Thorax, Sternum, Ribs

Question 1

what is the rib cage made up of

Answer 1

Sternum and ribs

Question 2

what does the thorax do

Answer 2

offers protection to vital structures

Question 3

what is the thoracic inlet?

Answer 3

superior opening (small)

Question 4

what is thoracic outlet?

Answer 4

inferior opening, wide

Question 5

what closes the thoracic outlet?

Answer 5

diaphragm

Question 6

what are the 3 main parts to the sternum

Answer 6

manubrium, body and xiphoid process

Question 7

what is another name for the sternum

Answer 7

breastbone

Question 8

what 3 landmarks are found at the manubrium

Answer 8

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

Question 9

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

Answer 9

Xiphoid process because it is very fragile

Question 10

how many ribs are there

Answer 10

12 pairs (24 ribs)

Question 11

the ribs articulate posteriorly with ______ vertebrae

Answer 11

thoracic

Question 12

the ribs articulate anteriorly with ______

Answer 12

hyaline/costal cartialge

Question 13

what are the 2 classifications of ribs

Answer 13

1) true ribs

2) false ribs

Question 14

true ribs

Answer 14

• ribs 1-7

- costal cartilage articulates directly with sternum

Question 15

False ribs

Answer 15

• ribs 8-12

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

Question 16

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

Answer 16

Floating ribs - lack of anterior articulation

Question 17

what is the head of the rib rounded for?

Answer 17

articulation with thoracic vertebrae

Question 18

demifacets of the ribs are for articulation with what

Answer 18

thoracic vertebrae

Question 19

where is the tubercle of the rib located

Answer 19

just distal to the head of the rib

Question 20

where does the body/shaft of ribs curve

Answer 20

anteriorly

Question 21

4 sternocostal articulations

Answer 21

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

Question 22

how many synovial joints per rib?

Answer 22

3

Question 23

what are the 2 articulations for the costovertebral joints?

Answer 23

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

Question 24

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

Answer 24

costrotransverse joint