Lesson: Respiration: How We Breathe Science
In this lesson, we will learn how to describe respiration in the human body and what happens during inhalation and exhalation.
Look at this model of the lungs. The pink balloon represents the diaphragm and the yellow balloons represent the lungs. The blue tube represents the trachea and bronchi.
What happens to the yellow balloons when the pink balloon is pulled down?
What happens to the air in the lungs when the diaphragm relaxes?
Fill in the blank: Respiration is the process by which we get from the burning of digested food.
Benjamin counted how many breaths he takes in 60 seconds. He took 15. What was Benjamin’s breathing rate?