<\/strong>: Bones store important minerals like calcium and phosphorus.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-color has-large-font-size\" style=\"color:#000060\"><strong>Types of Bones<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Long Bones<\/strong>: Found in arms and legs (e.g., femur, humerus).<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"627\" height=\"1024\" src=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/image-39-627x1024.png\" alt=\"\" class=\"wp-image-13990\" style=\"aspect-ratio:0.6123046875;width:233px;height:auto\" srcset=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/image-39-627x1024.png 627w, https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/image-39-184x300.png 184w, https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/image-39.png 708w\" sizes=\"auto, (max-width: 627px) 100vw, 627px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Short Bones<\/strong>: Found in wrists and ankles (e.g., carpals, tarsals).<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"717\" src=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/Untitled-design-45.png\" alt=\"\" class=\"wp-image-13993\" style=\"aspect-ratio:1.4281729428172942;width:357px;height:auto\" srcset=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/Untitled-design-45.png 1024w, https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/Untitled-design-45-300x210.png 300w, https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/Untitled-design-45-768x538.png 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Flat Bones<\/strong>: Protect internal organs (e.g., skull, ribs).<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"250\" height=\"250\" src=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/image-42.png\" alt=\"\" class=\"wp-image-13994\" srcset=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/image-42.png 250w, https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/image-42-150x150.png 150w\" sizes=\"auto, (max-width: 250px) 100vw, 250px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Irregular Bones<\/strong>: Have complex shapes (e.g., vertebrae, jawbone).<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"717\" src=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/Untitled-design-46.png\" alt=\"\" class=\"wp-image-13995\" style=\"aspect-ratio:1.4281729428172942;width:351px;height:auto\" srcset=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/Untitled-design-46.png 1024w, https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/Untitled-design-46-300x210.png 300w, https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/Untitled-design-46-768x538.png 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n<p class=\"has-text-color has-large-font-size\" style=\"color:#000060\"><strong>Major Parts of the Skeletal System<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Skull<\/strong>: Protects the brain.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/image-43-1024x576.png\" alt=\"\" class=\"wp-image-13996\" style=\"aspect-ratio:1.7777777777777777;width:453px;height:auto\" srcset=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/image-43-1024x576.png 1024w, https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/image-43-300x169.png 300w, https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/image-43-768x432.png 768w, https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/image-43-1536x864.png 1536w, https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/image-43-1568x882.png 1568w, https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/image-43.png 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Spine (Vertebral Column)<\/strong>: Consists of vertebrae and supports the body.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"700\" src=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/image-44.png\" alt=\"\" class=\"wp-image-13997\" style=\"aspect-ratio:1;width:358px;height:auto\" srcset=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/image-44.png 700w, https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/image-44-300x300.png 300w, https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/image-44-150x150.png 150w, https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/image-44-400x400.png 400w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Ribcage<\/strong>: Protects the heart and lungs.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/image-45-1024x1024.png\" alt=\"\" class=\"wp-image-13998\" style=\"aspect-ratio:1;width:338px;height:auto\" srcset=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/image-45-1024x1024.png 1024w, https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/image-45-300x300.png 300w, https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/image-45-150x150.png 150w, https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/image-45-768x768.png 768w, https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/image-45-400x400.png 400w, https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/image-45.png 1080w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Limbs<\/strong>: Includes arms and legs, made up of bones like the humerus (upper arm), radius and ulna (forearm), femur (thigh), and tibia and fibula (lower leg).<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-color has-large-font-size\" style=\"color:#000060\"><strong>Joints<\/strong>:<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong>Definition<\/strong>: Joints are places where two or more bones meet.<\/p>\n\n\n\n<p class=\"has-text-color has-large-font-size\" style=\"color:#000060\"><strong>Types of Joints<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Hinge Joint<\/strong>: Allows back-and-forth movement (e.g., elbow, knee).<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"575\" src=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/image-46.png\" alt=\"\" class=\"wp-image-13999\" style=\"aspect-ratio:1.7808695652173914;width:399px;height:auto\" srcset=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/image-46.png 1024w, https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/image-46-300x168.png 300w, https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/image-46-768x431.png 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Ball-and-Socket Joint<\/strong>: Allows movement in many directions (e.g., shoulder, hip).<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"966\" src=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/2b97d546-406e-4a6a-8bc5-265d96ed48f6.png\" alt=\"\" class=\"wp-image-14003\" style=\"aspect-ratio:1.0158730158730158;width:356px;height:auto\" srcset=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/2b97d546-406e-4a6a-8bc5-265d96ed48f6.png 1024w, https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/2b97d546-406e-4a6a-8bc5-265d96ed48f6-300x283.png 300w, https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/2b97d546-406e-4a6a-8bc5-265d96ed48f6-768x725.png 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Pivot Joint<\/strong>: Allows rotation (e.g., neck).<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/image-48-1024x683.png\" alt=\"\" class=\"wp-image-14001\" style=\"aspect-ratio:1.499267935578331;width:357px;height:auto\" srcset=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/image-48-1024x683.png 1024w, https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/image-48-300x200.png 300w, https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/image-48-768x512.png 768w, https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/image-48.png 1500w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n<p class=\"has-text-color has-large-font-size\" style=\"color:#000060\"><strong>Cartilage<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-large-font-size\">A flexible, rubbery tissue that cushions joints and prevents bones from rubbing together.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-color has-large-font-size\" style=\"color:#000060\"><strong>Ligaments<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-large-font-size\">Strong tissues that connect bones to each other at joints.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-color has-large-font-size\" style=\"color:#000060\"><strong>Bones and Health<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Bone Care<\/strong>: Exercise and a diet rich in calcium and vitamin D are important for strong bones.<\/li>\n\n\n\n<li><strong>Osteoporosis<\/strong>: A condition where bones become weak and brittle due to lack of calcium.<\/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\/77781\/650\/658\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-13.png\" alt=\"\" class=\"wp-image-5082\" srcset=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-13.png 500w, https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-13-300x300.png 300w, https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-13-150x150.png 150w\" 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\/59867\/517\/678\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-13.png\" alt=\"\" class=\"wp-image-5083\" srcset=\"https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-13.png 500w, https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-13-300x300.png 300w, https:\/\/5thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-13-150x150.png 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>The Skeletal System skeleton system by Delta publications Key Notes: Definition of the Skeletal System: Functions of the Skeletal System: Types of Bones: Major Parts of the Skeletal System: Joints: Definition: Joints are places where two or more bones meet. Types of Joints: Cartilage: Ligaments: Bones and Health: Let&#8217;s practice!<\/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,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-3246","page","type-page","status-publish","hentry","entry"],"_links":{"self":[{"href":"https:\/\/5thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3246","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/5thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/5thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/5thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/5thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/comments?post=3246"}],"version-history":[{"count":23,"href":"https:\/\/5thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3246\/revisions"}],"predecessor-version":[{"id":15583,"href":"https:\/\/5thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3246\/revisions\/15583"}],"wp:attachment":[{"href":"https:\/\/5thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/media?parent=3246"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}