Day 3 Flashcards
(17 cards)
What joint surfaces are present on the odontoid process of C2?
facet for fovea dentis, groove for transverse atlantal ligament, attachment sites for the alar ligaments, attachment site for the apical-dental ligament
Which joint classifications are represent at the odontoid process of C2?
fibrous (amphiarthrosis) syndesmosis joint and synovial pivot (diarthrosis trochoid) joint
What is the name given to the odontoid process when the facet for the fovea dentis lies above the groove for the transverse atlantal ligament and the attachment sites for the apical-dental and alar ligaments appear to be directed posterior?
lordotic dens
What is the name given to the odontoid process when the facet for the fovea dents lies below the groove for the transverse atlantal ligament and the attachment sites for the apical-dental and alar ligaments appear to be directed anterior?
kyphotic dens
What joint classifications are present at the inferior part of the vertebral body of C2?
fibrous (amphiarthrosis) synedsmosis, modified synovial saddle (diarthrosis sellar) and cartilaginous (amphiarthrosis) symphysis
How many joint surfaces are present at the vertebral body of C2?
ten
What joint classifications are present at the vertebral body of C2?
fibrous (amphiarthrosis) syndesmosis, synovial pivot (diarthrosis trochoid), modified synovial saddle (diarthrosis sellar) and cartilaginous (amphiarthrosis) symphysis
What ligament forms the anterior boundary for the spinal canal above C2?
membrana tectoria
What ligament forms the anterior boundary for the spinal canal below C2?
posterior longitudinal ligament
What lies on the upper surface of the pedicle of C2?
the superior articular process
What attaches to the lamina of C2?
obliquus capitis inferior muscle, posterior atlanto-axial ligament, ligamentum flavum
What is the appearance of the superior articular facets of C2?
they are asymmetrical and slightly convex
What is the facet orientation of the superior articular facet of C2?
backward, upward, and lateral (BUL)
What is the orientation of the inferior articular facets of C2?
forward, lateral, and down (FoLD)
What muscle attaches to the articular process of C2?
longissimus cervicis
What is the gender variation for the transverse diameter of C2?
males: fifty-seven millimeters and females: fifty milliliters
What muscles attach to the transverse process at C2?
levator scapulae, middle scalene, spenius cervicis, longissimus cervicis and intertransversarii
