Circulation and Respiration. How Does the Heart and Lungs Work Together?. ENGAGE. Engage 1:
How Does the Heart and Lungs Work Together?
Obtain a pluck from Owen’s Sausage or local butcher. Demonstrate how air goes in and out of their lungs. The lungs are very elastic and will expand greatly. Allow the students to look at the heart, lungs and trachea.
Construct a Lung Model
Have students work together in groups to construct a lung model
In this investigation, you will determine the tidal volume and vital capacity of your lungs.
Pair of Lungs
Series of passageways
Diaphragm (thin sheet of smooth muscle)
Involves all mechanisms that get O2 to the cells via the bloodstream
Gets rid of the waste gas CO2
Formation of ATP for energy
Air enters nose or mouth
Moves past epiglottis
Passes through larynx
Lungs and their passageways
I bring in the oxygen that is carried on the red blood cells…without me you’d have no oxygen to carry!
I carry the CO2 (waste gas) out of the body.
The circulatory system needs me for gas exchange.
The muscles need oxygen to move.
The brain needsmy oxygen to think.
Andrea knows that her breathing rate increases when she starts to run or exercise. She thinks it is because she needs to increase her oxygen intake. Does increased activity have an affect on the amount of carbon dioxide she exhales? Design an experiment that will answer her question.
Color your Lungs
Upon completion of the human lung model the student will explain the mechanism of breathing through the use of their model, they will name the gases the primary gases that compose air, and they will name the gases we exhale. A grade of pass or fail will be given.
After creating the respiration model the student will list six components of respiration: Nose, trachea, bronchi, bronchioles, alveoli, and lung.