Axial Skeleton Flashcards

1
Q

How many total vertebrae are there?

A

33

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2
Q

How many cervical vertebrae?

A

7

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3
Q

How many thoracic vertebrae?

A

12

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4
Q

How many lumbar vertebrae?

A

5

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5
Q

How many sacral vertebrae?

A

5, fused

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6
Q

How many coccygeal vertebrae?

A

4, fused

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7
Q

What are the normal primary curves?

A

Thoracic and sacrococcygeal

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8
Q

What are the normal secondary curves?

A

Cervical and lumbar

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9
Q

What is kyphosis?

A

Abnormal posterior curve of the thoracic vertebrae

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10
Q

What is the name for abnormal anterior curve of the lumbar?

A

Lordosis

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11
Q

Where does scoliosis occur?

A

Thoracic and/or lumbar

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12
Q

Where are the pedicles, lamina, body and spinous and transverse processes of a normal vertebra?

A

Think about them

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13
Q

In which vertebrae are there transverse foramina?

A

Cervical

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14
Q

What passes through the transverse foramina?

A

vertebral aa.

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15
Q

Which vertebrae have a bifid spinous process?

A

Cervical

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16
Q

What is a unique feature of the atlas?

A

It has no body.

17
Q

What is a unique feature of the axis?

A

It has the odontoid process.

18
Q

For what movement is the atlas responsible?

A

“Yes” motion

19
Q

For what movement is the axis responsible?

A

“No” motion

20
Q

Which cervical vertebra does not have a bifid spinous process?

A

C7

21
Q

Which vertebrae have spinous processes that point sharply downward?

A

Thoracic

22
Q

Which vertebrae have articular facets for ribs?

A

Thoracic

23
Q

Where do the ribs articulate with the vertebrae?

A

Thoracic vertebrae of same number articulates with the head of the rib on its body and the tubercle of the rib on its transverse process. The rib head also articulates with the body of the thoracic vertebra one level higher.

24
Q

What interacts with the vertebrae above and below a given vertebra?

A

Superior and inferior articular processes.

25
Q

Identify the ventral and dorsal sacral foramina

A

Yes

26
Q

Identify the sacral canal

A

yes

27
Q

Identify the median sacral crest

A

yes

28
Q

What is the auricular surface?

A

Articulation between the sacrum and the ilium.

29
Q

What transmits the spinal cord?

A

Vertebral foramen

30
Q

Where do the spinal nerves exit?

A

The intervertebral foramina

31
Q

What are the two components of the intervertebral discs?

A

Nucleus pulposus and annulus fibrosus