State whether muscles relax or contract as a person is breathing in or out.When breathing...INOUTThe diaphragm and intercostal muscles...

When the diaphragm and external intercostal muscles relax:

When the diaphragm and external intercostal muscles relax:Question 37Answera.The pressure inside the lungs (intrapulmonary/alveolar pressure) decreasesb.Inspiration occursc.The volume of the chest cavity decreasesd.The pressure inside the lungs (intrapulmonary/alveolar pressure) does not changee.The volume of the lungs does not change

Which muscle contracts during inhalation?External inter costal muscleRadial muscle of diaphragmBoth 1 and 2Internal inter costal muscle

What muscles, along with your diaphragm function in expanding the volume of your thoracic cavity when breathing in ?pectoralis musclesinternal intercostal musclesexternal intercostal musclesgluteal muscles

Determine what happens when the diaphragm relaxes.Hint: Select three options.The lungs shrinkThe lungs expandAir pressure in the lungs increasesAir pressure in the lungs decreasesAir is drawn into the lungs (inhalation)Air is forced out of the lungs (exhalation)