Question

Which of these processes occurs when u inhale? A) the diaphragm expands And thoracic volume decreases. B) the diaphragm contracts and thoracic volume decreases. C) the diaphragm expands and thoracic volume increases. D) the diaphragm contracts and thoracic volume increases.

Answer 1

the answer is D

Step-by-step explanation:

diaphragm contracts and moves downward. This increases the space in your chest cavity, and your lungs expand into it. The muscles between your ribs also help enlarge the chest cavity. They contract to pull your rib cage both upward and outward when you inhale.