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Biology Notebook: 07.02 Respiratory and CirculatoryObjectives:Explain how the respiratory and circulatory systems work togetherDescribe the structures and functions of the respiratory systemDescribe the structures and functions of the circulatory systemDifferentiate between systolic and diastolic blood pressureDescribe the effects of lifestyle on the respiratory and circulatory systemsKey Questions and TermsNotesThe Respiratory and Circulatory SystemsHow do the respiratory and circulatory systemswork together?What are the main functions of the respiratory and circulatory systems?Respiratory SystemWhat do all cells require a constant supply of?Describe the functions and locations of the following parts of the respiratory system:Diaphragm PharynxTrachea
regulate the size of the air passageways. • Nose: the tissues inside your lungs are very delicate, is the main function of the nose is to filter, moisten, and warm the air as it enters therespiratory system. Hairs lining the entrance of the nasal cavity trap large particles, while the incoming air is warmed in the inner nasal cavity and sinuses. Mucus, the slimy substancesecreted by mucus membranes, produced in these areas moistens the air while trapping smaller dust particles. • Pharynx: air moves from the nose into a cavity at the back of the mouth called the pharynx, or throat, which serves as a passageway for both air and food. Food and liquid leave the pharynx and enter the esophagus, while air travels into the trachea.