What body organ does the rib cage protect?

How does the musculoskeletal system function?

Which of the following is a part of the musculoskeletal system

It is the largest organ of the body.

The digestive system breaks down food which serves as a good source of energy needed by our body. Show the path of food in the digestive system. 

The integumentary system is made up of parts that cover and protect the body organs from being damaged.

The heart is the pumping organ of the body that can be found in the middle of the chest cavity.