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The atlas articulates with the axis. The atlas is the first cervical vertebra and articulates with the skull superiorly, and the axis (the second cervical vertebra) inferiorly. The joint between the atlas and axis, dubbed the atlanto-axial joint, is responsible for the increased range of motion of the skull (turning your head left/right, and nodding up/down).
The order of the atlas and axis can be remembered because, beginning from the skull, these two cervical vertebrae are in alphabetical order (aTlas then aXis).
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What two bones articulate with the axis?
The axis, or second cervical vertebra (C2), articulates with two bones: the atlas (C1), which is the first cervical vertebra, and the occipital bone of the skull. The joint between the atlas and axis allows for the rotation of the head, while the connection with the occipital bone facilitates nodding movements.
What is oval-shaped protrusions articulate with atlas?
occipital bone
What is the rounded processes on the skull that articulate with the atlas?
Occipital condyles
Does hyoid articulate in the atlas?
The Hyoid bone does not have any articulations. It is commonly described as a gyroscope. It is held in place by the suprahyoid and infrahyoid musculature. It has a deep relationship with the Atlas however does not articulate directly with it.
Its oval-shaped protrusions articulate with the atlas?
The occipital condyles are oval-shaped structures on the occipital bone that articulate with the superior facets of the atlas (C1 vertebrae). This joint, called the atlanto-occipital joint, allows for flexion and extension of the head.
What bones articulate with the ulna?
The carpals articulate distally with the ulna. The carpals are also known as the wrist bones.
Do most facial bones articulate with the mandible?
No, most facial bones do not articulate with the mandible. The mandible primarily articulates with the temporal bones at the temporomandibular joint, while the rest of the facial bones are connected by sutures and ligaments.
What bone is condyles?
Condyles are rounded articular surfaces found at the ends of certain bones, where they form joints with adjacent bones. The term "condyle" is commonly associated with bones such as the femur, where the medial and lateral condyles articulate with the tibia at the knee joint, and the occipital bone, which features the occipital condyles that articulate with the first cervical vertebra (atlas). These structures play a crucial role in joint movement and stability.
Which bones does not articulate with the maxillae?
zyomatic
What flat bones articulate with the thoracic vertebrae?
The ribs articulate with the thoracic vertebrae.
What Vertebrae are not attached to ribs called?
The cervical and lumbar vertebrae do not articulate with the ribs. The thoracic vertebrae are the only ones that articulate with the ribs.
What bones articulate with the posterior aspect of the sphenoid?
Temporal
