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Skeletal System > Axial Skeleton > Flashcards

Axial Skeleton Flashcards

1
Q

Define Bone Marking

A

it’s unique structural feature of the bone, that serves a specific functional role.

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2
Q

What are 3 functional roles of bone marking?

A
  1. Projections that are sites of muscle and ligament attachment
  2. Surfaces that form ligaments
  3. Depressions & openings for blood vessels and nerves
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3
Q

ID the bone marking

A

Tuberosity:

Large rounded projection; may be roughened

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4
Q

ID the bone marking

A

Crest:

Narrow ridge of bone; usually prominent

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5
Q

ID the bone marking

A

Trochanter:

Very Large, blunt, irregularly shaped process (femur)

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6
Q

What is a Tubercle?

A

Small rounded projection or process

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7
Q

ID

A

lesser Terbercle

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8
Q

ID the bone marking

A

Epicondyle:

Raised area on or above a condyle

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9
Q

What is a Process?

A

Any body prominence

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10
Q

What is a head?

A

large smooth projection-fit into another bone marking

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11
Q

ID the bone marking

A

Facet

Smooth, nearly flat articular (joint) surface

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12
Q

ID the bone marking

A

Condyle

rounded projection; typically fit into a bone marking on another bone in order to form a joint.

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13
Q

What is a Foramen?

A

“hole”

round oval opening through a bone

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14
Q

What is a Meatus? (Highlighted in green)

A

Canal

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15
Q

What is a Fossa?

A

Shallow, basin like depression in a bone, often serving as an articular surface.

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16
Q

ID the bone marking indicated by the pointer

A

Supraorbital margin

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17
Q

ID the bone indicated by the pointer

A

Parietal Bone

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18
Q

ID the bone marking indicated by the pointer

A

Occipital Condyles

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19
Q

ID the bone marking indicated by the pointer

A

Foramen Magnum

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20
Q

Where do you find the foramen magnum?

A

In the occipital bone

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21
Q

What’s the function of the foramen magnum?

A

It’s the point which the spinal cord enters into the cranial cavity

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22
Q

ID the bone marking

A

Mastoid process

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23
Q

What is the structure highlighted by red and it’s function?

A

sternocleidomastoid muscle

Function: Prime mover of the head

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24
Q
A

External acoustic meatus

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25
Q
A

Tuberosity

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26
Q

Id the bone marking

A

Iliac Crest

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27
Q

ID the process highlighted in red

A

Styloid process

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28
Q

Function of styloid process?

A

Forms a point of attachment for the muscles that allow you to swallow

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29
Q

ID the region highlighted in green

A

Petrous Region

30
Q

Identify structure indicated by pointer 1

A

Jugular Foramen

31
Q

ID the structure indicated by 3.

A

Petrous region

32
Q

ID the structure indicated by 1

A

Epiphysis

33
Q

What type of bone makes up the epiphysis?

A

Spongy bone connective tissue

34
Q

What do you find in the nooks and crannies (epiphysis) of the spongy bone?

A

Red bone marrow

35
Q

What is the functional role of red bone marrow?

A

To make red blood cells, white blood cells, and platelets.

36
Q

ID the structure indicated by 3

A

Diaphysis

37
Q

ID the structure indicated by 12

A

Medullary Cavity

38
Q

ID the structure indicated by 12

A

Medullary Cavity

39
Q

What is the medullary cavity filled with?

A

Yellow bone marrow

40
Q

ID the structure indicated by the pointer

A

Articular cartilage

41
Q

ID the structure by the pointer

A

Nutrient foramen

42
Q

ID the structure indicated by 2

A

Concentric lamellae

43
Q

ID the structure indicated by 5

A

Osteon

44
Q

ID the structure indicated by 3; what it’s functional role?

A

Lacunae

Function: houses osteocytes

45
Q

ID the structure indicated by 10

A

Circumferential lamellae

46
Q

ID the structure indicated by 9

A

Periosteum

47
Q

ID the tissue

A

Compact bone connective tissue

48
Q

ID the tissue

A

Compact bone connective tissue

49
Q

ID the tissue

A

Spongy bone

50
Q

How many bones are in the Axial Skeleton?

A

80 bones

51
Q

How many bones are in the skull?

A

22 bones

52
Q

How many bones are classified as Cranial bones?

A

8 Bones

53
Q

ID the suture

A

coronal suture

54
Q

ID the suture

A

squamous suture

55
Q

ID the suture

A

Lambdoid

56
Q

What makes up the cranium?

A

parietal, temporal, frontal, occipital, sphenoid, ethmoid

57
Q

How many bones make up the facial?

A

14 bones

58
Q

ID the fossa

A

Anterior cranial fossa

59
Q

ID the fossa

A

Middle cranial fossa

60
Q

ID the fossa

A

Posterior cranial fossa

61
Q

What does the jugular foraman do?

A

It allows the jugular vein to exit the brain, and drain blood.

62
Q

ID the structure

A

Carotid foramen/canal

63
Q

ID the bone indicated by the pointer

A

Ethmoid bone

64
Q

ID the bone highlighted in yellow

A

Sphenoid

65
Q

ID the bone marking by the marking

A

Sella Turcica

66
Q

ID the bone marking

A

Optic foramen/canal

67
Q

ID the bone marking

A

crista galli

68
Q

ID bone marking by the pointer

A

Olfactory foramen

69
Q

ID the bone marking highlighted in green

A

Perpendicular plate

70
Q

ID the structure indicated by the pointer

A

Middle Nasal Concha

71
Q

ID the region indicated by 2

A

interanal Acoustic Meatus

Skeletal System (6 decks)

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