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Annabel's Anatomy > Lumbar Spine Arthrology > Flashcards

Lumbar Spine Arthrology Flashcards

1
Q

Vertebral arch of a typical vertebra

A
  • Posterior part of the vertebrae
  • It is attached to the body of the vertebra
  • It is sometimes referred to as the neural arch
  • It is formed by 2 pedicles and 2 laminae
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2
Q

Anterior longitudinal ligament

A

Located on the anterior aspect of vertebral bodies

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3
Q

Posterior longitudinal ligament

A

Located in the neural canal on the posterior aspect of vertebral bodies

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4
Q

Ligamentum flavum

A

Connects adjacent laminae of the vertebral arches

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5
Q

Interspinous ligament

A

Connects adjacent spinous processes

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6
Q

Supraspinous ligament

A

Connects the tips of adjacent spinous processes

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7
Q

Intertransverse ligament

A

Connects adjacent transverse processes

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8
Q

Intervertebral discs thickness:

A

Differs in different parts along the vertebral column

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9
Q

Classify joints between vertebral bodies

A

Secondary cartilaginous joints

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10
Q

Classify joints between vertebral arches

A

Synovial plane joints

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11
Q

How are the vertebral bodies connected?

A

Anterior and posterior longitudinal ligaments and fibrocartilaginous intervertebral discs

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12
Q

What are zygoapopheseal joints (facet joints) formed by

A

Opposing articular processes

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13
Q

How many vertebrae in the vertebral coloumn?

A

33

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14
Q

How many vertebrae are usually movable?

A

24

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15
Q

Which vertebrae are the smallest movable vertebrae?

A

7 cervical vertebrae

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16
Q

Which vertebrae are largest?

A

5 lumbar vertebrae

17
Q

Functions of intervertebral discs

A
  • Shock absorbers for axial forces
  • Inner nucleus pulposus acts like a semifliud ball in young people during movements of the vertebral column
  • Allow tilt with no contact with the lower v.
18
Q

BODY

A

Large, wider from side to side than from front to back.
Flattened or slightly concave above and below.
Concave behind
Deeply constricted in front and to the sides.

19
Q

PEDICLE

A

One of a pair.
Short, thick process
Projects dorsally from superior part of body
Connects the body of vertebra to the arch

20
Q

TRANSVERSE PROCESS

A

One of a pair.
They project one at either side from the point where the lamina joins the pedicle, between the superior and inferior articular processes. They serve for the attachment of muscles and ligaments.

21
Q

SUPERIOR ARTICULAR PROCESS

A

A projection which serves to fit one vertebra with an adjacent vertebra. This projection is upwards from a lower vertebra.

22
Q

SPINOUS PROCESS

A

Directed backward and downward from the junction of the laminae and serves for the attachment of muscles and ligaments.

23
Q

LAMINA

A

A broad plate, extending dorsally and medially from the pedicle, fusing to complete the roof of the vertebral arch.

24
Q

SUPERIOR ARTICULAR FACET

A

The actual region of contact between two adjacent vertebrae. This facet is on the lower of the two vertebrae and it projects upwards to make contact with the vertebra above.

25
Q

INFERIOR ARTICULAR FACET

A

The actual region of contact between two adjacent vertebrae. This facet is on the upper of the two vertebrae and it projects downward to make contact with the vertebra below.

26
Q

NEURAL CANAL

A

Houses the spinal cord and associated meniges.

27
Q

MAMMILLARY PROCESS

A

Superior one is connected in the lumbar region with the back part of the superior articular process.

28
Q

How many cervical vertebrae?

A

7

29
Q

How many thoracic vertebrae?

A

12

30
Q

How many lumbar vertebrae?

A

5

31
Q

How many sacral vertebrae?

A

5

32
Q

How many coccygeal vertebrae?

A

4

33
Q

What is the joint called between vertebral bodies?

A

Invertebral symphysis

34
Q

What are the two posterior joints called?

A

Zygoapophaseal

35
Q

IV Disc structure

A

Central nucleus pulposus
Peripheral annulus fibrosis
Cartilage end plate
Type II collagen

36
Q

ANNULUS FIBROSUS

A

Organised concentric rings of cartilage
10-20 lamellae
Thinner posteriorly

37
Q

NUCLEUS PULPOSUS

A

Semi-fluid
Ground substance, cartilage cells, collagen fibres
Deformed under pressure

Annabel's Anatomy (12 decks)

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