Singapore Singapore is no# 10 on the list with an average internet speed of 30.7 megabits per second. It made it on the list of the top ten with a peak speed that is almost double the global average of 15.9 megabits per second.
Structure [edit]. The diaphragm is a dome-shaped structure of muscle and fibrous tissue that separates the thoracic cavity from the abdomen. The dome curves upwards. The superior surface of the dome forms the floor of the thoracic cavity, and the inferior surface the roof of the abdominal cavity. As a dome, the diaphragm has peripheral attachments to structures that make up the abdominal and chest walls.
Answers. Best Answer: The abdominopelvic and thoracic cavities are subdivisions of the ventral body cavity. The cranial and spinal cavities are parts of the dorsal body cavity. The cranial body cavity is totally surrounded by bone ...he abdominopelvic and thoracic cavities are subdivisions of the __(1)__ body cavity; the cranial and spinal cavities are parts of the __(2)__ body cavity. The __(3)__ body cavity is totally surrounded by bone and provides very good protection to the structures it contains. Add your answer. Source.