ACTIVITY 7
a. Thoracic cavity- ribs, the muscles of the chest, the sternum (breastbone),the thoracic portion of the vertebral column, pleural cavity, parietal pericardium, visceral pericardium, and the mediastinum
b. Cranial cavity- cranial bones and brain, spinal canal ( vertebral column, spinal cord, and the beginnings of spinal nerves).
c. Abdominal cavity- stomach, spleen, liver, gallbladder, small intestine, and most of the large intestine.
d. Pelvic Cavity- urinary bladder, portions of the large intestine, and internal organs of the reproductive system.
e. Mediastinum-heart, esophagus, trachea, thymus, and several large blood vessels that enter and exit the heart.