Lecture 4 - Lumbar spine

Question 1

Features of a lumbar vertebrae

Answer 1

Kidney shaped vertebral body

Question 2

7 processes

Answer 2

2 transverse processes
2 superior articular processes
2 inferior articular processes
1 Spinal process

Question 3

What does the vertebral body consist of?

Answer 3

10% cortical bone

90% cancellous bone

Question 4

Adaptations of the vertebral body?

Answer 4

90% cancellous - lightweight

Allows bone marrow to be stored for haematopoiesis

Question 5

Vertebral end plates

Answer 5

Superior and inferior articular surfaces

Covered in hyaline cartilage

Question 6

Function of vertebral body

Answer 6

2/3rd of load-bearing

Stores bone marrow for haematopoiesis

Question 7

Movements permitted by the lumbar vertebrae

Answer 7

Flexion and extension

Limited lateral flexion and rotation