A member asked:

How many ribs does a human have?

3 doctors weighed in across 2 answers
Dr. Lynne Weixel answered

Specializes in Clinical Psychology

12 pair - both sexes: Both male & female babies are born with 12 pair of ribs.

Answered 8/27/2013

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Dr. Gerald Mandell answered

Specializes in Nuclear Medicine

Usually 12 pairs: Most people have twelve pairs of ribs. Some people only have 11 pairs. Higher frequency of abnormal numbers of ribs sometime include congenital syndromes such as Down syndrome (11 pairs), other chromosomal abnormalities (13 pairs) , esophageal atresia (failure of esophagus to develop normally (13 pairs).And congenital vertebral anomalies and scoliosis where different amount of ribs on each side.

Answered 10/20/2016

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