Lumber and Sacroiliac region

Question 1

4 main functions of vertebral column

Answer 1

-protection, support (carries wight of pelvis), axis (forms central axis)
Movement

Question 2

3 parts of spine (top tp bottom)

Answer 2

-cervical (curves inward)
-thoracic (curves outward)
-lumbar (curves inward)

Question 3

role of vertebral body

Answer 3

forms anterior part of each vertebrae, lined with hyaline cartilage

Question 4

role of vertebral arch

Answer 4

forms lateral and posterior aspect of each vertebrae
-forms an enclosed hole called vertebral foramen which line up to form vertebral canal, which encloses the spinal cord

Question 5

top to bottom of vertebral body

Answer 5

-spinous processes at centre posterior
-lamina, connect transverse and spinous processes
-superior articular processes, forms joints
-pedicles, connect vertebral body to the transverse processes
-transverse processes (each has 2) lateral

Question 6

role of vertebral discs

Answer 6

-shock absorbers positioned between each bony vertebrae, hold vertebrae together

Question 7

classifying lumbar vertebrae

Answer 7

-kidney shaped vertebral bodies, no transverse foramina, costal facets or bifid spinous processes

Question 8

lumbar spine movements 3

Answer 8

lateral flexion, flexion/extension, rotation

Question 9

classifying sacrum and coccyx

Answer 9

-sacrum described as an inverted triangle with a collection of 5 fused vertebrae
-coccyx articulates with the apex of sacrum
-lack of vertebral arches=no vertebral canal

Question 10

3 main sacroiliac ligaments

Answer 10

-anterior sacro-iliac ligament, runs anteriorly and inferiorly to the joint
-interosseous sacro-iliac ligament, largest and strongest, sits posterosuperior to joint and attaches to rough areas of ilium and sacrum
-posterior sacro-iliac ligament, covers interosseous sacro-iliac ligament

Question 11

lumbosacral joints supported by

Answer 11

-supported by strong iliolumbar and iliosacral ligaments