Unit 1 - III. Vertebral Column / Spinal Column Flashcards Preview

Spinal Anatomy > Unit 1 - III. Vertebral Column / Spinal Column > Flashcards

Flashcards in Unit 1 - III. Vertebral Column / Spinal Column Deck (243)
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1

What is the number of vertebrae in a typical adolescent?

33 segments

2

What is the number of vertebrae in a typical adult?

26 segments

3

What is the number of vertebrae in the typical spine?

24 segments

4

What constitutes the spine?

the 24 presacral segments; the cervical, thoracic and lumbar vertebrae

5

How many segments unite to form the typical sacrum?

5 segments

6

How many segments unite to form the typical coccyx?

4 segments

7

What does the term "cervical" refer to?

the region of the neck

8

What is the typical number of segments in the cervical region?

7 segments

9

What does the term "thoracic" refer to?

breast plate or chest; it referred to the armor bearing region of the torso

10

What other term is often used to identify the vertebral segments of the chest?

the dorsal segments; the dorsals

11

What is the typical number of segments in the dorsal or thoracic region?

12 segments

12

What does the term "lumbar" refer to?

the loin; the region between the rib and the hip

13

What is the typical number of segments in the lumbar region?

5 segments

14

What does the term "sacrum" refer to?

the holy bone or holy region

15

What does the term "coccyx" refer to?

a cuckoo birds' bill or cuckoo birds' beak

16

Which region of the spine is more stable in terms of the number of segments/vertebrae?

the cervical region

17

Which variations account for the disparity in number and morphology of vertebrae within the population?

sexual dimorphism or gender variation, ontogenetic variation (growth variation or age variation), geographic variation or population-based variation, and idiosyncratic variation (individual variation)

18

What is the length of a typical male spinal column?

about 70 centimeters or 28 inches

19

What is the length of a typical female spinal column?

about 60 centimeters or 25 inches

20

What is the difference in length between a typical male and typical female spinal column?

about 3 inches

21

What is the length of the male cervical region (both measurements)?

about 12 centimeters or 5 inches

22

What is the length of the male thoracic region (both measurements)?

about 28 centimeters or 11 inches

23

What is the length of the male lumbar region (both measurements)?

about 18 centimeters or 7 inches

24

What is the length of the male sacrum (both measurements)?

about 12 centimeters or 5 inches

25

Based on the numbers for individual regions of the vertebral column, what is the length of the male spine (both measurements)?

about 58 centimeters or 23 inches

26

How does the vertebral column participate in protection of neural tissues?

the spinal cord and beginning PNS are located within the vertebral segments

27

How does the vertebral column participate in protection of the viscera?

ribs are attached to vertebrae to form the thorax thus protecting the heart and lungs

28

What parts of the body are supported by the vertebral column?

the head, upper extremities, ribs, viscera, and pelvis

29

How does the vertebral column participate in skeletal formation?

ribs are formed from the costal process of the embryonic vertebral template

30

What levels of the vertebral column specifically accommodate weight-bearing transfer?

S1-S3 at the auricular surface