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Why are ruptures intervertebral discs more common in lumber vertebrae?
Wiki User
∙ 12y ago
The lumbar vertebrae are carrying the most weight as the whole of the the thorax, head, abdomen, and upper limbs are above them. This extra weight puts more pressure on these disks increasing the risk of rupturing. The reason the IV disks in the sacral region arent at even higher risk rupturing even though they Cary even more weight? They don't exist, evolution has allowed the vertebrea of this region to fuse together.
Wiki User
∙ 12y ago
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How many bones are in the lumber?
The lumbar region of the vertebral column contains 5 vertebrae (the bones of the spine).
Meaning of lumber region?
The lumbar region refers to the lower back. It is the area where the five lumbar vertebrae are located.
How many vertebra fuse to form the sacrum?
You have 7 unfused cervical vertebrae. You have 12 unfused thoracic vertebrae. You have 5 unfused lumber vertebrae. The five vetebrae are fused in case of the sacrum. That is the need of the hour. You can not support the hip bones with out that fusion. Then there are few fused vertebrae in coccyx.
Why are the bodies of the lumbar vertebrae so large?
That is good question! You have the size of the vertebrae getting larger and larger as you go down. The reason for this phenomena is very simple. You have adapted the verticle posture. You have to bear the weight of the body. The cervical vertebrae have to bear the weight of the head only. The lumber vertebrae have to bear the weight of the upper half of the body. so they are largest and strongest.
What part of the vertebral column receives the most stress by bearing most of the weight of the body?
The lumbar vertebrae in the abdoninal region The segment, or group, of vertebrae that bear the most weight in the body is at the lumbosacral joint between lumbar vertebra number five (L5) and the sacrum.
How far down the spinal cord does the spinal cord extend?
second lumber vertebrae
How many curvature does vertebral column have?
You have the convex anteriorly curve of cervical vertebrae. You have the concave anteriorly curve of thoracic vertebrae. Again you have the convex anteriorly curve of lumber vertebrae. The sacrum goes steep backward from the last lumber vertebra. Here no curve is described probably. So you have lardosis of cervical and lumber vertebrae. You have kyphosis of the thoracic vertebrae.
How many lumber vertebrae human body have?
Thirty three
How far does the spinal cord extend down the spinal column?
second lumber vertebrae
Small bones protecting the spinal cord?
There isextension of brain in neck, thorax and abdomen in what is called as vertebral column. You have seven cervical vertebrae, twelve thoracic vertebrae and five lumber vertebrae fallowed by sacrum.In between them, you have inter-vertebral disc and various ligaments. Which keep them in position. In the hollow part of these vertebrae, there is spinal cord. It extends to the lower border of second lumber vertebrae. Down to it, there is bundle of nerves called as cauda-equina.
What are the different vertebrae in the back bone?
You have 7 cervical vertebrae, 12 thoracic vertebrae, 5 lumber vertebrae, 1 sacrum and 1 coccyx. The first cervical vertebra is called as atlas vertebra. The second one is called as axis vertebra.
How many bones are in the lumber?
The lumbar region of the vertebral column contains 5 vertebrae (the bones of the spine).
What is the right lumber region part of?
Lumbar vertebrae are part of the lower spine ; see related link .
Is your vertebrae movable?
Almost all the joints between vertebrae are movable. The joints between the cervical vertebrae and lumber vertebrae have fairly good movement. Between thoracic vertebrae only you have less movement. But then they do move on each other.
Meaning of lumber region?
The lumbar region refers to the lower back. It is the area where the five lumbar vertebrae are located.
Is common yard lumber suitable for rough carpentry?
Yes, common yard lumber is suitable for rough carpentry.
Can a human have 34 vertebrae?
Yes. The human spine is made up of three parts, the cervical spine(neck), the thoracic(middle), and the lumbar (lower back). The lumbar consists of 5 vertebrae in the average adult human, but may also only have 4 or 6 vertebrae depending on the individual, although this is not as common. There can be sacralization of the 5th lower lumbar resulting in only 4 lumber vertebrae, or a vertebrae of the sacrum where the individual has an extra 6th lumbar vertebrae. While all adults have 7 cervical vertebrae there is much more variation in the thoracic and lumbar vertebrae. The thoracic too may have a 13th vertebrae resulting in an extra rib. And as mentioned before the lumbar may have 4-6 vertebrae depending on the individual.
