{"id":3734,"date":"2023-01-09T10:25:14","date_gmt":"2023-01-09T10:25:14","guid":{"rendered":"https:\/\/9thclass.deltapublications.in\/?page_id=3734"},"modified":"2025-12-19T08:56:26","modified_gmt":"2025-12-19T08:56:26","slug":"s-12-b-structure-of-human-ear","status":"publish","type":"page","link":"https:\/\/9thclass.deltapublications.in\/index.php\/s-12-b-structure-of-human-ear\/","title":{"rendered":"S-12.b Structure Of Human Ear"},"content":{"rendered":"\n<p class=\"has-text-align-center has-text-color has-huge-font-size\" style=\"color:#00056d;text-transform:uppercase\"><strong>structure of human ear<\/strong><\/p>\n\n\n\n<div class=\"wp-block-group has-large-font-size\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"has-text-color has-huge-font-size\" style=\"color:#74008b\"><strong>Key Notes:<\/strong><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter is-resized\"><img decoding=\"async\" src=\"https:\/\/cdn.britannica.com\/04\/14304-050-1A5E3289\/structures-outer-ear.jpg?utm_source=chatgpt.com\" alt=\"https:\/\/cdn.britannica.com\/04\/14304-050-1A5E3289\/structures-outer-ear.jpg?utm_source=chatgpt.com\" style=\"width:396px;height:auto\"\/><\/figure><\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter is-resized\"><img decoding=\"async\" src=\"https:\/\/i.ytimg.com\/vi\/D2hNoSy66fM\/maxresdefault.jpg?utm_source=chatgpt.com\" alt=\"https:\/\/i.ytimg.com\/vi\/D2hNoSy66fM\/maxresdefault.jpg?utm_source=chatgpt.com\" style=\"width:393px;height:auto\"\/><\/figure><\/div>\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/media.geeksforgeeks.org\/wp-content\/uploads\/20250614114743290655\/ear.webp?utm_source=chatgpt.com\" alt=\"https:\/\/media.geeksforgeeks.org\/wp-content\/uploads\/20250614114743290655\/ear.webp?utm_source=chatgpt.com\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udd39 Overview<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The <strong>human ear<\/strong> is the organ of <strong>hearing<\/strong> and <strong>balance<\/strong>.<\/li>\n\n\n\n<li>It has <strong>three main parts<\/strong>: <strong>Outer Ear<\/strong>, <strong>Middle Ear<\/strong>, and <strong>Inner Ear<\/strong>.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading has-large-font-size\">1\ufe0f\u20e3 Outer Ear<\/h3>\n\n\n\n<p><strong>Parts:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Pinna (Auricle):<\/strong> Collects sound waves.<\/li>\n\n\n\n<li><strong>Auditory canal (Ear canal):<\/strong> Carries sound to the eardrum.<\/li>\n<\/ul>\n\n\n\n<p><strong>Function:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Collects and directs sound waves toward the <strong>eardrum<\/strong>.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading has-large-font-size\">2\ufe0f\u20e3 Middle Ear<\/h3>\n\n\n\n<p><strong>Parts:<\/strong><\/p>\n\n\n\n<p><strong>Eardrum (Tympanic membrane):<\/strong> Vibrates when sound waves strike it.<\/p>\n\n\n\n<p><strong>Three tiny bones (Ossicles):<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Malleus (Hammer)<\/strong><\/li>\n\n\n\n<li><strong>Incus (Anvil)<\/strong><\/li>\n\n\n\n<li><strong>Stapes (Stirrup)<\/strong><\/li>\n<\/ul>\n\n\n\n<p><strong>Eustachian tube:<\/strong> Connects middle ear to the throat.<\/p>\n\n\n\n<p><strong>Function:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Amplifies sound vibrations<\/strong> and transmits them to the inner ear.<\/li>\n\n\n\n<li><strong>Eustachian tube<\/strong> helps maintain <strong>equal air pressure<\/strong> on both sides of the eardrum.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading has-large-font-size\">3\ufe0f\u20e3 Inner Ear<\/h3>\n\n\n\n<p><strong>Parts:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Cochlea:<\/strong> Spiral-shaped, filled with fluid.<\/li>\n\n\n\n<li><strong>Semicircular canals:<\/strong> Three loop-like structures.<\/li>\n\n\n\n<li><strong>Auditory (Vestibulocochlear) nerve<\/strong><\/li>\n<\/ul>\n\n\n\n<p><strong>Function:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Cochlea:<\/strong> Converts sound vibrations into <strong>nerve impulses<\/strong> (hearing).<\/li>\n\n\n\n<li><strong>Semicircular canals:<\/strong> Maintain <strong>balance and posture<\/strong>.<\/li>\n\n\n\n<li><strong>Auditory nerve:<\/strong> Carries impulses to the <strong>brain<\/strong>.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading has-large-font-size\">\ud83e\udde0 How We Hear (In Short)<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Sound enters the <strong>outer ear<\/strong>.<\/li>\n\n\n\n<li>Vibrations pass through the <strong>eardrum and ossicles<\/strong>.<\/li>\n\n\n\n<li>The <strong>cochlea<\/strong> converts vibrations into nerve signals.<\/li>\n\n\n\n<li>The <strong>brain<\/strong> interprets these signals as sound.<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading has-large-font-size\">\u2b50 Exam Tips<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Remember the order: <strong>Pinna \u2192 Eardrum \u2192 Ossicles \u2192 Cochlea \u2192 Brain<\/strong><\/li>\n\n\n\n<li>Learn the <strong>names of ossicles<\/strong> in order: <strong>Malleus \u2192 Incus \u2192 Stapes<\/strong><\/li>\n\n\n\n<li>Inner ear = <strong>Hearing + Balance<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-color has-large-font-size\" style=\"color:#d90000\">Let&#8217;s practice!<\/p>\n<\/div><\/div>\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\/82472\/825\/372\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-54.png\" alt=\"\" class=\"wp-image-6502\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-54.png 500w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-54-300x300.png 300w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-54-150x150.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\/81561\/597\/516\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-57.png\" alt=\"\" class=\"wp-image-6503\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-57.png 500w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-57-300x300.png 300w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-57-150x150.png 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>structure of human ear Key Notes: \ud83d\udd39 Overview 1\ufe0f\u20e3 Outer Ear Parts: Function: 2\ufe0f\u20e3 Middle Ear Parts: Eardrum (Tympanic membrane): Vibrates when sound waves strike it. Three tiny bones (Ossicles): Eustachian tube: Connects middle ear to the throat. Function: 3\ufe0f\u20e3 Inner Ear Parts: Function: \ud83e\udde0 How We Hear (In Short) \u2b50 Exam Tips 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-3734","page","type-page","status-publish","hentry","entry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3734","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/comments?post=3734"}],"version-history":[{"count":16,"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3734\/revisions"}],"predecessor-version":[{"id":18327,"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3734\/revisions\/18327"}],"wp:attachment":[{"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/media?parent=3734"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}