Readers ask: What Is Vertebrae Anatomy?

What does vertebrae mean in anatomy?

Vertebrae are the 33 individual, interlocking bones that form the spinal column. Vertebrae are interconnected by facet joints that allow mobility in the spine. Intervertebral discs separate the individual bones providing additional weight-bearing support.

What is the vertebrae function?

The vertebrae protect and support the spinal cord. They also bear the majority of the weight put upon your spine. The body of each vertebra is the large, round portion of bone. The body of each vertebra is attached to a bony ring.

Where is the vertebrae?

The dorsal vertebrae range from the bottom of the neck to the top of the pelvis. Dorsal vertebrae attached to the ribs are called thoracic vertebrae, while those without ribs are called lumbar vertebrae.

What are the 3 main parts of a vertebra?

Cervical, Thoracic and Lumbar Spine Each vertebra is made up of the vertebral body in the front, the facet joints in the back and the pedicles, which connect the vertebral body to the facet joints.

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What does vertebra mean?

Medical Definition of vertebra: any of the bony or cartilaginous segments that make up the spinal column and that have a short more or less cylindrical body whose ends articulate by pads of elastic or cartilaginous tissue with those of adjacent vertebrae and a bony arch that encloses the spinal cord.

Are humans vertebrates?

Like all of these animals, we are deuterostomes – meaning that during embryo development, our anus forms before our mouth. In other words, we are vertebrates, which are a form of chordate, which are themselves a form of deuterostome.

What separates the vertebrae in life?

Intervertebral Disc. The bodies of adjacent vertebrae are separated and united by an intervertebral disc, which provides padding and allows for movements between adjacent vertebrae. The disc consists of a fibrous outer layer called the anulus fibrosus and a gel-like center called the nucleus pulposus.

What body parts are in your back?

The back supports the weight of the body, allowing for flexible movement while protecting vital organs and nerve structures.

  • Cervical intervertebral discs. Intervertebral disc of axis c2 vertebra.
  • Thoracic intervertebral discs.
  • Lumbar intervertebral discs.

What are the different types of vertebrae?

The spine is split into five regions: the cervical, thoracic, lumbar, sacral, and coccyx. The vertebrae of the sacrum and coccyx are fused, but those of the cervical, thoracic, and lumber regions are free to articulate.

Why is the lumbar vertebrae the largest?

There are 5 lumbar vertebrae (denoted as L1-L5) found in adult humans, and they are situated beneath the thoracic vertebrae, They are the largest, in terms of size, out of all the vertebrae because the lumbar vertebrae must be able to support the weight of the body when a person is standing due to the effects of

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How many vertebrae do you have?

The average person is born with 33 individual bones (the vertebrae ) that interact and connect with each other through flexible joints called facets. By the time a person becomes an adult most have only 24 vertebrae because some vertebrae at the bottom end of the spine fuse together during normal growth and development.

What part of the spine controls the legs?

The lumbosacral spinal cord and nerve supply legs, pelvis, and bowel and bladder. Sensations from the feet, legs, pelvis, and lower abdomen are transmitted through the lumbosacral nerves and spinal cord to higher segments and eventually the brain.

What part of the spine controls the heart?

Thoracic (mid back) – the main function of the thoracic spine is to hold the rib cage and protect the heart and lungs. The twelve thoracic vertebrae are numbered T1 to T12. The range of motion in the thoracic spine is limited. Lumbar (low back) – the main function of the lumbar spine is to bear the weight of the body.

What absorbs shock in the spine?

The intervertebral discs are soft structures which act as shock absorbers between each of the vertebrae (bones) in the spine. A single disc sits between each vertebra.

Which vertebrae are at waist level?

Found along the body’s midline in the lumbar (lower back) region, the lumbar vertebrae make up the region of the spine inferior to the thoracic vertebrae in the thorax and superior to the sacrum and coccyx in the pelvis.

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