Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions


As you pull down the balloon at the bottom of the model , the two small balloons inflate.That means when we inhale the diaphragm contracts and the lungs will have a greater volume and the pressure will be  lesser .
87 4 87
The 2 small balloons will be inflated
15 3 15
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts