BASIC OSTEOLOGY - vertebral column C1 Flashcards
What osseous modification is observed to the front of the anterior arch of C1?
the anterior tubercle
What is observed on the back of the anterior arch of C1?
the fovea dentis
What attaches behind the anterior arch of C1?
the lateral mass
What is the name of the rounded elevation on the medial aspect of the lateral mass of C1?
tubercle for the transverse atlantal ligament
What attaches to the back of the lateral mass of C1?
the posterior arch
What is identified in the midline at the back of the posterior arch of C1?
the posterior tubercle
What superior surface modification of the posterior arch of C1 is present near the lateral mass?
groove/sulcus for the vertebral artery
What superior surface modification is present near the posterior tubercle of the posterior arch of C1?
the arcuate rim
What attaches to the arcuate rim of the posterior arch of atlas and to the superior articular process of the lateral mass of atlas?
a complete ponticulus posticus
Based on the amount of bony union between the superior articular process and the arcuate rim of C1 what structure will form?
an incomplete ponticulus posticus or a complete ponticulus posticus
What names are given to the opening formed by the ponticulus positcus
arcuate foramen or retroarticular canal
what is the name given to the anterior part of the transverse process of C1
the costal element
What is the name given to the posterior part of the transverse process of C1
the true transverse process
what is the distal most part of the transverse process of C1
the posterior tubercle
