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7 Cards in this Set

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  • Back
  • 3rd side (hint)
What is the large, dome-shaped muscle that powers lung expansion during breathing, forms the floor of the thoracic cavity and roof of the abdominopelvic cavity?
What is termed for the organs inside the ventral body cavity?
What is the superior portion of the ventral body cavity - i.e. the chest cavity.
Thoracic Cavity.
This cavity is encircled by the ribs, the muscles of the chest, the sternum and the thoracic portion of the vertebral column.
What three smaller cavities exist within the thoracic cavity?
1. Pericardial cavity - a fluid-filled space that surrounds the heart.
2. Two pleural cavities - each surrounding one lung and contains a small amount of fluid.
What is the central portion of the thoracic cavity?
Where is the mediastinum locared and what structures does it consist of?
It is located between the pleural cavities and extends from the sternum to the vertebral column, and from the neck to the diaphragm. The structures in the mediastinum are the heart, esophagus, trachea, thymus and several large blood vessels.
What is the inferior portion of the ventral body cavity? What portions divide it?
Abdominopelvic cavity (diaphragm to groin); it is divided by the superior portion (abdominal cavity) and the inferior portion (pelvic cavity).