Question

The thoracic chamber is formed dorsally by the ___A___, ventrally by the ___B___, laterally by the ___C___ and on lower side by the dome-shaped ___D___.
Select the right choices for A, B, C and D.

• A. A-vertebral column, B-sternum, C-ribs, D-diaphragm
• B. A-vertebral column, B-ribs, C-sternum, D-diaphragm
• C. A-diaphragm, B-ribs, C-sternum, D-vertebral column
• D. A-ribs, B-diaphragm, C-sternum, D-vertebral column

Answer 1

The correct option is A A-vertebral column, B-sternum, C-ribs, D-diaphragm

Thoracic cavity, also called chest cavity, is enclosed by the ribs laterally, dorsally by the vertebral column, ventrally by the sternum or breastbone, laterally by ribs and is separated from the abdominal cavity on the lower side by a muscular and membranous partition called the diaphragm.

Hence, A-vertebral column, B-sternum, C-ribs, D-diaphragm