Lung

Human lungs and heart

The lung is an organ in many vertebrates (animals having a spine, or backbone). It takes blood oxygen from the air, and expels carbon dioxide. Most vertebrates with lungs have two of them.

In animals, the lungs are the area where gas exchange takes place. Without gas exchange, oxygen would not pass into the blood from the lungs so the body cells would not be able to receive the oxygen needed for respiration.

The alveoli are moist to allow oxygen to move from the lung through the alveoli into blood vessels and red blood cells. Carbon dioxide passes from the blood into the alveoli. The oxygen-filled blood goes back to the heart and the carbon dioxide in the alveoli is pushed out of the lungs and into the air we breathe out.

Bird lung

Birds lungs are smaller than mammal lungs, and do not have alveoli, instead they have millions of para-bronchi. These para-bronchi end up in tiny capillaries or very small blood vessels and they pass close to the body's blood vessels, so diffusion can occur and the oxygen and carbon dioxide is exchanged. The oxygen and carbon dioxide in birds lungs are continuously diffused into and out of the blood, not like in mammals where diffusion can only happen in the alveoli. Air does not go into and back out of the lungs as in mammals. Instead, muscular air sacs push the air forward through bird lungs.

Other Languages
Acèh: S'ueb
Afrikaans: Long
Alemannisch: Lunge
አማርኛ: ሳምባ
العربية: رئة
aragonés: Polmón
ܐܪܡܝܐ: ܪܐܬܐ
armãneashti: Plimunu
অসমীয়া: হাঁওফাঁও
asturianu: Pulmón
Atikamekw: Opan
Avañe'ẽ: Ñe'ãvevúi
авар: Гьуърул
Aymar aru: Chuyma
azərbaycanca: Ağciyər
تۆرکجه: آغجییر
বাংলা: ফুসফুস
Bân-lâm-gú: Hì (khì-koan)
Basa Banyumasan: Paru-paru
башҡортса: Үпкә
беларуская: Лёгкія
беларуская (тарашкевіца)‎: Лёгкія
Bikol Central: Bagâ
български: Бял дроб
bosanski: Pluća
brezhoneg: Skevent
буряад: Уушхан
català: Pulmó
Чӑвашла: Ӳпке
čeština: Plíce
chiShona: Mapapu
Cymraeg: Ysgyfaint
Deutsch: Lunge
ދިވެހިބަސް: ފުއްޕާމޭ
eesti: Kopsud
Ελληνικά: Πνεύμονας
English: Lung
español: Pulmones
Esperanto: Pulmo
euskara: Birika
فارسی: ریه
français: Poumon
Frysk: Long
Gaeilge: Scamhóg
Gàidhlig: Sgamhan
galego: Pulmón
ગુજરાતી: ફેફસાં
客家語/Hak-kâ-ngî: Hi
хальмг: Оошг
한국어: 허파
հայերեն: Թոքեր
हिन्दी: फेफड़ा
hrvatski: Pluća
Ido: Pulmono
Ilokano: Bara
Bahasa Indonesia: Paru-paru
interlingua: Pulmones
Iñupiak: Puvak
isiXhosa: Imiphunga
íslenska: Lunga
italiano: Polmone
עברית: ריאה
Basa Jawa: Paru-paru
Kabɩyɛ: Hʋzʋʋ
ಕನ್ನಡ: ಶ್ವಾಸಕೋಶ
Kapampangan: Baga
ქართული: ფილტვები
қазақша: Өкпе
Kiswahili: Mapafu
Кыргызча: Өпкө
кырык мары: Шоды
лакку: Гьутру
Latina: Pulmo
latviešu: Plaušas
лезги: Жигер
lietuvių: Plaučiai
Limburgs: Lónge
lingála: Lipúlúlú
Lingua Franca Nova: Pulmon
la .lojban.: fepri
magyar: Tüdő
македонски: Бели дробови
മലയാളം: ശ്വാസകോശം
Malti: Pulmun
मराठी: फुफ्फुस
მარგალური: ფიჟვი
Bahasa Melayu: Paru-paru
Mìng-dĕ̤ng-ngṳ̄: Hié (ké-guăng)
монгол: Уушги
မြန်မာဘာသာ: အဆုတ်
Nederlands: Long (orgaan)
नेपाली: फोक्सो
नेपाल भाषा: लुङ
日本語:
norsk: Lunge
norsk nynorsk: Lunge
occitan: Palmon
oʻzbekcha/ўзбекча: Oʻpka
ਪੰਜਾਬੀ: ਫੇਫੜਾ
Pangasinan: Bala
پنجابی: پھپھڑے
Papiamentu: Pulmon
پښتو: سږي
Patois: Long
polski: Płuco
português: Pulmão humano
română: Plămân
Runa Simi: Surq'an
русский: Лёгкие
саха тыла: Тыҥа
संस्कृतम्: फुफ्फुसः
Scots: Buffs
shqip: Mushkëria
sicilianu: Purmuna
سنڌي: ڦڦڙ
slovenčina: Pľúca
slovenščina: Pljuča
Soomaaliga: Sambab
српски / srpski: Плућа
srpskohrvatski / српскохрватски: Pluća
Basa Sunda: Bayah
suomi: Keuhkot
svenska: Lunga
татарча/tatarça: Үпкә
ไทย: ปอด
тоҷикӣ: Шуш
Türkçe: Akciğer
українська: Легені
اردو: پھیپھڑے
ئۇيغۇرچە / Uyghurche: ئۆپكە
Vahcuengh: Bwt
vèneto: Polmon
Tiếng Việt: Phổi
Võro: Täü
walon: Peumon
文言:
吴语:
ייִדיש: לונג
粵語:
Zazaki: Ciger
中文: