CVR 1

Question 1

where does the sternum lie?

Answer 1

anteriorly in the midline of the thoracic cage

Question 2

manubrium

Answer 2

superior part
-superior border w notch =suprasternal (jugular) notch
->laterally artics w clavicle (collarbone) at sternoclavicular notch+first rib
->inferiorly artics w body of sternum at manub riosternal joint (/angle of Louis)

Question 3

Body

Answer 3

-inferior to manubrium
-artics w ribs 2-7
-2nd rib artics w sternum at sternal angle (inferior part of manubrium+superior part of body)
-inferiorly artics w xiphoid process

Question 4

xiphoid process (/xiphisternum)

Answer 4

-inferior to body
-small + variable in shape
-7th rib artics inferior part of sternum and superior part of this

Question 5

how many ribs

Answer 5

12

Question 6

anterior parts of the ribs are composed of

Answer 6

costal cartilage

Question 7

The ribs articulate with their costal cartilages at ……… joints.

Answer 7

costochondral