Question

In males, ______ play a role in the movement of respiratory system.

• A. Vertebrae
• B. Sternum
• C. Diaphragm
• D. Liver

Answer 1

The correct option is C Diaphragm

The diaphragm is the muscular organ situated between the thoracic cavity and the abdominal cavity. It contracts and moves downwards due to which the volume in the lungs increases and the air is inhaled. When it relaxes, the volume of the lungs decreases and the air is expelled out.

A. The vertebra is the short bone that makes up the vertebral column.

B. The sternum is the breastbone to which the ribs are attached.

C. The diaphragm is the muscular organ that plays role in the movement of the respiratory system.

D. The liver is the largest gland responsible for various metabolic activities.

Hence, the correct answer is 'Diaphragm'.