COCCYX Flashcards
diminishes in size from its base inferiorly to its apex. From its articulation with the Sacrum, it curves inferiorly and anteriorly.
This includes four incompletely developed vertebrae. Occasionally, there are three to five segments but become fuse to form one bone.
COCCYX
– extend up from the posterior border.
Cornua (Horns)
– the condyles of the occipital bone on each side rests upon the articular facet on the superior surface of the lateral part of C1.
Atlanto-Occipital joint
– is between the anterior surface of the Odontoid process of C2 and the anterior arch of the atlas.
Atlanto-Epistropheal joint
– lie between the bodies of adjacent vertebra that form cushion.
Intervertebral joints
– a layer of cartilage covers the upper and lower surface of each vertebral body.
Articular Cartilages
– a layer of fibrous tissue and cartilage forms a pad between the articular cartilages on the adjacent vertebra.
Annulus Fibrosus
– is the pulpy center of the
Annulus fibrosus.
Nucleus Polposus
These 3 helps to form the intervertebral joint;
Articular cartilages
Annulus Fibrusus
Nuclea Polposus
– is in the cervical area on
each side of the intervertebral disc between the lateral margins of the adjacent bodies
Accessory Cervical joints
a. Inferior articular process of one vertebra
b. Superior articular process of vertebra
below
Inter-articular joint / Apophyseal joint
a. Inferior surface of the L5
b. Superior surface of the sacrum
Lumbo-Sacral joint
a. Lower surface of the sacral body
b. Upper surface of the first coccygeal
segment.
Sacro-coccygeal joint
