{"id":7003,"date":"2026-02-06T09:49:39","date_gmt":"2026-02-06T08:49:39","guid":{"rendered":"https:\/\/nehomy.com\/?page_id=7003"},"modified":"2026-04-27T10:43:31","modified_gmt":"2026-04-27T08:43:31","slug":"a-quoi-servent-les-reins","status":"publish","type":"page","link":"https:\/\/nehomy.com\/en\/what-is-ckd\/what-do-the-kidneys-do\/","title":{"rendered":"What do the kidneys do?"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"7003\" class=\"elementor elementor-7003\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-76b3b301 e-flex e-con-boxed e-con e-parent\" data-id=\"76b3b301\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-aa1bb55 e-con-full e-flex e-con e-child\" data-id=\"aa1bb55\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3e09771d elementor-widget elementor-widget-text-editor\" data-id=\"3e09771d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h1>What do the <br \/><strong>kidneys do?<\/strong><\/h1>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-d113ed5 e-con-full e-flex e-con e-child\" data-id=\"d113ed5\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1873af0 elementor-widget elementor-widget-image\" data-id=\"1873af0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1\" height=\"1\" src=\"https:\/\/nehomy.com\/wp-content\/uploads\/2026\/02\/EMI-infirmiere.svg\" class=\"attachment-large size-large wp-image-6980\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-019873f e-flex e-con-boxed e-con e-parent\" data-id=\"019873f\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f837d58 elementor-widget elementor-widget-text-editor\" data-id=\"f837d58\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p style=\"text-align: center;\">The kidneys play a crucial role in the human body by filtering waste products and excess water from the blood, regulating blood pressure and maintaining electrolyte balance.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-ecf9ac5 e-flex e-con-boxed e-con e-parent\" data-id=\"ecf9ac5\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-e4cb9c7 e-con-full e-flex e-con e-child\" data-id=\"e4cb9c7\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-219be38 e-con-full e-flex e-con e-child\" data-id=\"219be38\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9b2810b elementor-widget elementor-widget-image\" data-id=\"9b2810b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/nehomy.com\/wp-content\/uploads\/2026\/05\/schema-rein-EN.svg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"schema-rein\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NzU0MywidXJsIjoiaHR0cHM6XC9cL25laG9teS5jb21cL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMjZcLzAyXC9zY2hlbWEtcmVpbi5zdmcifQ%3D%3D\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1\" height=\"1\" src=\"https:\/\/nehomy.com\/wp-content\/uploads\/2026\/05\/schema-rein-EN.svg\" class=\"attachment-large size-large wp-image-7543\" alt=\"\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-38df7d7 e-con-full e-flex e-con e-child\" data-id=\"38df7d7\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7b503e3 elementor-widget elementor-widget-text-editor\" data-id=\"7b503e3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2 style=\"text-align: left;\">What do they look like?<\/h2><p>The kidneys are two bean-shaped organs located on either side of the spine in the lower part of the abdomen. They measure approximately 10 to 12 centimetres in length, 5 to 7 centimetres in width and 3 to 4 centimetres in thickness.<sup>19<\/sup><\/p><p>Each kidney is made up of several layers:<\/p><ul><li><strong>The cortex<\/strong> : the outer layer, where the nephrons (the functional units of the kidneys) are located.<\/li><li><strong>The renal medulla<\/strong> : the inner layer, made up of structures called renal pyramids.<\/li><li><strong>The calyces<\/strong> : the inner layer, made up of structures called renal pyramids.<\/li><li><strong>The renal pelvis<\/strong>\u00a0: a larger cavity where urine from the calyces is collected before passing into the ureters.<\/li><\/ul><p>The kidneys are also surrounded by a fibrous capsule and fatty tissue that protect them.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-99b4ece e-flex e-con-boxed e-con e-parent\" data-id=\"99b4ece\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-3406fb6 e-con-full e-flex e-con e-child\" data-id=\"3406fb6\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-4c43d9a e-con-full e-flex e-con e-child\" data-id=\"4c43d9a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-dacfc06 elementor-widget elementor-widget-text-editor\" data-id=\"dacfc06\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2>What are their functions?<\/h2><p>Your kidneys play an essential role in removing waste products and toxins produced by your body after meals or physical activity. They continuously filter your blood through millions of nephrons, transforming excess fluids and waste into urine. This urine is then transported to the bladder before being naturally eliminated.<sup>19<\/sup><\/p><p>In addition, the kidneys perform several vital functions within the body:<\/p><p><strong>Fluid and electrolyte balance:<\/strong> They regulate the amount of water and minerals (such as sodium and potassium) in the body.<\/p><p><strong>Hormone production<\/strong> :<\/p><ul><li>They release hormones (through the renin\u2013angiotensin system) that help regulate blood pressure by controlling blood volume.<\/li><li>They contribute to the production of erythropoietin (EPO), which stimulates red blood cell production, and activate vitamin D, which is essential for maintaining healthy bones.<\/li><\/ul><div>\u00a0<\/div><p><strong>Calcium and phosphate metabolism<\/strong> : The kidneys regulate the reabsorption and excretion of these two substances. An increase in phosphate levels can lead to a decrease in calcium levels, and vice versa. The kidneys help maintain this delicate balance.<\/p><p>When the kidneys are damaged, they are no longer able to fully perform these functions, which can lead to many health consequences.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4241496 e-con-full e-flex e-con e-child\" data-id=\"4241496\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9ef392e elementor-widget elementor-widget-image\" data-id=\"9ef392e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1\" height=\"1\" src=\"https:\/\/nehomy.com\/wp-content\/uploads\/2026\/01\/image-2-conseil.svg\" class=\"attachment-large size-large wp-image-6776\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-3a43a2e2 e-flex e-con-boxed e-con e-parent\" data-id=\"3a43a2e2\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-79a0988 e-con-full e-flex e-con e-child\" data-id=\"79a0988\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-62f9fd1a elementor-align-left elementor-widget elementor-widget-button\" data-id=\"62f9fd1a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/nehomy.com\/en\/what-is-ckd\/symptoms-of-ckd\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"63\" height=\"63\" viewbox=\"0 0 63 63\" fill=\"none\"><circle cx=\"31.3606\" cy=\"31.3606\" r=\"30.6479\" fill=\"white\" stroke=\"#FF6E6E\" stroke-width=\"1.42548\"><\/circle><path d=\"M21.3823 31.3607C20.5951 31.3607 19.9568 31.9989 19.9568 32.7861C19.9568 33.5734 20.5951 34.2116 21.3823 34.2116L21.3823 32.7861L21.3823 31.3607ZM47.041 32.7861L32.7862 24.5561L32.7862 41.0162L47.041 32.7861ZM21.3823 32.7861L21.3823 34.2116L34.2117 34.2116L34.2117 32.7861L34.2117 31.3606L21.3823 31.3607L21.3823 32.7861Z\" fill=\"#FF6E6E\"><\/path><\/svg>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">What are the symptoms?<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7dae501d elementor-widget elementor-widget-button\" data-id=\"7dae501d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/nehomy.com\/en\/what-is-ckd\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Back to What is CKD?<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>\u00c0 quoi servent les reins ? Les reins jouent un r\u00f4le crucial dans le corps humain en filtrant les d\u00e9chets et l&rsquo;exc\u00e8s d\u2019eau dans le sang, en r\u00e9gulant la pression art\u00e9rielle et en maintenant l&rsquo;\u00e9quilibre des \u00e9lectrolytes. \u00c0 quoi ressemblent-ils ? Les reins sont deux organes en forme de haricot situ\u00e9s de part et d\u2019autre de la colonne vert\u00e9brale dans la partie inf\u00e9rieure de l\u2019abdomen. Ils mesurent environ 10 \u00e0 12 centim\u00e8tres de long, 5 \u00e0 7 centim\u00e8tres de large et 3 \u00e0 4 centim\u00e8tres d&rsquo;\u00e9paisseur.19 Chaque rein est compos\u00e9 de plusieurs couches : Le cortex : La couche externe, o\u00f9 se trouvent les n\u00e9phrons, les unit\u00e9s fonctionnelles des reins. La m\u00e9dullaire r\u00e9nale : La couche interne, compos\u00e9e de structures appel\u00e9es pyramides r\u00e9nales. Les calices : Une structure en forme de coupe qui collecte l&rsquo;urine des pyramides r\u00e9nales. Le bassinet ou pelvis r\u00e9nal\u00a0: Une cavit\u00e9 plus large o\u00f9 l&rsquo;urine des [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":6990,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":"","_members_access_role":[],"_members_access_error":""},"class_list":["post-7003","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.1 (Yoast SEO v28.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>L&#039;HDD au quotidien - Conseils Pratiques - Patients - Nehomy - H\u00e9modialyse \u00e0 Domicile<\/title>\n<meta name=\"description\" content=\"Conseils pratiques pour int\u00e9grer l\u2019h\u00e9modialyse quotidienne \u00e0 domicile\u202f: organisez vos s\u00e9ances, am\u00e9nagez un espace d\u00e9di\u00e9, suivez votre traitement et optimisez votre qualit\u00e9 de vie gr\u00e2ce \u00e0 un accompagnement adapt\u00e9.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/nehomy.com\/en\/what-is-ckd\/what-do-the-kidneys-do\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u00c0 quoi servent les reins ?\" \/>\n<meta property=\"og:description\" content=\"Conseils pratiques pour int\u00e9grer l\u2019h\u00e9modialyse quotidienne \u00e0 domicile\u202f: organisez vos s\u00e9ances, am\u00e9nagez un espace d\u00e9di\u00e9, suivez votre traitement et optimisez votre qualit\u00e9 de vie gr\u00e2ce \u00e0 un accompagnement adapt\u00e9.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/nehomy.com\/en\/what-is-ckd\/what-do-the-kidneys-do\/\" \/>\n<meta property=\"og:site_name\" content=\"Nehomy\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/Nehomy\" \/>\n<meta property=\"article:modified_time\" content=\"2026-04-27T08:43:31+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/nehomy.com\/wp-content\/uploads\/2026\/02\/EMI-infirmiere.svg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/nehomy.com\\\/quest-ce-que-lirc\\\/a-quoi-servent-les-reins\\\/\",\"url\":\"https:\\\/\\\/nehomy.com\\\/quest-ce-que-lirc\\\/a-quoi-servent-les-reins\\\/\",\"name\":\"L'HDD au quotidien - 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