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Question: Where is the atlas and axis located?

The atlas and axis vertebrae are the two most superior bones in the vertebral column, and they are part of the seven cervical vertebrae. The atlas is the top-most bone, sitting just below the skull; it is followed by the axis. Together, they support the skull, facilitate neck movement, and protect the spinal cord.

Where is the atlas located in your body?

The atlas is the first cervical vertebra (C1) and the topmost vertebra of your spine. It is also the principal component of your so-called head joints.

What vertebral region is the atlas and axis located?

Cervical Vertebrae ( C1 – C7 ) The cervical spine is further divided into two parts; the upper cervical region (C1 and C2), and the lower cervical region (C3 through C7). C1 is termed the Atlas and C2 the Axis. The Occiput (CO), also known as the Occipital Bone, is a flat bone that forms the back of the head.

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What is atlas and axis?

The atlas is the first cervical (neck) vertebra which is just under the head; it is named for Atlas, the Greek god who supported the world on his shoulders. The axis is the second cervical vertebra; it has what is called the odontoid process about which the atlas rotates. It allows the head turn from side to side.

Where are the atlas C1 and axis C2 located?

The C1 and C2 vertebrae are the first two vertebrae at the top of the cervical spine. Together they form the atlantoaxial joint, which is a pivot joint. The C1 sits atop and rotates around C2 below. More of the head’s rotational range of motion comes from C1-C2 than any other cervical joint.

What is a person’s atlas?

The atlas is the top-most bone, sitting just below the skull; it is followed by the axis. Together, they support the skull, facilitate neck movement, and protect the spinal cord.

How do you adjust atlas?

To adjust your atlas, we use an Atlas Orthogonal Precision Adjusting Instrument. This instrument may sound intimidating, but it’s actually completely painless – literally, you won’t feel a thing. You simply lie on your side and the doctor places the tip of the instrument just below your earlobe.

Where is the axis bone located?

In anatomy, the axis (from Latin axis, “axle”) or epistropheus, is the second cervical vertebra (C2) of the spine, immediately posterior to the atlas, upon which the head rests. The axis’ defining feature is its strong odontoid process (bony protrusion) known as the dens, which rises dorsally from the rest of the bone.

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Is the atlas part of the axial skeleton?

The axial skeleton consists of four types of vertebrae (Figure 5.4). Most anteriorly is a single cervical vertebra, the atlas, that articulates with the occipital condyles of the skull.

What is the thoracic region?

The thoracic spine is the longest region of the spine, and by some measures it is also the most complex. Connecting with the cervical spine above and the lumbar spine below, the thoracic spine runs from the base of the neck down to the abdomen. It is the only spinal region attached to the rib cage.

How is atlas different from axis?

The key difference between atlas and axis vertebrae is that the atlas vertebra is the topmost vertebra which holds the skull while axis vertebra is the second topmost vertebra which provides an axis to rotate the skull and atlas vertebra when the head moves side to side.

What is the axis bone?

The Axis ( C2 vertebra ) also known as epistropheus forms the pivot upon which the first cervical vertebra (the Atlas), which carries the head, rotates. The axis is composed of a vertebral body, heavy pedicles, laminae, and transverse processes, which serve as attachment points for muscles.

How can you tell the difference between atlas and axis?

The main difference between atlas and axis vertebrae is that atlas is the first cervical vertebra, which supports the skull whereas axis is the second cervical vertebra, which forms the pivot upon the atlas. Furthermore, atlas help to hold the head upright while axis allows the head to turn side to side.

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Where is your C2 located?

Bones of the spine are called vertebrae. The bone involved in hangman’s fracture is the second vertebra, toward the top of the neck, close to the skull. It is designated as C2: “C” for its location in the cervical spine (spine in the neck), and “2” for its position as the second bone in that spinal segment.

Where is the atlas in your neck?

Atlas: the uppermost vertebra in the neck; also called C1. This 2 oz. bone surrounds the brain stem and supports the 12-16 pound skull. It is the only freely movable bone in the spine, which means it can misalign with very little force.

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