There are 12 thoracic vertebrae in the thoracic region. There are 5 lumbar vertebrae in the lumbar region. There are 5 sacral vertebrae, which are fused as one bone and known as the sacrum, in the ...
From top to bottom, these are: The cervical spine (the neck) – the first seven vertabrae located just below the skull The thoracic spine – the 12 vertabrae of the upper back The lumbar spine – the ...
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