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Human Anatomy Lab > Axial Skeleton 2 > Flashcards

Axial Skeleton 2 Flashcards

1
Q

How many bones in the vertebral column? How many in each division?

A

26
cervical-7
thoracic-12
lumbar-5
sacral-5 fused bones
coccygeal-3-5 fused bones

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2
Q

the strong outer layer of fibrocartilage of invertebral discs

A

annulus fibrosus

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3
Q

the inner gelatinous core of invertebral discs

A

nucleus polposus

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4
Q

What are primary curvatures?

A

outwardly bowing curves that are retained from the fetal position (thoracic & sacral)

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5
Q

What are secondary curvatures?

A

inward bowing curves that bring the spine into an overall upright position (cervical & lumbar)

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6
Q

What is the vertebral canal formed by?

A

successive vertebral foramina

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7
Q

What bone is this?

A

atlas; C1

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8
Q

What part is this?

A

superior articular facet

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9
Q

What part is this?

A

inferior articular facet

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10
Q

What part is this?

A

lateral mass

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11
Q

What part is this?

A

facet for dens

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12
Q

What part is this?

A

posterior tubercle

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13
Q

What part is this?

A

transverse foramen

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14
Q

What part is this?

A

anterior arch

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15
Q

What part is this?

A

posterior arch

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16
Q

What part is this?

A

transverse process

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17
Q

What part is this?

A

vertebral foramen

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18
Q

What part is this?

A

odontoid process (dens)

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19
Q

What part is this? Function?

A

transverse foramen; openings that transmit the vertebral arteries

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20
Q

What part is this?

A

superior articular facet

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21
Q

What part is this?

A

transverse process

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22
Q

What part is this?

A

body (centrum)

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23
Q

What part is this?

A

spinous process

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24
Q

What part is this?

A

inferior articular process

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25
Q

What part is this?

A

lamina

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26
Q

What bone is this?

A

axis; C2

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27
Q

What kind of vertebra is this?

A

cervical

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28
Q

What part is this?

A

body (centrum)

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29
Q

What part is this?

A

bifid spinous process

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30
Q

What part is this?

A

inferior notch

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31
Q

Which vertebra have superior costal demifacets?

A

T2-T9

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32
Q

Which vertebra have inferior costal demifacets?

A

T1-T9

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33
Q

Which vertebra have full costal facets?

A

T1, T10, T11, T12

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34
Q

Define costal facet

A

articulations with the head of the ribs

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35
Q

Define transverse costal facet

A

articulation site for tubercle of rib

36
Q

What part is this?

A

superior articular facet

37
Q

What part is this?

A

superior costal demifacet

38
Q

What part is this?

A

inferior costal demifacet

39
Q

What part is this?

A

transverse costal facet

40
Q

What part is this?

A

superior articular process

41
Q

What part is this?

A

body (centrum)

42
Q

What part is this?

A

inferior notch

43
Q

What part is this?

A

transverse process

44
Q

What part is this?

A

inferior articular process

45
Q

What part is this?

A

spinous process

46
Q

What part is this?

A

pedicle

47
Q

What part is this?

A

lamina

48
Q

What part is this?

A

vertebral arch

49
Q

What kind of vertebra is this?

A

thoracic

50
Q

What part is this?

A

full costal facet

51
Q

What kind of vertebra is this?

A

lumbar

52
Q

What part is this?

A

pedicle

53
Q

What part is this?

A

lamina

54
Q

What part is this?

A

superior articular process

55
Q

What part is this?

A

superior articular facet

56
Q

What part is this?

A

sacral canal

57
Q

What part is this?

A

anterior sacral foramen

58
Q

What part is this?

A

posterior sacral foramen

59
Q

What part is this?

A

sacral hiatus

60
Q

What landmark is this?

A

sacral promontory

61
Q

What landmark is this?

A

ala

62
Q

What landmark is this?

A

transverse ridges (lines)

63
Q

What landmark is this?

A

median sacral crest

64
Q

What landmark is this?

A

lateral sacral crest

65
Q

What landmark is this?

A

auricular surface of sacrum

66
Q

What landmark is this?

A

coccyx

67
Q

What landmark is #2?

A

jugular notch

68
Q

What part is #1?

A

manubrium

69
Q

What part is #4?

A

body

70
Q

What part is #5?

A

xiohoid process

71
Q

What landmark is #3?

A

sternal angle

72
Q

Which are true ribs and why?

A

Ribs 1-7 direct costal cartilage attachments to sternum

73
Q

Which are false ribs and why?

A

Ribs 8-12, indirect or non-existent costal cartilage attachment to ribs

74
Q

Which are floating ribs and why?

A

Ribs 11 & 12, no costal cartilage attachments to sternum

75
Q

What is #6?

A

true ribs

76
Q

What is. #7?

A

non-floating false ribs

77
Q

What is #8?

A

floating false ribs

78
Q

What is #9? What is it formed by?

A

costal margin; costal cartilages of ribs 7-10

79
Q

What part is this?

A

head

80
Q

What part is this?

A

neck

81
Q

What part is this?

A

articular tubercle

82
Q

What landmark is this?

A

shaft

83
Q

What landmark is this?

A

costal groove

84
Q

What is this?

A

costal angle

85
Q

Right or left rib?

A

Right

86
Q

Right or left rib?

A

Left

87
Q

What part is this?

A

intervertebral foramen

Human Anatomy Lab (20 decks)

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