Unit 1 - IV. Basic Osteology of the Vertebral Column, Sternum and Ribs Flashcards Preview

Spinal Anatomy > Unit 1 - IV. Basic Osteology of the Vertebral Column, Sternum and Ribs > Flashcards

Flashcards in Unit 1 - IV. Basic Osteology of the Vertebral Column, Sternum and Ribs Deck (278)
Loading flashcards...
1

What is the name given to the front of the C1 bony ring?

the anterior arch

2

What osseous modification is observed to the front of the anterior arch of C1?

the anterior tubercle

3

What is observed on the back of the anterior arch of C1?

the fovea dentis

4

What attaches behind the anterior arch of C1?

the lateral mass

5

What is the name given to the upper margin of the lateral mass of C1?

the superior articular process

6

What does the superior articular process of C1 support?

the superior articular facet

7

What is the name given to the lower margin of the lateral mass of C1?

the inferior articular process

8

What does the inferior articular process of C1 support?

the inferior articular facet

9

What is the name of the rounded elevation on the medial aspect of the lateral mass of C1?

tubercle for the transverse atlantal ligament

10

What attaches to the back of the lateral mass of C1?

the posterior arch

11

What is identified in the midline at the back of the posterior arch of C1?

the posterior tubercle

12

What superior surface modification of the posterior arch of C1 is present near the lateral mass?

groove/sulcus for the vertebral artery

13

What superior surface modification is present near the posterior tubercle of the posterior arch of C1?

the arcuate rim

14

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

15

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

16

What names are given to the opening formed by the ponticulus posticus?

arcuate foramen or retroarticular canal

17

What is observed on the undersurface of the posterior arch of C1?

the inferior vertebral notch

18

What is the name given to the triangular area of bone arising from the lateral mass of C1?

the transverse process

19

What is the name given to the anterior part of the transverse process of C1?

the costal element

20

What is the name given to the posterior part of the transverse process of C1?

the true transverse process

21

What is the distal most part of the transverse process of C1?

the posterior tubercle

22

What opening is identified in the transverse process of C1?

the transverse foramen

23

What unique vertebral body modification is characteristic of C2?

the dens or odontoid process

24

What 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 for the apical-dental ligament

25

What feature is identified on the anterior surface of the odontoid process of C2?

facet for fovea dentis

26

What feature is identified on the posterior surface of the odontoid process of C2?

groove for transverse atlantal ligament

27

What feature is identified on the superolateral margins of the odontoid process of C2?

attachment sites for the alar ligaments

28

What feature is identified on the tip of the odontoid process of C2?

attachment site for the apical-dental ligament

29

What feature is identified on the anterior surface of the vertebral body of C2?

the longus colli muscle attachment

30

What features are present at the inferior part of the vertebral body of C2?

the inferior epiphyseal rim and cancellous bone