Why are the last two ribs called floating ribs

Asked by admin @ in Biology viewed by 260 People

The last two pairs of ribs are named floating ribs

because
(a) Their sternal parts are attached to the sternum
directly
(b) Their sternal parts are attached on the 7 th
pair of ribs
(c) Their sternal parts remain free and do not
even reach the sternum
(d) They float in the body cavity

Answered by admin @


Answer:

The phrase floating rib or vertebral rib (Latin: costae fluctuantes) refers to the two lowermost, the eleventh and twelfth rib pairs; so-called because they are attached only to the vertebrae–and not to the sternum or cartilage of the sternum.


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