Sacrum to Coccyx Flashcards
superiorly, it articulate with L5 and inferiorly it connect with the coccyx
Sacrum
is a composition bone formed from the fusion of five vertebrae
Sacrum
is a remnant of the spinous process of the fused vertebrae
median Sacral Crest
continues inside the sacrum as the sacral canal and terminates near the coccyx via an enlarged opening called what?
Sacral Hiatus
is made up of five fused body
body of sacrum
is the prominent upper anterior edge of the sacrum
Sacral Promontory
is a passage that extend from top to bottom of the sacrum
Sacral Canal
are 16 openings 8 front 8 posteriorly which the sacral nerves leave the spinal cord
Sacral Foramina
are those parts of the sacrum lateral to the foramina
Lateral Masses
are wing-like upper parts of the lateral masses on each side that extend laterally from the 1st sacral segment
Ala / Alae / Wing
are 2 processes which extends up from the posterior part of the upper sacrum form with the 5th lumbar body
Superior Articular Process
are two small projections that extend down from the lower sacrum
Cornua / Cornu
extend up from the posterior border
Cornua or Horns
occasionally, there are three to five segment but becomes fuse to form one bone
Coccyx
diminishes in size from its base inferiorly to its apex
Coccyx
the articulation with sacrum it curves inferiorly and anteriorly
Coccyx
the condyles of the occipital bone on each side rests upon the articular facet on the superior surface of the lateral part 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 joint
what are the three joints of the vertebral column
Atlanto-Occipital joint
Atlanto-Epistropheal joint
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
Annulus Fibrusus
is the pulpy center of the annulus fibrusus
Nucleus Polposus
is in cervical area on each side of the intervertebral disc
Accessory Cervical joints
Inter-articular joint / Apophyseal joint
a. inferior articular process of one vertebra
b. superior articular process of vertebra below
Lumbo-Sacral joint
a. inferior surface of the L5
b. superior surface of the sacrum
Sacro-coccygeal joint
a. lower surface of the sacral body
b. upper surface of the first coccygeal segment
