What are the 5 types of vertebrae and how many of each are there?

What are the 5 types of vertebrae and how many of each are there?

These regions are called the cervical spine, thoracic spine, lumbar spine, sacrum, and coccyx. There are seven cervical vertebrae, twelve thoracic vertebrae, and five lumbar vertebrae. The number of vertebrae in a region can vary but overall the number remains the same.

What are the last 5 vertebrae called?

Vertebral Column

Term # of Vertebrae Abbreviation
Thoracic 12 T1 – T12
Lumbar 5 or 6 L1 – L5
Sacrum 5 (fused) S1 – S5
Coccyx 3 None

What are 5 fusion vertebrae?

The sacrum is made of five fused vertebrae configured as an inverted triangular bone that is concave anteriorly and convex posteriorly. Within the sacrum lies the sacral canal, which is a continuation of the vertebral canal.

How many types of vertebrae are there?

The vertebral column is formed of four different types of vertebrae: the cervical vertebrae, the thoracic vertebrae, the lumbar vertebrae, and the sacrococcygeal vertebrae, in order from head to hip.

Where is L5 and S1 in the spine?

The L5-S1 spinal motion segment, also called the lumbosacral joint, is the transition region between the lumbar spine and sacral spine in the lower back. In this region, the curvature of the spine changes from lumbar lordosis (forward curve) to sacral kyphosis (backward curve).

What are the five classes of vertebrae?

In addition to the distrinction between articulating and fused, vertebrae are divided into five different categories. They are: cervical veretebrae, thoracic vertebrae, lumbar vertebrae, sacrum and coccyx. See below for a more detailed description of each category.

What are the 5 types of verterbrae?

Cervical vertebrae. At the base of the skull,the vertebral column starts with the cervical vertebrae.

  • Thoracic Vertebrae. The thoracic vertebrae are the next 12vertebrae,moving down the body.
  • Lumbar Vertebrae. The next five vertebrae are the lumbar vertebrae,and these are the largest of the vertebrae.
  • Sacrum and Coccyx.
  • What are the lower five vertebrae?

    Lumbar vertebrae: the five largest and strongest vertebrae located in the lower back between the chest and hips. The sacrum and coccyx are the bones at the base of the spine. The sacrum is made up of five vertebrae fused together, while the coccyx (tailbone) is formed from four fused vertebrae.

    What are the five vertebrae of the lower back called?

    The lumbar vertebrae consist of five individual cylindrical bones that form the spine in the lower back. These vertebrae carry all of the upper body’s weight while providing flexibility and movement to the trunk region. They also protect the delicate spinal cord and nerves within their vertebral canal.