College of Massage Therapists of British Columbia (CMTBC) Practice Exam

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How many ribs are there in a typical human body?

The correct answer is: 24

A typical human body has 24 ribs, arranged in 12 pairs. Each pair of ribs is attached to one of the 12 thoracic vertebrae in the spine. These ribs play a crucial role in protecting vital organs within the thoracic cavity, such as the heart and lungs, and they also assist in the mechanics of breathing by expanding and contracting during respiration. The structure of ribs allows for flexibility and movement, which is necessary for the respiratory process. In summary, the human rib cage consists of 24 ribs total, making the choice of 24 the accurate representation of the quantity of ribs in a typical human body. Understanding this anatomical detail is essential for those studying human anatomy and related medical fields.