Thorax

Question 1

Thoracic Cage

Answer 1

-includes: vertebrae, ribs, sternum, and costal cartilage

Question 2

Sternum has three fused bones:

Answer 2

1. Manubrium
2. Body
3. Xiphoid Process

Question 3

Ribs

Answer 3

-all ribs go well with corresponding vertebrae
-7 pairs true ribs attach to sternum
-3 pairs of false ribs not attached to sternum but connect to ribs above them
-2 pairs of false ribs do not attach to anything that’s anterior

Question 4

Important Features of Ribs

Answer 4

-head is the end that meets with vertebrae
-costal angle is the sharp turn of the rib
-costal groove: passageway for nerves and blood
-body: major part of rib