Question: What is the function of the atlas?

The atlas and axis are specialized to allow a greater range of motion than normal vertebrae. They are responsible for the nodding and rotation movements of the head. The atlanto-occipital joint allows the head to nod up and down on the vertebral column.

What is the function of atlas and axis?

The atlas and axis support the head on the lower cervical spine while providing for considerable mobility in flexion, extension, rotation and lateral bending. The first two vertebrae also function as conduits for the cervical cord and vertebral arteries.

What is the function of axis?

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.

What is the atlas responsible for?

The atlas is ring-shaped and has the important task of supporting the head. Its also responsible for facilitating movement in head and neck. When you nod your head “yes,” thats the atlas at work. It serves as a pivot, and it allows your head to move forward and backward.

What is the difference between axis and atlas?

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.

What features of the atlas and axis are unique?

The atlas and axis have additional features that mark them apart from the other cervical vertebrae. The atlas is the first cervical vertebra and articulates with the occiput of the head and the axis (C2). It differs from the other cervical vertebrae in that it has no vertebral body and no spinous process.

What is special about C1 and C2?

The C1 and C2 vertebrae are uniquely shaped and have vertebral foramen (spaces within the bone) which allow the vertebral arteries and veins to reach through to the brain and supply it with blood. This unique formation is only seen in the cervical vertebrae.

What is special about the atlas and axis?

The atlas and axis are specialized to allow a greater range of motion than normal vertebrae. They are responsible for the nodding and rotation movements of the head. The atlanto-occipital joint allows the head to nod up and down on the vertebral column.

What movement does the atlas and axis allow?

The atlas and axis in particular work with the ligaments to move the neck. The atlas and the occipital bone form the atlanto-occipital joint, which allows neck flexion. When you nod your head as if to say yes, that is neck flexion. The atlas and axis form the atlanto-axial joint, which allows head rotation.

What are the characteristics of atlas vertebra?

The atlas is the first cervical vertebra and articulates with the occiput of the head and the axis (C2). It differs from the other cervical vertebrae in that it has no vertebral body and no spinous process. Instead, the atlas has lateral masses which are connected by an anterior and posterior arch.

What makes the atlas unique?

The atlas is the thinnest and most delicate of the cervical vertebrae, consisting of a thin ring of bone with a few small projections. Unlike most vertebrae, there is no body or centrum on the anterior end of the atlas.

How do you keep atlas aligned?

There are some things that you can do to help your alignment hold. My first suggestion is to watch how you hold your head. You should avoid holding your head tilted to the opposite side I adjust you on. I am moving the atlas down on the side that is high.

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