Back & Vertebral Column Flashcards
How do vertebral sizes diffeR?
The size of vertebrae increase from superior to inferior
How many bones are there in the spinal column?
33
How do vertebrae diffeR?
In size & shape
What are the 4 major functions of the spinal column?
- Movement
- Weight bearing
- Protection
- Site of muscle attachments.
How does the spine provide shock absorbtion?
The curves of the spine along with intervertebral discs provide the shock absorbtion
Other than shock absorption how does the vertebral column bear weight?
It transmits weight from the upper body to lower limbs
Which section of the vertebrae are curved inward?
The cervical &lumbar sections curve inward
What sections of the vertebrae are curved outward?
The thoracic & sacral sections curve outward
What are inward curves of the spie called?
Lordoses
Cervical Lordosis
Lumbar Lordosis
What are outward curves of the spine called?
Kyphoses
Thoracic Kyphosis
Sacral Kyphosis
What kind of abnormal spinal curvature does osteoporosis cause?
Osteoporosis causes excessive thoracic kyphosis
What kind of abnormal spinal curvature can pregnancy cause?
Excessive Lumbar lordosis can be caused by pregnancy
What is scoliosis?
Abnormal curving of the spinal in the coronal plane instead of saggital
What makes up the intervertebral disc?
The central nucleus pulposus
The surrounding layers of annulus fibrosus
What is the nucleus pulposus
The central core of the intervertebral disc, has a high h2o content
What is the Anulus Fibrosus?
Layers of FibroCartilage surrounding the nucleus pulposus