ARTICLES

Humans need a respiratory system because it is made up of organs that allow them to breathe. Breathing delivers oxygen to the body and takes away carbon dioxide. Every cell in the body needs oxygen to obtain energy from ...

www.reference.com/article/need-respiratory-system-5a74dfd91946a985

The human respiratory system consists of the nasal cavity, pharynx, trachea, various divisions of the bronchi and two lungs. Air flows through the nose or the mouth into the pharynx, through the trachea, down the right a...

www.reference.com/article/body-parts-form-human-respiratory-system-4915dc25d4672a78

A dolphin's respiratory system works like most other mammals, with a few modifications that allow the animal to live in the water. Dolphins breathe using a single blowhole located at the top of their heads. A muscular fl...

www.reference.com/article/dolphin-s-respiratory-system-work-f06872e59d4b861b

SIMILAR ARTICLES

In the respiratory system, gas exchange occurs between the alveoli in the lungs and the capillaries. Alveoli are small cavities lined with thin membranes. The cavities expand and contract as a person breathes. Humans hav...

www.reference.com/article/gas-exchange-occur-respiratory-system-8d6f6e658e042cb2

Human ventilation is also carried out by the respiratory system. It is used to breathe in oxygen for natural processes and then expel gaseous wastes, such as moisture, carbon dioxide and trace amounts of other gases. Thi...

www.reference.com/article/human-ventilation-1bb0609facbf8136

The musculoskeletal system is an internal system that functions primarily to protect vital organs while providing motion and overall support for the body. It is made up of bones, muscles, cartilage, ligaments and tendons...

www.reference.com/article/musculoskeletal-system-160612a9360bbbb9

Mucus is produced by the specialized membranes that line the organs of the body cavities that open to the exterior, such as those found in the respiratory, digestive and reproductive systems. Although mucus is a secretio...

www.reference.com/article/organs-human-body-produce-mucus-44185386d9416b05