Реферат на тему:
Lungs (легені)
Lungs.
What important function do our lungs fulfil?
Lungs are a pair of organs which are situated in the chest. They fulfil very important function of vital activity known as respiration. Our lungs are conical in shape. Their apexes project into the neck and their bases rest upon the diaphragm. There is an anterior border behind the middle of the breast bone.
How many lobes do the lungs contain?
There the outer and inner surfaces meet and the borders of the two lungs touch one another. The right lung contains three lobes and the left has two lobes. Each lung is a pleural membrane or the pleura.
What can one see between the two layers of the pleural membrane?
It has two layers which form the pleural cavity. This cavity is in the natural state, a merely potential space. One can see a thin layer of fluid between the two layers of the pleural membrane. It enables them to glide with very little friction over one another.
What colour may the lungs be?
The lungs expand and retract in breathing. The colour of the lungs in children is rosy-pink but in adults they may be grey, dark-grey or black. It is due to deposits of dust and smoke in the lymph spaces.
What does the process of inspiration and expiration allow the blood to do?
During our respiration air passes rhythmically into and out of the air passages in the lungs. These two movements are known as inspiration and expiration. This process allows the blood to absorb oxygen and to give off carbon dioxide and water.
Легені.
Яку важливу функцію виконують наші легені?
Легені – це парний орган, який розміщений у грудях. Вони виконують дуже життєво необхідну функцію, відому як дихання. Наші легені за формою конічні. Їх верхні частини виступають від шиї, а решта частин до діафрагми. Передня межа є заді середини грудної клітки.
З скількох частин складаються легені?
Внутрішні і зовнішні поверхності зустрічаються і межі двох легень торкаються одна одної. Права легеня складається з трьох частин, а ліва з двох частин. Кожна легеня оточена плеврою.
Що можна побачити між двома шарами плевроїдної мембрани.
Вона має два шари, які складають плевроїдну порожнину. Можна побачити тонкий шар рідини між двома шарами плевроїдної мембрани. Це дозволяє їм ковзати з дуже маленьким тертям одна над одною.
Якого кольору можуть бути легені?
Легені звужуються і розширюються при диханні. Колір легень у дітей – рожевий, але в дорослих вони можуть бути сірими, темно-сірими, чи чорними, це може бути через вміст пилу чи диму у лімфатичному просторі.
Що дозволяє процес вдихання і видихання робити крові?
Під час дихання повітря проходить ритмічно в, і з повітряних коридорів легень. Ці два процеси відомі як видихання і вдихання. Цей процес позволяє крові поглинати кисень і виділяти вуглекислий газ і воду.
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