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CRRAB I - Week 1 > Anterior Thorax > Flashcards

Flashcards in Anterior Thorax Deck (24)
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0

Which ribs are "True ribs"?

1-7

1

Which ribs are "False ribs"

8-12

2

Which ribs are the "Floating ribs"?

13, 14

3

What type of joint is the costovertebral joint?

Plane synovial joint

4

What type of joint is the costotransverse joint?

plane synovial joint

5

What are the boundaries of the superior thoracic aperture/thoracic outlet?

T1, Rib 1, manubrium

6

What structures pass through the thoracic outlet?

Brachial plexus, subclavian vessels

7

What are the boundaries of the inferior thoracic aperture?

Body of T12, costal margin, xiphoid process

8

What rib connects at the sternal angle?

Rib 2 connects here

9

What important landmarks are behind the sternal angle?

Bifurcation of trachea
Aortic arch
Superior border of pulmonary trunk

SVC enters pericardium
2nd intercostal space

10

What is the most common fracture point of the ribs?

Angle

11

Intercostal veins, arteries, and nerves rest in what rib structure?

Costal groove

12

What does the rib's tubercle articulate with?

Transverse process of vertebrae

13

What two vertebrae does rib 8 articulate with?

T7 and T8

14

Hands in the pockets represent the striation of which intercostal muscle group?

External intercostals

15

Arms crossed on shoulders represent striations of which intercostal muscle group?

Internal intercostals

16

What is the role of external intercostals?

Elevate inferior rib for forced inspiration

17

What is the role of internal intercostal muscles?

Depress ribs during forced expiration

18

What do the internal intercostals become as you proceed posteriorly across the thoracic cavity?

Internal intercostal membrane

19

What is the role of the innermost intercostals?

Same as internal intercostals

20

What artery runs adjacent to the sternum and supplies the intercostal space with blood vessel branches?

Internal thoracic artery

21

What is the internal thoracic artery a branch of?

Subclavian artery

22

What does the interior thoracic artery branch bifurcate into?

Superior epigastric artery and musculophrenic artery

23

Which nerves supply the abdominal muscles?

T7-12