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J's extra decks > spinal anatomy > Flashcards

spinal anatomy Flashcards

1
Q

4 major funtions of bony vertebral column?

A
  • support weight of body above pevlic girdle
  • protection for the spinal cord and individual spinal nerves
  • providing a partly rigid yet flexible axis for the body and an extended base on which the head is placed and rotates
  • vital role player in posture and locomotion
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2
Q

what function do the zygapophyseal joints provide?

A

-add to vertebral columns flexibility

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3
Q

what is the purpose of the gradual increases in vertebral size as spinal column descends?

A

increased weight bearing needs

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4
Q

what is a typical vertebrae comprised of?

A
  • vertebral body
  • vertebral arch
  • seven processes
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5
Q

function of vertebral body?

A

give the strength of vertebral column and support body weight

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6
Q

what is the inner most part of vertebral body known as?

A

centrum

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7
Q

where is vertebral arch located and what does to consist of?

A
  • posterior to vertebral body

- two Rt and Lt pedicles and laminae

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8
Q

what are vertebral notches?

A

indentations seen on lateral view of vertebrae superior and inferior to each pedicle

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9
Q

what are intervertebral foramina?

A

Foramen/holes where the spinal nerves emerge from vertebral column

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10
Q

how many processes typically make up the vertebral arch on a typical spinal vertebrae?

A

7

  • 1 spinous process
  • 2 transverse processes
  • 4 articular processs
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11
Q

which processes on a typical spinal vertebrae give connection for the deep back muscles as well as serve as controls for enabling the muscles that fix or change position of vertebrae?

A
  • spinous process

- transverse process

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12
Q

what is the function of facet/zygapophyseal joints?

A
  • determine types of movement permitted and restricted between adjacent vertebrae of each region
  • maintaining alighnement of vertebral column
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13
Q

what is another name for C1?

A

atlas

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14
Q

what is another name for C2?

A

axis

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15
Q

what unique feature is a part of C2?

A

dens or odontoid process

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16
Q

what unique feature of the cervical vertebrae allows for the vertebral arteries and their veins to pass through?

A
  • transverse foramina

- or foramen transversarium

17
Q

Which cervical segment only allows for the passage of small accessory veins?

A

C7

18
Q

what does the transverse process of cervical vertebrae end with laterally?

A

anterior and posterior tubercle

19
Q

what do the anterior and posterior tubercles provide attachments for?

A

lateral cervical muscles

20
Q

what lateral muscles attach to the anterior and posterior tubercles of the cervical spine?

A
  • levator scapulae

- scalenes muscles

21
Q

what is the longer spinous process of C7 titled?

A

vertebra prominens

22
Q

what is the most commonly fractured vertebra?

A

T12

23
Q

what is the largest of all the movable verebrae?

A

L5

24
Q

There is not an intervertebral disc located between C1 and C2.
T or F

A

True

25
Q

which aspect of the inter-vertebral disc’s anulus fibrosis is thinner and allows for the nucleus pulposes to slip into the spinal cord?

A

posterior

26
Q

in the spine, which ligament is the only ligament that restricts extension?

A

anterior longitudinal ligament

27
Q

what is the location and function of the interspinous ligament?

A
  • more anteriorly situated

- connects the length of the spinous processes Superiorly and inferiorly to the ligament

28
Q

What is the supraspinous ligament and where is it located?

A

-vertical band that connects the dorsal tips of teh spinous processes from C7 to Sacrum

29
Q

what is the nuchal ligament?

A

a broad band of tissue extending posteriorly from the foramen magnum through the spinous processes of cervical vertebrae

30
Q

where are the intertransverse ligaments located?

A
  • in the cervical and thoracic region

- connect adjacent transverse processes

31
Q

what are the major ligaments of the spine?

A
  • ALL
  • PLL
  • ligamentum flavum

J's extra decks (9 decks)

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