What is the term for the joint formed between the inferior articular process of one vertebra and the superior articular process of another?

The joint formed between the inferior articular process of one vertebra and the superior articular process of another is known as the zygapophyseal joint. This specialized joint plays a critical role in the spine's biomechanics, allowing for a certain range of motion while also providing stability and support.

Zygapophyseal joints are synovial joints, meaning they contain a fluid-filled capsule that aids in reducing friction and allowing for smooth movement between the vertebrae. They are important for flexion, extension, rotation, and lateral bending of the spine, and they also help to limit excessive motion that could lead to injury.

In contrast to the zygapophyseal joint, the costovertebral joint connects the ribs to the vertebrae, while the symphyseal joint refers to the intervertebral disc joint, and the angular joint is not a standard term used in vertebral anatomy. Thus, the zygapophyseal joint represents the correct and specific terminology for the joint described in the question.