<prompt> Which of this pa of veebral canal will show secondary curves with concavity backward?CervicalThoracicSacralCoccyx  <response>: In veebrates, cervical veebrae singular: veebra are the veebrae of the neck, immediately below the skull. Thoracic veebrae in all mammalian species are those veebrae that also carry a pair of ribs, and lie caudal to the cervical veebrae. 