Flashcards in Spinal 2 Wk 5 Deck (29):
The greatest range of flexion - extension among the typical cervical vertebrae occurs at which vertebral couple?
What motions are coupled in the cervical spine?
Lateral bending and axial rotation.
Ranges of coupled motion among the typical cervical vertebrae will begin to decrease at what cervical vertebral couple?
The C5/C6 vertebral couple.
What is the morphology of the superior articular facet of C1?
They are elliptical, closer together in front and often demonstrate an elevation subdividing the facet surface into two separate surfaces.
What are the morphological characteristics of the inferior articular facet of C1?
Asymmetrical, slightly concave or flattened.
What is the orientation of the inferior articular facet of C1?
What is the name of the rounded elevation of the medial aspect of the lateral mass of C1?
Tubercle of the transverse atlantal ligament
What muscles attach to the lateral mass of C1?
Levator scapula, splenius cervicis and rectus capitis anterior.
What is the distance from the posterior tubercle of the posterior arch to the skin in each gender?
Males: ~50 mm
Females: ~37 mm
What attaches to the posterior tubercle of the posterior arch of C1?
Rectus capitis posterior minor muscle and ligamentum nuchae.
With regard to ossification of the posterior atlanto-occipital ligament, what is the gender bias, bone classification, amount of ossification, amount of ossification and general percent in the population?
Male: accessory bone, complete ponticulus posticus, 15%
Female: accessory bone, partial ponticulus posticus, 26%
What are the osseous parts of the transverse process of C1?
Costal element, posterior tubercle, true transverse process.
What muscles attach to the transverse process of C1?
Rectus capitis anterior, rectus capitis lateralis, middle, scalene, levator scapula, splenius cervicis, obliquus capitis superior, obliquus capitis inferior and intertransversarii muscles.
What is the gender measurements of the transverse diameter of C1?
Males: 78 mm
Females 72 mm
What is the distance from the posterior tubercle of the transverse process of C1 to the skin for each gender?
A little over 30 mm for both genders.
What joint classifications are observed at C1?
Amphiarthrosis syndesmosis, diarthrosis ellipsoidal, diarthrosis trochoid, diarthrosis arthrodia
What is the name given to the odonoid process when the facet for the fovea dentis 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?
What joint classifications are present at the vertebral body of C2?
Amphiarthrosis syndesmosis, diarthrosis trochoid, modified diarthrosis sellar and amphiarthrosis symphysis.
What ligament forms the anterior boundary for the spinal canal above C2?
What lies on the upper surface of the pedicle of C2?
The superior articular process.
What attaches to the lamina of C2?
Obliqua capitis inferior muscle, posterior atlanto-axial ligament ligamentum flavum.
What is the facet orientation of the superior articular facet of C2?
What is the gender variation for the trransverse diameter of C2?
Males: 57 mm
Females: 50 mm
What name is given only to C7?
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.
How many joint surfaces are present at the vertebral body of C7?
What muscles attach to the transverse process of C7?
Middl scaline, iliocostalis thoracis, longissimus cervicis, semispinalis capitis, rotators, intertransversarii and levator costarum brevis.
What is the orientation of the inferior articular facet of C7?