Question

Personal Fitness For Connections Academy! PLEASE HELP! Will Fan & Give Medal!!!

Answer 1

2. The ___________ is a strong wall of muscle that contracts to create a suction in the chest to draw in air and expand the lungs. When the muscle relaxes, the chest cavity decreases and the air is pushed out.

Answer 2

@.Sam.

Answer 3

@Opcode

Answer 4

diaphragm which is situatedbelow lungs is primary.....also some accessory muscleshelp like sternocleidomastoid...etc

Answer 5

2. The diaphragm is a strong wall of muscle that contracts to create a suction in the chest to draw in air and expand the lungs. When the muscle relaxes, the chest cavity decreases and the air is pushed out.

Answer 6

The "diaphragm."

Answer 7

diaphram!