Answer:
hello your question lacks the required options here are the answer options missing
abdominal-thoracic-dorsal.
abdominal-dorsal-thoracic.
dorsal-thoracic-abdominal.
thoracic-abdominal-dorsal.
thoracic-dorsal-abdominal.
Answer : Abdominal-thoracic-dorsal
Step-by-step explanation:
It was impossible to operate within the body cavities of humans before Doctor William Beaumont performed a successful operation on a gunshot wound sustained in the stomach ( abdominal cavity ), after this surgery there was an increased research and experiments carried out to develop means of operating on chest cavity ( thoracic cavity) i.e carrying out heart operations after which breakthroughs where made in carrying out successful operations in the dorsal cavity ( brain and spinal cords )