D. Atypical Cervical Vertebrae: C7/Vertebra Prominens Flashcards
What names may be given to C7?
vertebra prominens and vertebral prominence
What name is given only to C7?
vertebra prominens
In what percent of men and women does C7 become the vertebral prominence?
men: 86%
women: 79%
What is the segment and gender bias for vertebrae other than C7 becoming the vertebral prominence?
C6 is more common in females and T1 is more common in males
What joint surfaces are present at the inferior margin of the vertebral body of C7?
the anterior and posterior margins of the inferior epiphyseal rim, cancellous bone
How many joint surfaces are present at the vertebral body of C7?
8
What joint classifications are observed at the vertebral body of C7?
fibrous (amphiarthrosis) syndesmosis, cartilaginous (amphiarthrosis) symphysis and modified synovial saddle (diarthrosis sellar) joint
How many synovial joint surfaces are observed at the vertebral body of C7?
2
What muscle (s) attaches to the vertebral body of C7?
longus colli muscle
What features are typically present in the transverse foramen of C7?
vertebral venous plexus, postganglionic sympathetic motor fibers
What muscles attach to the transverse process of C7?
middle scalene, iliocostalis thoracis, longissimus cervicis, semispinalis capitis, rotators, intertransversarii and levator costarum brevis
What is the orientation of the superior articular facet of C7?
backward, upward, medial (BUM)
What is the orientation of the inferior articular facet of C7?
forward, medial, downward (ForMeD)
What muscles will attach to the articular process of C7?
longissimus cervicis, longissimus capitis, semispinalis cervicis and multifidis
What muscles attach to the spinous process of C7?
trapezius, rhomboid minor, serratus posterior superior, splenius capitis, spinalis capitis, spinalis cervicis, semispinalis thoracis, multifidis, rotators and interspinalis
