Synonyms: crest of the ilium, hip bones. The iliac crest is the upper border of the wing of the ilium, the outer and upper margin of the pelvic girdle. It runs from the anterior superior iliac spine to the posterior superior iliac spine. It has an inner and outer lip. There is an iliac tubercle on the widest point of the iliac crest.
Which layer of the heart would be penetrated during an emergent medical procedure in order to remove fluid? Pericardium Which of the following lists, in the correct order, the return of blood from the systemic circulation to the heart?
The closure of the mitral valve prevents blood from backing into the left atrium and the opening of the aortic valve allows the blood to flow into the aorta and flow throughout the body. Aortic Valve. Aortic Valve: The aortic valve separates the left ventricle from the aorta. As the ventricles contract, it opens to allow the oxygenated blood collected in the left ventricle to flow throughout the body. It closes as the ventricles relax, preventing blood from returning to the heart.