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Respiratory system > Sternum and ribs > Flashcards

Sternum and ribs Flashcards

1
Q

What is the sternum commonly known as?

A

Breastbone

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2
Q

What type of bone is the sternum?

A

Flat bone

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3
Q

What part of the thorax is the sternum located in?

A

Middle of anterior thorax

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4
Q

What are the parts of the sternum?

A

Manubrium of sternum

Body of sternum

Xiphoid process

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5
Q

What is located between the different parts of the sternum in a child?

A

Cartilage

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6
Q

What happens to the cartilage located between the different parts of the sternum in an adult?

A

It ossifies to bone

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7
Q

What is the most superior part of the sternum?

A

Manubrium of sternum

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8
Q

What shape is the manubrium of the sternum?

A

Trapezoid shape

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9
Q

What is the shape of the superior border of the manubrium?

A

Concave depression

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10
Q

What is the name of the concave depression in the superior border of the manubrium?

A

Jugular notch

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11
Q

What is the shape of the superior border of the manubrium located laterally to the jugular notch?

A

Concave depressions

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12
Q

What do the concave depressions located laterally to the jugular notch do?

A

Articulate with sternal facet of clavicle

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13
Q

What is located on the lateral border of the manubrium?

A

Superiorly a facet

Inferiorly a demi facet

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14
Q

What does the facet on the lateral border of the manubrium do?

A

Articulates with 1st costal cartilage

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15
Q

What does the demifacet on the lateral border of the manubrium do?

A

Articulates with part of 2nd costal cartilage

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16
Q

What is the inferior border of the manubrium do?

A

Articulates with superior border of body of sternum

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17
Q

What is the name of the articulation between the manubrium and body of sternum?

A

Sternal angle

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18
Q

What is located laterally to the sternal angle?

A

2nd costal cartilage

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19
Q

What is the largest part of the sternum?

A

Body

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20
Q

What is located on the lateral border of the body of the sternum?

A

Facets

Demifacets, superiorly and inferiorly

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21
Q

What do the facets on the lateral border of the body of the sternum do?

A

Facets articulate with costal cartilages of ribs 3-6

22
Q

What do the demifacets on the lateral border of the sternum do?

A

Demifacets articulate with part of costal cartilages of ribs 2 and 7

23
Q

What shape is the body of the sternum?

A

Rectangular

24
Q

What does the inferior border of the body of the sternum do?

A

Articulates with xiphoid process of sternum

25
Q

What is the smallest part of the sternum?

A

Xiphoid process

26
Q

What is the most inferior part of the sternum?

A

Xiphoid process

27
Q

What spinal level is the xiphoid process located at?

A

T10 vertebrae

28
Q

What part of the bony thorax are the ribs located in?

A

Lateral walls

29
Q

How many ribs are there?

A

12

30
Q

What does a typical rib consist of?

A

Head

Neck

Body

31
Q

What is located on the head of the rib?

A

Superior articular facet

Inferior articular facet

32
Q

What does the superior articular facet on the head of the rib articulate with?

A

Articulates with inferior demifacet of above vertebra

33
Q

What does the inferior articulate facet on the head of the rib articulate with?

A

Articulates with superior demi-facet of vertebra below

34
Q

What is the name of the joint between the articular facets on the head of the rib and the demifacets on the vertebrae?

A

Costovertebral joint

35
Q

What does the neck of the rib do?

A

Connects the head to the rest of the body

36
Q

What is located between the junction of the head and neck of the rib?

A

Tubercle

with facet

37
Q

What does the facet on the tubercle of the rib do?

A

Articulates with transverse process of corresponding vertebrae

38
Q

What is the name of the joint between the facet on the tubercle of the rib and the transverse process of the vertebra?

A

Costotransverse joint

39
Q

What is the body of the rib?

A

The flat but curved part of the rib

40
Q

What is located on the inferior surface of the rib?

A

Costal groove

41
Q

What is located in costal groove?

A

Neurovascular bundle

42
Q

What does the neurovascular bundle in the costal groove contain?

A

Intercostal artery, vein and nerve

43
Q

What do the costal cartilages of ribs 1-7 articulate with?

A

Sternum

44
Q

What do the costal cartilages of ribs 8-10 articulate with?

A

Join to costal cartilage of rib 7

45
Q

What do the costal cartilage of ribs 11-12 articulate with?

A

Nothing

46
Q

What are ribs 1-7 called? Why?

A

True ribs

Because their costal cartilage articulates with the sternum directly

47
Q

What are ribs 8-10 called? Why?

A

False ribs

Because their costal cartilage articulates with the costal cartilage of rib 7 and then the sternum indirectly

48
Q

What are ribs 11-12 called? Why?

A

Floating ribs

Because their costal cartilage doesn’t articulate with anything

49
Q

How many openings of the thorax are there?

A

Two

50
Q

What are the openings of the thorax? How are they named?

A

Superior thoracic aperture

Inferior thoracic aperture

based on their positions

51
Q

What is the superior thoracic aperture adjacent to?

A

Neck

52
Q

What is the inferior thoracic aperture adjacent to?

A

Abdomen

Respiratory system (32 decks)

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