Lumbar spine

Question 1

How many vertebrae in the lumbar spine?

Answer 1

5

Question 2

how to tell its lumbar

Answer 2

Large vertebral bodies
kidney-shaped vertebral bodies
They are deeper anteriorly than posteriorly, producing the lumbosacral angle
Triangular vertebral foramen is triangular in shape.
long and slender Transverse processes
Articular processes have nearly vertical facets.
Spinous processes are short and broad.
Accessory processes
Mammillary processes

Question 3

how to tell its L5

Answer 3

large vertebral body

large transverse processes as it carries the weight of the entire upper body.

Question 4

where do spinal nerves exit the vertebral canal?

Answer 4

intervertebral foramina

Question 5

what happens at L1 spinally

Answer 5

spinal cord terminates and the cauda equina begins

Question 6

what is the cauda equina?

Answer 6

bundle of lumbar, sacral and coccygeal nerve roots

Question 7

what is the lumbosacreal angle

Answer 7

(the angle between the long axis of the lumbar region and that of the sacrum).

Question 8

what are accesoory processes and where are they found

Answer 8

They act as sites of attachment for deep back muscles.can be found on the posterior aspect of the base of each transverse process.

Question 9

what are mamillary processes and where are they found

Answer 9

They act as sites of attachment for deep back muscles.

Mammillary processes can be found on the posterior surface of each superior articular process.

Question 10

which ligaments are unique to the lumbar spine?

Answer 10

The lumbosacral joint (between L5 and S1 vertebrae) is strengthened by the iliolumbar ligaments. These are fan-like ligaments radiating from the transverse processes of the L5 vertebra to the ilia of the pelvis

Question 11

The joints of the lumbar vertebrae are supported by several ligaments. They can be divided into two groups, what are these groups?

Answer 11

those present throughout the vertebral column, and those unique to the lumbar spine.