Lecture 7- Vertebral Column Flashcards Preview

CHI282 - Human Anatomy 2 > Lecture 7- Vertebral Column > Flashcards

Flashcards in Lecture 7- Vertebral Column Deck (33):
0

Cervical, Thoracic, Lumbar, Sacrum, Coccyx has how many vertebrae each?

Cervical: n = 7

Thoracic: n = 12

Lumbar: n = 5

Sacrum: n = 5 (fused)

Coccyx: n = 4 (Co2-Co4 are fused)

1

Which sections of the vertebrae are mobile?

Cervical, thoracic and lumbar

2

Total number of vertebrae?

33

3

Functions of vertebral column

• Protects spinal cord and spinal nerves.

• Supports weight of body above pelvis.

• Provides a partly rigid and flexible axis for body.

• Plays important role in posture and locomotion.

4

Vertebral body consists of


vascular, trabecular (spongy, cancellous) bone enclosed by thin compact bone layer.

5

Movement of the spine determined by what things?

1. Size and compressibility of the IV discs
2. Tightness of joint capsules
3. Orientation of articular facets
4. Muscle and ligament function
5. Articulations with thoracic cage (ribs)
6. Limitations imposed by the adjacent tissues and
increasing age

6

Cervical curvature (........): acquired
................ when infant can support weight of it’s own head.

Lordosis
Secondarily

7

Thoracic curvature (..........): .......... curvature present in foetus.

Kyphosis
Primary

8

Lumbar curvature (..........): acquired ........... when infant can stand ........... and support its own weight.

Lordosis
Secondarily
Upright

9

Sacral curvature: ......... curvature present in feature.

primary

10

Seven processes arise from the vertebral arch of
a typical vertebra what are these?

1. Spinous process
2. Transverse process x2
3. Articular process x4

11

The cervical vertebrae has the greatest range of movement because of relatively ........ ..... ......., nearly .......... orientation of articular facets and less ...... of body surrounding cervical vertebrae.

thick IV discs
horizontal
mass

12

C3-C7 are what type of vertebrae

Typical cervical

13

Spinous of which section of the vertebrae bifurcates?

Cervical

14

What muscle connects to the posterior tubicle

Levator scapula

15

What specific vertebrae in the cervical region has no spinous process?

Atlas

16

The atlas is the ...... cervical vertebrae?

Widest

17

The atlas has superior articulation with ......... ........

Occipital condyles

18

The atlas has Inferior articular with the ......(c2)

Axis

19

The axis is the ...... vertebrae

Strongest

20

The axis has a small ....... .......

Transverse process

21

The axis has an Odontoid process which is also referred to as the .....?

Dens

22

C4 has a large ......

Body

23

C4 has a circular transverse ........

Foremen

24

C7 has a large spinous process referred to as ........ .......?

Vertebra Prominens

25

Vertebral artery branches from the ............ ........
Ascends through .......... to enter ......... ........

SUBCLAVIAN ARTERY
C6-C1
foramen magnum

26

Vertebral artery travels through what structure of the cervical vertebrae?

Transverse foramina

27

Pediatric cervical spine
Instability caused by:
• Ligamentous laxity;
• Shallow and angled facet joints;
• Under-developed spinous processes;
• Incomplete ossification of odontoid process;
• Relatively large head;
• Weak neck muscles.
• Younger children more susceptible to upper cervical
spine injury (occiput -> C3).

.

28

...... -years-old cervical spine reaches adult proportions

8-10

29

Fulcrum of motion at ......... (adults....... );

C2-C3
C5-C6

30

Thoracic vertebrae specialise in what type of movement?

Rotation

31

Spinous processes in the thoracic vertebrae face .......?

Inferiority

32

The thoracic vertebrae have transverse costal facets, what fits into these?

Ribs