Thoracic cage

Question 1

1) Head of rib

Answer 1

• the posterior end of a typical rib that articulates primarily with the costal facet on the body of the same numbered thoracic vertebra and to a lesser degree, with the costal facet located on the body of the next higher vertebra.

Question 2

2) tubercle of rib

Answer 2

• an eminence on the posterior surface at the junction of the neck and body of the rib, and nearer the lower than the upper border; articulates with the facet located on the transverse process of the same numbered vertebra.

Question 3

3) Costal Groove

Answer 3

• on the rib; a shallow groove found along the inferior margin of each rib; passageway for intercostal vessels and nerve

Question 4

4) True Ribs

Answer 4

ribs 1–7; directly articulate with the sternum with their costal cartilages

Question 5

5) False Ribs

Answer 5

• ribs 8-12; do not articulate directly with the sternum; the 8th, 9th, and 10th are connected to the 7th rib by cartilage.

Question 6

6) Floating Ribs

Answer 6

• the last two false ribs (11–12); do not articulate with the sternum at all

Question 7

7) Manubrium

Answer 7

• wider, superior portion of the sternum

Question 8

8) Corpus (body)

Answer 8

• middle, main portion of the sternum

Question 9

9) Xiphoid Process

Answer 9

• the inferior tip of the sternum

Question 10

10) Clavicular Notch

Answer 10

• on the manubrium; a shallow depression located on each side at the superior-lateral margins; site of the sternoclavicular joint

Question 11

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