Axis (C2)
Axis
The axis is characterized by the dens (odontoid process), a tooth-like projection that extends superiorly from the body to articulate with the anterior arch of the atlas. This unique arrangement allows approximately 50% of cervical rotation.
Función
The second cervical vertebra that provides a pivot point for rotation of the head. The dens (odontoid process) projects superiorly and acts as the axis around which the atlas rotates.
Significado clínico
Odontoid fractures are common cervical spine injuries, especially in elderly patients. Hangman's fracture involves bilateral pars interarticularis fractures of C2. Atlantoaxial instability occurs in rheumatoid arthritis and Down syndrome.
Preguntas frecuentes
What is the Axis (C2)?
What is the function of the Axis (C2)?
What body system is the Axis (C2) part of?
What conditions affect the Axis (C2)?
Where is the Axis (C2) located?
Estructuras relacionadas
Aviso médico
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