What does articular facet mean?

What does articular facet mean?

Filters. (anatomy) A surface where two anatomical structures (usually bones) meet. noun. 1.

Where is the articular facet?

One pair faces upward (superior articular facet) and one downward (inferior articular facet). There is one joint on each side (right and left). Facet joints are hinge–like and link vertebrae together. They are located at the back of the spine (posterior).

What is the function of the superior articular facet?

Each vertebra has two sets of facet joints. The superior articular facet faces upward and works like a hinge with the inferior articular facet (below). Like other joints in the body, each facet joint is surrounded by a capsule of connective tissue and produces synovial fluid to nourish and lubricate the joint.

What does the articular facet articulate with?

Superior articular facet (Facies articularis superior) is an oval-shaped, concave structure on the superior aspect of the lateral mass. It articulates with an occipital condyle on the underside skull.

What do articular processes do?

The functional significance of the articular processes is obviously to limit rotation, which can take place in the lumbar segment of the vertebral column during any asymmetrical movement of the body.

What attaches to the articular process?

The articular processes or zygapophyses (Greek ζυγον = “yoke” (because it links two vertebrae) + απο = “away” + φυσις = “process”) of a vertebra are projections of the vertebra that serve the purpose of fitting with an adjacent vertebra. The actual region of contact is called the articular facet.

What are the articular surfaces of the distal radius?

Anatomy. The distal radius is made up of three articular surfaces, beginning laterally with the scaphoid facet and progressing medially to the lunate facet and lastly the sigmoid notch. The ulna articulates with the distal radius at the sigmoid notch. The ulna plays an important part of the ligamentous integrity of the DRUJ and TFCC.

Which is smaller the radius or the radial head?

The “radius” is the smaller of the two bones in your forearm. The radial “head” is the knobby end of the bone, where it meets your elbow. A fracture in this area typically causes pain on the outside of the elbow, swelling, and the inability to turn your forearm.

Where are the facet joints located in the vertebra?

The facet joints are situated between the pedicle and lamina of the same vertebra and form the articular pillars that act to provide structural stability to the vertebral column as a whole.

Where do fractures of the radius of the elbow occur?

Fractures of the radius often occur in the part of the bone near the elbow, called the radial “head.”. Radial head fractures are common injuries, occurring in about 20% of all acute elbow injuries. Many elbow dislocations also involve fractures of the radial head.