Skeletal System Flashcards

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1
Q

Parts of skeletal system

A

Bones, Joints, Cartilages, Ligaments

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2
Q

Two divisions of skeletal system

A

Axial skeleton, Appendicular skeleton

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3
Q

axial skeleton consist:

A

skull, ribs, vertebra

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4
Q

Appendicular skeleton consist:

A

pelvis, extremities

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5
Q

Function of the bones

A
  • support of the body
  • protection of soft organs
  • storage of minerals and fats
  • blood cell formation
  • movement due to attached skeletal muscle
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6
Q

Bones in adult skeleton

A

206 bones

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7
Q

Types of bone tissue

A

Compact bone, Spongy bone

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8
Q

Homogeneous

A

Compact bone

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9
Q

Small needle like pieces of bone

A

Spongy bone

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10
Q

Classification of bones on the basis of shape

A

Long bones, Short bones, Flat bones, Irregular bones

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11
Q

Typically Longer than wide

A

Long bones

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12
Q

Have a shaft with heads at both ends

A

Long bones

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13
Q

Long bones contains of what types of bone tissue

A

Compact bone

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14
Q

Example of long bones

A

Femur, Humerus

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15
Q

Generally cube shape

A

Short bones

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16
Q

Short bones contains what type of bone tissue

A

Spongy bone

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17
Q

Example of short bones

A

Carpals, Tarsals

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18
Q

Thin, flattened usually curved

A

Flat bones

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19
Q

Thin layer of compact bone around a layer of spongy bone

A

Flat bones

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20
Q

Example of flat bones

A

skulls, ribs, sternum

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21
Q

Irregular in shape

A

Irregular bones

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22
Q

Do not fit into other bone classification categories

A

Irregular bones

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23
Q

Example of irregular bones

A

vertebrae, hips

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24
Q

2 parts of a long bone

A

Diaphysis, Epiphysis

25
Q
  • shaft
  • composed of compact bone
A

Diaphysis

26
Q
  • ends of the bone
  • composed mostly of spongy bone
A

Epiphysis

27
Q

Structures of a long bone

A

Articular cartilage, Medullary cavity

28
Q

Covers the external surface of the epiphyses

A

Articular cartilage

29
Q

Made of hyaline cartilage

A

Articular cartilage

30
Q

Decreases friction at joint surfaces

A

Articular cartilage

31
Q

Cavity of the shaft

A

Medullary cavity

32
Q

Contains yellow marrow in adult bones

A

Medullary cavity

33
Q

Contains red marrow (for blood cell formation) in infants

A

Medullary cavity

34
Q

areas where cartilage remains

A
  • bridge of the nose
  • parts of ribs
  • joints
35
Q

During development, much of this cartilages is replaced by ____.

A

Bone

36
Q

In embryos, the skeleton is primarily____________.

A

Hyaline cartilage

37
Q

allows for growth of long bone during childhood

A

Epiphyseal plates

38
Q

Older Cartilage becomes _____.

A

ossified

39
Q

Bones grow in what two direction

A

Length, width

40
Q

Bones are ______ and _______ until growth stops

A

remodeled and lengthened

41
Q

A break in a bone

A

Bone fractures

42
Q

Types of bone fractures

A

Closed fracture (simple), Open fracture (compound)

43
Q

Break that does not penetrate the skin

A

Closed fracture

44
Q

Broken bone penetrate through the skin

A

Open fracture

45
Q

Bone fractures are treated by _______ and ______.

A

reduction and immobilization

46
Q

Type of fractures

A

comminuted, compression, depressed, impacted, spiral, greenstick

47
Q

Bones breaks into many fragments

A

Comminuted

48
Q

Bone is crushed

A

Compression

49
Q

Broken bone portion is pressed inward

A

Depressed

50
Q

Broken bone ends are forced into each other

A

Impacted

51
Q

Ragged break occurs when excessive twisting forces are applied to a bone

A

Spiral

52
Q

Bone breaks incompletely much in the way a green twig breaks

A

Greenstick

53
Q

Forms the longitudinal part of the body

A

Axial skeleton

54
Q

3 parts of axial skeleton

A

Skull, vertebral column, bony thorax

55
Q

2 set of skull bones

A

Cranium, facial bones

56
Q

Bone are joined by _____

A

sutures

57
Q

Only the ____ is attached by a freely movable joint

A

mandible

58
Q

The only bone that does not articulate with other bone

A

Hyoid bone

59
Q

Serves as a moveable base for the tongue

A

Hyoid bone