Question

Thoracic chamber is formed $(A)$ by the vertebral column, $(B)$ by the sternum, $(C)$by the ribs and on the $(D)$ side by the dome shaped diaphragm. Identify $A,B,C$ and $D$.

• A. A - dorsally, B - ventrally, C - laterally, D - lower
• B. A - ventrally, B - laterally, C - dorsally, D - upper
• C. A - laterally, B - ventrally, C - dorsally, D - lower
• D. A - dorsally, B - laterally, C - ventrally, D - upper

Answer 1

Answer: (A)

Thoracic chamber is formed dorsally by the vertebral column, ventrally by the sternum, laterally by the ribs and on the lower side by the dome shaped diaphragm. Thoracic cavity, also called chest cavity, is the second largest hollow space of the body. It is enclosed by the ribs, the vertebral column, and the sternum, or breastbone, and is separated from the abdominal cavity (the body's largest hollow space) by a muscular and membranous partition, the diaphragm.