{"id":15740,"date":"2021-11-27T18:45:47","date_gmt":"2021-11-27T11:45:47","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=15740"},"modified":"2021-11-27T18:45:48","modified_gmt":"2021-11-27T11:45:48","slug":"chung-ta-hap-thu-oxy-nhu-the-nao","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/chung-ta-hap-thu-oxy-nhu-the-nao\/","title":{"rendered":"Ch\u00fang ta h\u1ea5p th\u1ee5 oxy nh\u01b0 th\u1ebf n\u00e0o?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 10 &#8211; Arkady Leokum<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Con ng\u01b0\u1eddi kh\u00f4ng th\u1ec3 s\u1ed1ng thi\u1ebfu oxy. Ch\u00fang ta c\u1ea7n oxy \u0111\u1ec3 gi\u1eef cho c\u00e1c qu\u00e1 tr\u00ecnh s\u1ed1ng ch\u1ea1y \u0111\u1ec1u. Oxy \u1edf quanh ch\u00fang ta. N\u00f3 chi\u1ebfm v\u00e0o kho\u1ea3ng 1\/5 kh\u00f4ng kh\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f3 th\u1ec3 c\u00f3 nh\u1eefng nh\u00f3m t\u1ebf b\u00e0o \u0111\u1eb7c bi\u1ec7t cho ph\u00e9p ch\u00fang ta h\u1ea5p th\u1ee5 oxy. Nh\u1eefng t\u1ebf b\u00e0o n\u00e0y \u1edf trong ph\u1ed5i. Ch\u00fang ta h\u00edt kh\u00ed oxy v\u00e0o ph\u1ed5i, t\u1eeb ph\u1ed5i oxy \u0111i qua m\u1ea1ch m\u00e1u v\u00e0 \u0111\u01b0\u1ee3c chuy\u1ec3n t\u1ea3i \u0111i kh\u1eafp c\u01a1 th\u1ec3. Ti\u1ebfn tr\u00ecnh th\u1edf cung c\u1ea5p oxy cho c\u00e1c t\u1ebf b\u00e0o \u0111\u1ec3 h\u00f4 h\u1ea5p.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Oxy m\u00e0 m\u00e1u chuy\u1ec3n t\u1ea3i l\u00e0 m\u1ed9t ph\u1ea7n kh\u00f4ng kh\u00ed ch\u00fang ta th\u1edf. Kh\u00f4ng kh\u00ed \u0111\u01b0\u1ee3c h\u00edt v\u00e0o m\u0169i, \u0111\u01b0\u1ee3c s\u01b0\u1edfi \u1ea5m v\u00e0 thanh l\u1ecdc tr\u00ean \u0111\u01b0\u1eddng qua h\u1ecdng. T\u1eeb h\u1ecdng, kh\u00f4ng kh\u00ed \u0111i qua thanh qu\u1ea3n v\u00e0o kh\u00ed qu\u1ea3n v\u00e0 sau \u0111\u00f3 \u0111\u1ebfn ph\u1ed5i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong ng\u1ef1c, kh\u00ed qu\u1ea3n chia hai th\u00e0nh hai \u1ed1ng v\u00e0 \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u1ed1ng cu\u1ed1ng ph\u1ed5i, m\u1ed7i \u1ed1ng d\u1eabn \u0111\u1ebfn m\u1ed9t trong hai l\u00e1 ph\u1ed5i. \u1ede \u0111\u00e2y hai \u1ed1ng \u1ea5y chia th\u00e0nh nh\u1eefng \u1ed1ng nh\u1ecf h\u01a1n. M\u1ed7i \u1ed1ng nh\u1ecf nh\u1ea5t l\u1ea1i chia ra th\u00e0nh nh\u1eefng ph\u1ebf nang c\u00f3 th\u00e0nh m\u1ecfng, m\u1ecdc chi ch\u00edt nh\u01b0 ch\u00f9m nho, l\u00e0m th\u00e0nh m\u1ed9t m\u1ea1ng l\u01b0\u1edbi.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u00e1i tim b\u01a1m m\u00e1u v\u00e0o m\u1ea1ng l\u01b0\u1edbi nh\u1ecf li ti c\u1ee7a ph\u1ebf nang. \u1ede \u0111\u00e2y x\u1ea3y ra m\u1ed9t s\u1ef1 trao \u0111\u1ed5i nhanh ch\u00f3ng. Kh\u00ed carbon dioxid \u0111i qua th\u00e0nh m\u1ecfng c\u1ee7a ph\u1ebf nang \u0111\u1ec3 v\u00e0o c\u00e1c t\u00fai h\u01a1i. Oxy t\u1eeb t\u00fai h\u01a1i \u0111i v\u00e0o mao qu\u1ea3n nh\u1ecf li ti v\u00e0 c\u00e1c t\u1ebf b\u00e0o m\u00e1u \u0111\u1ecf. Gi\u1edd \u0111\u00e2y m\u00e1u ch\u1ee9a oxy di chuy\u1ec3n v\u1ec1 b\u00ean tr\u00e1i c\u1ee7a tr\u00e1i tim. T\u1eeb \u0111\u1ea5y, tr\u00e1i tim b\u01a1m m\u00e1u c\u00f3 ch\u1ee9a oxy \u0111\u1ebfn c\u00e1c t\u1ebf b\u00e0o c\u1ee7a c\u01a1 th\u1ec3.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 10 &#8211; Arkady Leokum Con ng\u01b0\u1eddi kh\u00f4ng th\u1ec3 s\u1ed1ng thi\u1ebfu oxy. Ch\u00fang ta c\u1ea7n oxy \u0111\u1ec3 gi\u1eef cho c\u00e1c qu\u00e1 tr\u00ecnh s\u1ed1ng ch\u1ea1y \u0111\u1ec1u. Oxy \u1edf quanh ch\u00fang ta. N\u00f3 chi\u1ebfm v\u00e0o kho\u1ea3ng 1\/5 kh\u00f4ng kh\u00ed. C\u00f3 th\u1ec3 c\u00f3 nh\u1eefng nh\u00f3m t\u1ebf b\u00e0o [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[15],"tags":[],"class_list":["post-15740","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/15740","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=15740"}],"version-history":[{"count":1,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/15740\/revisions"}],"predecessor-version":[{"id":15741,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/15740\/revisions\/15741"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=15740"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=15740"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=15740"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}