Ribs

Question 1

Head

Answer 1

the swollen part of the rib

Question 2

Neck

Answer 2

the short segment between the head and the rib’s articulation with the transverse process of the thoracic vertebrae

Question 3

Tubercle

Answer 3

Located on the posteroinferior corner of each rib

Question 4

Shaft

Answer 4

curved, tapering segment between the tubercle and the rib’s distal end

Question 5

Coastal groove

Answer 5

groove along the medial side of the inferior edge of the rib shaft

Question 6

Angle

Answer 6

the sharp curve in the bone lateral to the tubercle

Question 7

Sternal end

Answer 7

the anterior (ventral) end of the shaft

Question 8

Cranial (upper) edge

Answer 8

blunt, smooth and convex in most ribs

Question 9

Cranial (lower) edge

Answer 9

sharp, with a coastal groove on the medial surface in most ribs

Question 10

Siding first rib

Answer 10

head and neck point inferiorly and the superior surface bears grooves when in correct anatomical position

Question 11

Siding other ribs

Answer 11

the heads point towards the midline and the tubercles are inferior
Cranial edge is thicker and blunter than the grooved, sharp inferior edge

Question 12

Additional siding method for 12th rib

Answer 12

inner surface faces superiorly