7-02 Guided Notes .rtf - Biology Notebook 07.02 Respiratory...

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Biology Notebook: 07.02 Respiratory and Circulatory Objectives: Explain how the respiratory and circulatory systems work together Describe the structures and functions of the respiratory system Describe the structures and functions of the circulatory system Differentiate between systolic and diastolic blood pressure Describe the effects of lifestyle on the respiratory and circulatory systems Key Questions and Terms Notes The Respiratory and Circulatory Systems How do the respiratory and circulatory systemswork together? What are the main functions of the respiratory and circulatory systems? Respiratory System What do all cells require a constant supply of? Describe the functions and locations of the following parts of the respiratory system: Diaphragm Pharynx Trachea
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 the respiratory 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 substance secreted 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.

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