Q1: Find two thoracic vertebrae that fit together and identify: The three joints between each pair: Single anterior joint called ...................... Paired posterior joints called . Q2: Note on a skeleton the boundaries of the intervertebral foramen. What emerges through here? Q1: Find two thoracic vertebrae that fit together and identify: The three joints between each pair: Single anterior joint called ...................... Paired posterior joints called . Q2: Note on a skeleton the boundaries of the intervertebral foramen. What emerges through here?.