atlanto-occipital joint Flashcards
describe atlanto occipital joint
One of the craniovertebral joint
Synovial joints
Allow wider range of motion
Atlas C1 vertebrae
Point of contact - concave articular surface from C1 make contact with convex occipital condyles of skull on each Side of foramen magnum
Movements - for nodding, small amount of lateral flexion and rotation
Joints - function; prevent excessive movement of Atlanto-occciptal joints
- anterior Atlanta occipital membrane, broad and continuous w/ ant. Longitudinal ligament
- made of strong fibres that extend from ant. Arch of atlas to ant. Margin of foramen magnum
- posterior Atlanta occipital membrane, continuous with ligament flavour broad but thin and weak
- from upper border of post. Arch of atlas to post. Margin of foramen magnum
what type of joint is the atlanto-occipital joint
synovial joint
atlanto-occipital joint is a constituent of what other joint
craniovertebral joint
bones of the atlanto-occipital joint
atlantas - C1 vertebrae and skull cranium
point of contact of C1 vertebra and skull
concave articular surface from C1 make contact with convex occipital condyles of skull on each Side of foramen magnum
movements of the atlanto-occipital joint
for nodding, small amount of lateral flexion and rotation
joints of the atlanto-occipital joint
Joints - function; prevent excessive movement of Atlanto-occciptal joints
- anterior Atlanta occipital membrane, broad and continuous w/ ant. Longitudinal ligament
- made of strong fibres that extend from ant. Arch of atlas to ant. Margin of foramen magnum
- posterior Atlanta occipital membrane, continuous with ligament flavour broad but thin and weak
- from upper border of post. Arch of atlas to post. Margin of foramen magnum