Questions and Answers
What is the name of the central portion of the axis vertebra?
Axis body (centrum)
What is another name for the axis dens?
Odontoid process
What are the lateral projections on the axis vertebra called?
Transverse processes of axis
What do you call the openings in the transverse processes of the axis?
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What is the dorsal projection of the axis vertebra known as?
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What is the name of the specific part located inferior to the axis?
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What is the name of the facet located on the inferior side of the axis?
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What is the name of the facet located on the superior side of the axis?
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Study Notes
Axis Anatomy and Structures
- The axis is the second cervical vertebra, also known as C2, pivotal for head rotation.
- The axis body (centrum) serves as the main weight-bearing structure, providing support and stability to the vertebrae.
Odontoid Process
- The axis dens (odontoid process) is a peg-like projection that extends upward from the axis, articulating with the atlas (C1) to facilitate rotational movement.
Transverse Processes
- Transverse processes of axis are lateral bony projections that serve as attachment points for muscles and ligaments, crucial for neck movement and stability.
Foramina
- Transverse foramina of axis are openings in the transverse processes that allow the passage of the vertebral arteries and veins, vital for blood supply to the brain.
Spinous Process
- The axis spinous process is a prominent posterior projection that can be felt as a bony bump at the back of the neck, providing attachment for muscles and ligaments.
Articular Processes
- The inferior articular process connects the axis to the cervical vertebra below (C3), playing a key role in maintaining stability and allowing for smooth movement between vertebrae.
- The axis inferior articular facet is the surface on this process that articulates with C3, essential for intervertebral motion.
Superior Articular Facet
- The axis superior articular facet provides a surface for articulation with the atlas, enabling rotation and nodding of the head while maintaining a secure connection between the vertebrae.
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Description
Test your knowledge of the axis vertebrae and their specific structures with this informative flashcard quiz. Each card focuses on a different anatomical feature, helping you to master the identification of the axis and its components. Perfect for students studying anatomy or preparing for examinations.
