Ch 10_ Lumbar Spine, Sacrum, & Coccyx

Ch 10: Lumbar Spine, Sacrum, & Coccyx
Lumbar Vertebrae - CORRECT ANSWER-Largest and strongest vertebrae in the
vertebral column because the load of body weight increases toward the inferior
end of the column.

Transverse Process - CORRECT ANSWER-Extends laterally from the junction of
each pedicle and lamina.

Fairly small in the lumbar vertebrae

Spinous Process - CORRECT ANSWER-Extends posteriorly at the midline of the
2 laminae.

Bulky & blunt in the lumbar vertebrae

Intervertebral Foramina - CORRECT ANSWER-Opening formed by the superior
and inferior vertebral notches

Pedicles - CORRECT ANSWER-Extends posteriorly directly from the vertebral
body on each side

Lamina - CORRECT ANSWER-Extends posteriorly from the transverse
processes, ending at the spinous process

Zygapophyseal Joints - CORRECT ANSWER-Joint formed by the superior and
inferior articular processes.
Seen on oblique views
Upper lumbar vertebrae = 50 degree angle
Lower lumbar vertebrae = 30 degree angle

Pars Interarticularis - CORRECT ANSWER-The portion of each lamina between
the superior and inferior articular processes

Pelvic Sacral Foramina - CORRECT ANSWER-Transmits nerves and blood
vessels.