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Flashcards in Exam One Deck (226)
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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

Which mammals do not have seven cervical vertebrae?

two toed sloth,
manatee,
ant bear,
three toed sloth

8

Which mammals have more than seven cervical vertebrae?

ant bear and
three toed sloth

9

Which mammals have less than seven cervicals?

manatee and
two toed sloth

10

What does the term "cervical" refer to?

the region of the neck

11

What does the term thoracic refer to?

breast plate or chest,
armor bearing region of the torso

12

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

the dorsals

13

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

12 segments

14

What does the term "lumbar" refer to?

the loin, region between the rib and the hip

15

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

5 segments

16

What does the term "sacrum" refer to?

the holy bone or holy region

17

What does the term "coccyx" refer to?

a cuckoo birds' bill or cuckoo birds' beak

18

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

-gender/sexual dimorphism
-ontogenetic
-geographic/population-based
-idiosyncratic

19

Differences in the number of morphology of vertebrae within the population based on male and female variation is identified as which type of variation?

gender/sexual dimorphism

20

Differences in the number and morphology of vertebrae within the population based on age or developmental variation is identified as which type of variation?

ontogenetic

21

Differences in the number and morphology of vertebrae within the population based on ethnicity or locational variation is identified as?

geographic/population based variation

22

Differences in the number and morphology of vertebrae within the population based on variation between individuals is identified as which type of variation?

idiosyncratic

23

What is the length of a typical male spinal column?

70cm or 28in

24

What is the length of a typical female spinal column?

60cm or 25in

25

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

about 3in

26

What is the length of the male cervical region? (cm and in)

12cm or
5in

27

What is the length of the male thoracic region? (cm and in)

28cm or
11in

28

What is the length of the male lumbar region? (cm and in)

18cm or
7in

29

What is the length of the male sacrum? (cm and in)

12cm or
5in

30

Based on the numbers for individual regions of the vertebral column, what is the length of the male spine? (cm and in)

58cm or
23in