The joint here is a synovial pivot joint allowing for rotation in the transverse plane. THis means its the joint that allows you to turn your head form side to side.
The Atlas is designed to allow a nodding movement, whilst the axis below it has the odontoid peg on it to allow shaking, or rotational movement of the skull.
The atlas and axis bones are found in the neck region of the spine, known as the cervical spine. The atlas bone is the topmost cervical vertebra that holds up the skull, while the axis bone is located just below the atlas and allows for rotational movement of the head.
There is rotation of head around the dens of the axis. Dens is actually derived from the body of the atlas vertebra.
The two most superior vertebrae are CERVICAL vertebrae 1 and 2 (C1 and C2). They are also known as the Atlas (C1) and Axis (C2). These two vertebra join together to form the atlantoaxial joint, which helps with the movement of the neck. A structure on the axis called the dens (odontoid process) fits through a foramen (hole) in the atlas to join them together.
The sternocleidomastoid pair and the splenius capitus pair act to rotate the head around the joint between the axis and the atlas.The sternocleidomastoid pair and the splenius capitus pair act to rotate the head around the joint between the axis and the atlas.
The Atlas is designed to allow a nodding movement, whilst the axis below it has the odontoid peg on it to allow shaking, or rotational movement of the skull.
The atlas and axis bones are found in the neck region of the spine, known as the cervical spine. The atlas bone is the topmost cervical vertebra that holds up the skull, while the axis bone is located just below the atlas and allows for rotational movement of the head.
Cervical vertabrae or axis and atlas
The movement is called rotation, where the head pivots around the axis of the neck to enable movement from side to side. This movement primarily involves the atlas and axis vertebrae at the top of the spine.
Cervical vertabrae or axis and atlas
The atlas and axis are the first two vertebrae in the cervical region of the spinal column. The atlas (C1) sits directly beneath the skull and supports the head, allowing for nodding movements. The axis (C2) is positioned just below the atlas and features a unique peg-like structure called the odontoid process (or dens), which allows for rotational movement of the head. Together, they enable a wide range of motion in the neck.
The top two bones of the vertebrae are called the atlas and the axis. The atlas, or C1, supports the skull and allows for nodding movements, while the axis, or C2, enables rotational movement of the head. These two vertebrae are crucial for the flexibility and range of motion of the neck.
There is rotation of head around the dens of the axis. Dens is actually derived from the body of the atlas vertebra.
The vertebrae in the neck are called cervicle vertebrae. There are 6 of them altogether. The first two (going downward from the skull) are called the atlas and the axis. The rest are just name by their order. Eg: C1 (Atlas), C2 (Axis), C3, C4.....
C1 (Atlas) , and C2 ( Axis ) because they are unlike the rest of the Cervical vertebrae.
The pivot joint in the neck the atlantoaxial joint, and it is at C1 and C2. These bones are also called the atlas and the axis.
Pivot joint formed between the atlas and the axis (first two vertebrae)