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 pericardium is the membrane that surrounds and protects the heart. It is composed of two layers separated by a narrow cavity. The inner layer is firmly attached to the heart wall and is known as the visceral layer or epicardium. The outer layer is composed of relatively inelastic connective tissue and is termed the parietal layer. This fibrous layer prevents distension of the heart, thus preventing excessive stretching of the heart muscle fibres.