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Lungs
...  breathe. The air you breathe goes into the trachea and travels down to the vocal cords in the larynx up to the bronchi. From the bronchi, the air then passes through each lung until it reaches the Alveoli. The oxygen concentration in each air sac is high; this causes the oxygen to pass across the alveolar membrane into the pulmonary capillary. The oxygen then binds to the haemoglobin at the  ...

Alveoli
...  Alveoli or the air sacs are the terminal parts of the respiratory system. It is the site of actual gas exchange known as internal respiration. The human body has approximately 300 million alveolus. Each of them performs specifically to allow the oxygen to enter your body and the carbon dioxide to exit. Whenever you inhale, the diameter of the individual alveolus increases to accommodate the  ...

Mammary Glands
...  glands are found in a female body that has achieved sexual maturity. They are sweat glands that are composed of mammary Alveoli and the necessary ducts. Though most people think that the mammary glands are part of the reproductive system, they are not. They are actually a part of the integumentary system. But, they are linked to the reproductive system because they help the body in  ...


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