Sponge #1 Imagine that you have just been running or exercising strenuously. Please give examples of what happens to your body. How do you feel? Heart?

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Presentation transcript:

Sponge #1 Imagine that you have just been running or exercising strenuously. Please give examples of what happens to your body. How do you feel? Heart? Lungs? Chest?

KEY CONCEPT The respiratory and circulatory systems bring oxygen and nutrients to the cells Respiratory Functions

nose sinus mouth epiglottis trachea lungs The respiratory system is where gas exchange occurs. –What are the gases involved with the respiratory system?

nose sinus mouth epiglottis trachea lungs The respiratory system is where gas exchange occurs. –picks up oxygen from inhaled air –expels carbon dioxide and water What are the waste products of the respiratory system? CO 2 and water vapor

Draw and label the parts of the respiratory system

The respiratory system moves gases into and out of the blood. Only place where gases in the blood are exchanged with gases from the atmosphere

What happens when areas of the body do not get oxygen? What happens when a tourniquet is put on?

The lungs contain the Bronchi: passage of airway into lungs Bronchioles: passage to the air sacs of the lungs Alveoli: absorb oxygen- gas exchange with blood alveolibronchiole Bronchi Or Bronchus alveoli

bronchiole alveoli Bronchi or Bronchus Draw and label the parts of the lungs

Breathing involves the diaphragm and muscles of the rib cage. Air flows from areas of high pressure to low pressure. Air inhaled. Muscles contract and rib cage expands. Diaphragm flattens and moves downward. Air exhaled. Muscles and rib cage relax. Diaphragm relaxes and rises.