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The lumbar vertebrae in the lower back is typically five in number and unfused.

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12y ago
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4mo ago

The sacrum is a bone at the base of the spine comprised of five fused vertebrae. It forms the back of the pelvis and connects the spine to the hip bones.

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Q: What vertebrae has five components and is unfused?
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What has seven components that is unfused?

The spine is composed of seven unfused vertebrae in the neck region known as the cervical spine.


What are twelve components unfused called?

They are called vertebrae.


What is the largest and unfused vertebrae?

The largest unfused vertebrae is your Lumbar, located in your lower back.


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.


Seven components unfused?

cervical vertebra


How many spinal vertebra does a human have?

There are 33 vertebrae in the spinal cord of a human being. They are broadly categorized into 5 areas. They are called the cervical, thoracic, lumbar, sacrum & coccyx vertebra. The upper 3 areas have a total of 24 vertebrae, which includes 7 cervical vertebrae, 12 thoracic vertebrae & 5 lumbar vertebrae. Sometimes the lumbar region, may have an additional vertebra, it does happen - but it is rare. 5 vertebrae are fused together to form the sacrum & 3 vertebrae form the end of the spinal column which is the coccyx.


How namy lumbar vertebrae does a human have?

Five lumbar vertebrae.


How many lumbar vertebrae are there?

Five. Usually there are five lumbar vertebrae, but some people are born with six.


What are the five categories of vertebrae in your vertebral column?

The five categories of vertebrae in the vertebral column are cervical (7 vertebrae in the neck), thoracic (12 vertebrae in the chest region), lumbar (5 vertebrae in the lower back), sacral (5 fused vertebrae forming the sacrum), and coccygeal (4 fused vertebrae forming the coccyx or tailbone).


How many movable vertebrae in the spine?

There are 24 movable vertebrae in the spine--7 cervical vertebrae in the neck, 12 thoracic vertebrae in the mid-back, and 5 lumbar vertebrae in the lower back.


What's Spina bifida?

Spina bifida means that one has a split spine. It is a developmental congenital disorder where some vertebrae overlying the spinal cord are not fully formed and remain unfused and open.


How many vertebrae in lumbar spine?

There are typically five lumbar vertebrae.