Medically reviewed by Sanja Jelic, MD The diaphragm is a dome-shaped muscle that separates the chest from the abdomen. This ...

Medically reviewed by Jordana Haber Hazan, MD The abdominal aorta is a large artery in your belly that carries blood from the ...

The image above ― an arterial pressure waveform tracing ... there is a net decrease in intrathoracic pressures as the thoracic cavity volume expands; this allows blood to easily flow into ...