The organs that are involved in breathing. These include the nose, throat, larynx, trachea, bronchi, and lungs. Also called respiratory tract. The major organs of the respiratory system function primarily to provide oxygen to body tissues for cellular respiration, remove the waste product carbon dioxide, and help to maintain acid-base balance.…[Read more]

The mouth, or oral cavity, is the first part of the digestive tract. It is adapted to receive food by ingestion, break it into small particles by mastication, and mix it with saliva. The lips, cheeks, and palate form the boundaries. The oral cavity contains the teeth and tongue and receives the secretions from the salivary glands.

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Your digestive system is a group of connected organs that work together to turn the food you eat into nutrients your body needs to function. It includes your mouth, throat, esophagus, stomach, small and large intestines, rectum, and anus. It also includes your biliary system—your gallbladder, liver, and pancreas.

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