3.1 Osteology and Radiography of the Cervical Spine Flashcards Preview

Semester 4- Head and Neck > 3.1 Osteology and Radiography of the Cervical Spine > Flashcards

Flashcards in 3.1 Osteology and Radiography of the Cervical Spine Deck (25):
1

What is the alternative name for the C1 vertebrae?

Atlas

2

What is the alternative name for the C2 vertebrae?

Axis

3

What is special about the atlas bone?

No body or spinous process

4

What is special about the axis bone?

Odontoid peg (Dens)

5

What is the function of the Dens?

Allows movement of the head

6

What movement does the axis allow?

Horizontal movement

7

What movement does the atlas allow?

Vertical movement

8

What is special about the C7 vertebra?

Prominent, non-bifid spinous process, large transverse process

9

Describe some features of a 'normal' cervical vertebrae

Body
Triangle shaped vertebral foramen
Transverse foramen
Bifid spine

10

What is a burst fracture (Jefferson)?

Break on both sides of atlas
Caused by falling head first from height

11

What is a hangman's fracture?

Hyperextension of the head on the neck. Lamina of axis breaks

12

How many bones make up the skull?

22

13

How are the bones of the skull connected?

Sutures or symphyses

14

Which main bones make up the 'box' of the skull?

Frontal
Parietal
Temporal
Sphenoid
Occipital

15

What is the major opening into the skull called?

Foramen magnum

16

What type if bones are the skull bones?

Flat bones- dense and strong

17

Describe the composition of the cranium

Tri-lamina bony structure- 2 hard plates with a spongy bone plate (Dipoe) between

18

What is the Calvaria?

Bony housing of the brain

19

What is the name of the two suture points in the cranial cap?

Bregma point
Lambda point

20

Where is the frontal bone located?

Anterior part of skull vault, upper border of orbital margins, roof of orbit

21

Where is the parietal bone located?

Large part of the side and roof of the cranial cavity

22

Where is the ethmoid bone located?

Midline of the anterior cranial fossa, projects into the nose

23

Describe the sphenoid bone

Made up of body, 2 wings and the pterygoid process

24

Describe the connections between the bones in a neonate skull

Cranial sutures wide, bones held together by thick connective tissue (fontanelles)

25

Why is a neonate skull loosely connected?

To allow movement between the bones during birth