Thorax, Sternum, Ribs Flashcards Preview

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Flashcards in Thorax, Sternum, Ribs Deck (24)
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1
Q

what is the rib cage made up of

A

Sternum and ribs

2
Q

what does the thorax do

A

offers protection to vital structures

3
Q

what is the thoracic inlet?

A

superior opening (small)

4
Q

what is thoracic outlet?

A

inferior opening, wide

5
Q

what closes the thoracic outlet?

A

diaphragm

6
Q

what are the 3 main parts to the sternum

A

manubrium, body and xiphoid process

7
Q

what is another name for the sternum

A

breastbone

8
Q

what 3 landmarks are found at the manubrium

A

1) jugular (interclavicular) notch
2) clavicular notch
3) notch for 1st rib

9
Q

what should one watch for when doing CPR compressions. why?

A

Xiphoid process because it is very fragile

10
Q

how many ribs are there

A

12 pairs (24 ribs)

11
Q

the ribs articulate posteriorly with ______ vertebrae

A

thoracic

12
Q

the ribs articulate anteriorly with ______

A

hyaline/costal cartialge

13
Q

what are the 2 classifications of ribs

A

1) true ribs

2) false ribs

14
Q

true ribs

A
  • ribs 1-7

- costal cartilage articulates directly with sternum

15
Q

False ribs

A
  • ribs 8-12

- articulate with costal cartilage of rib above (rib 8-10) or with nothing at all (11-12)

16
Q

what is the name given to ribs 11 and 12. why?

A

Floating ribs - lack of anterior articulation

17
Q

what is the head of the rib rounded for?

A

articulation with thoracic vertebrae

18
Q

demifacets of the ribs are for articulation with what

A

thoracic vertebrae

19
Q

where is the tubercle of the rib located

A

just distal to the head of the rib

20
Q

where does the body/shaft of ribs curve

A

anteriorly

21
Q

4 sternocostal articulations

A

1) rib 1 - below clavicular notch
2) rib 2 - sternal angle
3) ribs 3-6 - body of sternum
4) rib 7 - xiphoid process

22
Q

how many synovial joints per rib?

A

3

23
Q

what are the 2 articulations for the costovertebral joints?

A

rib head articulates with demifacets of adjacent thoracic vertebra, tubercle articulates with costal facet on the transverse process of vertebra

24
Q

what is the specific name for the tubercle articulation with costal facet on the transverse process of vertebra

A

costrotransverse joint