MEDICAL
THORACIC WALL
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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5
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3
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2
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7
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Detailed explanation-1: -In humans there are normally 12 pairs of ribs. The first seven pairs are attached directly to the sternum by costal cartilages and are called true ribs . The 8th, 9th, and 10th pairs-false ribs-do not join the sternum directly but are connected to the 7th rib by cartilage.
Detailed explanation-2: -Because the last three pairs of ribs, the 8th, 9th, and 10th pairs, do not directly articulate with the sternum, they are referred to as false ribs. They connect the 7th rib’s cartilaginous components.
Detailed explanation-3: -There are three pairs of false ribs. They are intermediate between the true ribs and the floating ribs. They are sometimes called vertebrochondral ribs. They differ from the true ribs because they do not directly articulate with the sternum.
Detailed explanation-4: -The first five ribs are termed true ribs because they attach directly to the sternum through the costal cartilage. The next five ribs are termed false ribs because they attach to the sternum indirectly through the costal cartilage.