Basic anatomy of the spine Flashcards

1
Q

How many cervical vertebrae?

A

7

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2
Q

How many thoracic vertebrae?

A

12

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3
Q

How many lumbar vertebrae

A

5

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4
Q

How many coccygeal vertebrae?

A

2

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5
Q

Why is C1 not typical?

A

No spinous process

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6
Q

Why is C2 not typical?

A

Odontoid process

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7
Q

Why is c7 not typical?

A

Long spinous process

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8
Q

What is the spine?

A

Spinal cord and vertebral column

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9
Q

What is the back?

A

Back of trunk

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10
Q

What I the trunk?

A

Body minus head and limbs

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11
Q

What is the torso?

A

trunk

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12
Q

How many vertebrae and nerve roots in the cervical region and why?

A

7 vertebrae and 8 roots - cervical roots come out above the vertebrae

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13
Q

Normal spinal curves

A

Cervical lordosis
Thoracic kyphosis
Lumbar lordosis

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14
Q

What cause hunchbacks?

A

Wedge shaped vertebrae = worsened thoracic kyphosis

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15
Q

When do you form your cervical lordosis?

A

3 months - you start lifting your head

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16
Q

When do you form your lumbar lordosis?

A

When you stand up - 1 yo

17
Q

What is scoliosis?

A

Lateral curvature of the spine

18
Q

Where do the vertebral arteries exit the spine?

A

Transverse foramen

19
Q

Characteristics of cervical vertebrae

A

Small body
Short bifid
triangular foramen

20
Q

Characteristics of thoracic vertebrae

A

Larger than cervical, heart shaped
Long sharp spinous process
Circular vertebral foramen

21
Q

Characteristics of lumbar vertebrae

A

Kidney shaped, triangular vertebral foramen

22
Q

What is spina bifida?

A

Neural tube fails to close and contents of spinal canal billow outwards - characteristic tuft of hair on spine

23
Q

What are the two components of the intervertebral discs?

A

Filled with nucleus pulpous

Annular fibrosis around edge of disc

24
Q

What is a slipped disc?

A

herniation of nucleus pulpous from vertebra when annular fibrosis is fractured

25
Q

Where does the spinal cord end?

A

l1/2

26
Q

What is important to remember about lumbar nerve roots>

A

Emerge 3 levels above vertebrae :

  • Herniation of L3/4 disc would affect dermatome L4
  • Fracture L3 affects dermatome everything below L3
27
Q

Where is the CSF contained?

A

Dural sack

28
Q

How to get to flavour ligament

A

SKin - fat - supraspinous - infraspinous - flavour ligament

29
Q

Ligaments in back

A

Supraspinous ligament

Ligamentum flavum

Anterior longitudinal ligament

Posterior longitudinal ligament