THORAX

Question 1

Typical Ribs

Answer 1

Ribs 3 - 9
Superior and inferior facets, with a crest in between
Weak posterolateral bend
Head, Neck (Narrow and flat), Tubercle, Costal angle (lateral attachment to Iliocostalis muscle) and groove
Costovertebral joint with vertebral bodies
Costotransverse joint with vertebral transverse processes
Ribs 4 - 9 are frequently fractured

Question 2

Atypical Ribs

Answer 2

Ribs 1, 2, 10, 11, 12

Question 3

Typical Ribs CLINICAL

Answer 3

Typically used for autologous bone grafts

Question 4

Rib 1

Answer 4

Wide and flat, 60 deg with the horizontal
1 articular facet for T1 vertebra on head
Tubercle and costal angle are in same plane
Grooves for subclavian vessels, serratus anterior muscle, scalene anterior and scalene medius muscles
Forms a boundary to scalene triangle

Question 5

Rib 2

Answer 5

Has tuberosity for serratus anterior and scalene posterior muscle attachments

Question 6

Rib 10

Answer 6

No attachment to sternum
1 articular facet

Question 7

Rib 11

Answer 7

No attachment to sternum
No neck
No tubercle
1 articular facet

Question 8

Rib 12

Answer 8

No neck or tubercle
1 articular facet
Forms boundary to superior lumbar triangle and renal angle

Question 9

Special costal triangle

Answer 9

Lateral border: Levatores costarum
Medial border: Inter-transverse ligament
Inferior border: Lateral costo-transverse ligament
Dorsal rami of spinal nerve goes through it.

Question 10

Costo-Vertebral Joint

Answer 10

2 demi-facets on vertebral body which articulate with the head of the same rib (superior facet) and the head of an inferior rib (inferior facet)