{"id":558,"date":"2013-10-02T19:25:08","date_gmt":"2013-10-02T19:25:08","guid":{"rendered":"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/?p=558"},"modified":"2016-12-10T09:58:13","modified_gmt":"2016-12-10T09:58:13","slug":"la-respiration","status":"publish","type":"post","link":"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/2013\/10\/02\/la-respiration\/","title":{"rendered":"La respiration"},"content":{"rendered":"

Article r\u00e9dig\u00e9 par Audrey – \u00e9l\u00e8ve de cinqui\u00e8me<\/span><\/span><\/strong><\/span><\/p>\n

– En quoi consiste la respiration\u00a0?<\/span><\/span> <\/span><\/span> <\/strong><\/p>\n

Il s’agit d’\u00e9changes gazeux indispensables \u00e0 la vie des \u00eatres vivants. Du dioxyg\u00e8ne est utilis\u00e9 et du dioxyde de carbone ressort.<\/span><\/span><\/strong><\/p>\n

– Comment se manifeste la respiration chez les mammif\u00e8res\u00a0?<\/span><\/span><\/span><\/strong><\/p>\n

L’inspiration de l’air par la bouche ou le nez se manifeste par le gonflement des poumons. On voit la cage thoracique se soulever (sous l’effet de la contraction du diaphragme). <\/span><\/span><\/strong><\/p>\n

L’expiration, \u00e0 l’inverse, se manifeste par une contraction des poumons . La cage thoracique s’abaisse et le diaphragme se rel\u00e2che.<\/span><\/span><\/strong><\/p>\n

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– Les animaux ont-ils tous les m\u00eames organes respirations\u00a0? <\/span><\/span><\/span><\/strong><\/p>\n

On trouve chez les animaux plusieurs organes de respiration\u00a0:<\/span><\/span><\/strong><\/p>\n

– des poumons (hommes, dauphin, baleine, orque, etc.) ;<\/span><\/span><\/strong><\/p>\n

– des trach\u00e9es (insectes comme le criquet) ;<\/span><\/span><\/strong><\/p>\n

– des branchies et des opercules (truite, carpe, etc.).<\/span><\/span><\/strong><\/p>\n

– Comment ces animaux respirent-ils\u00a0? L’escargot \u2013 le criquet \u2013 la truite <\/span><\/span><\/span><\/strong><\/p>\n

L’escargot respire gr\u00e2ce \u00e0 ses poumons, le criquet gr\u00e2ce \u00e0 ses trach\u00e9es et la truite gr\u00e2ce \u00e0 ses opercules et \u00e0 ses branchies.<\/span><\/span><\/strong><\/p>\n

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\n<\/span><\/span><\/strong><\/p>\n

– Le cas particulier de la grenouille <\/span><\/span><\/span><\/strong><\/p>\n

La grenouille se sert de ses poumons pour respirer hors de l’eau et elle se sert de sa peau pour respirer sous l’eau.<\/span><\/span><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Article r\u00e9dig\u00e9 par Audrey – \u00e9l\u00e8ve de cinqui\u00e8me – En quoi consiste la respiration\u00a0? Il s’agit d’\u00e9changes gazeux indispensables \u00e0 la vie des \u00eatres vivants. Du dioxyg\u00e8ne est utilis\u00e9 et du dioxyde de carbone ressort. – Comment se manifeste la respiration chez les mammif\u00e8res\u00a0? L’inspiration de l’air par la bouche ou le nez se manifeste … Continuer la lecture de La respiration<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":3930,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"h5ap_radio_sources":[],"footnotes":""},"categories":[53],"tags":[],"post_folder":[],"class_list":["post-558","post","type-post","status-publish","format-standard","hentry","category-destination-sciences"],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/wp-json\/wp\/v2\/posts\/558","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/wp-json\/wp\/v2\/users\/3930"}],"replies":[{"embeddable":true,"href":"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/wp-json\/wp\/v2\/comments?post=558"}],"version-history":[{"count":0,"href":"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/wp-json\/wp\/v2\/posts\/558\/revisions"}],"wp:attachment":[{"href":"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/wp-json\/wp\/v2\/media?parent=558"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/wp-json\/wp\/v2\/categories?post=558"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/wp-json\/wp\/v2\/tags?post=558"},{"taxonomy":"post_folder","embeddable":true,"href":"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/wp-json\/wp\/v2\/post_folder?post=558"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}