Superior articular process of the sacrum

Definition

The superior articular process of the sacrum is a paired anatomical structure located at the top part of the sacrum, which articulates (forms a joint) with the inferior articular processes of the lumbar vertebra above it. It plays a critical role in connecting the spine to the pelvis and contributes to the flexibility and movement of the lower back.

Related terms

Sacrum:

The triangular bone at the base of the spine, made up of five fused vertebrae, forming part of the pelvis.

Lumbar Vertebrae:

The five vertebrae situated between the thoracic vertebrae and sacral region, making up part of the lower back.

Articulation:

A joint or juncture between bones or cartilages in the skeleton that permits movement or flexibility in bodily parts