Symptoms of iron-deficiency anemia are related to decreased oxygen delivery to the entire body and may include: 1  Being pale or having yellow sallow skin. 2  Unexplained fatigue or lack of energy. 3  Shortness of breath or chest pain, especially with activity.  Unexplained generalized 1  weakness. Rapid heartbeat.  Pounding or whooshing in the ears.
The thoracic cavity contains the heart, the lungs, and some abdominal organs. The thoracic cage provides attachments for muscles of the neck, thorax, upper limbs, abdomen, and back. The thorax moves up and down to allow breathing, so it is one of the most dynamic regions of the body.
It turns downward and descends to deliver oxygenated blood to the lower portions of the body. The portion of the descending aorta that goes through the thoracic cavity is the THORACIC AORTA. The portion of the descending aorta that travels into the abdominal cavity is the ABDOMINAL AORTA. The Pulmonary Trunk and Its Branches The next largest artery you see in the heart is colored BLUE because it is carrying deoxygenated blood from the right ventricle to the lungs.