I. 1st. Rib
  • Outline
    1. Short
    2. Sharply curved
    3. Flat
    4. No angle
    5. Not twisted
    6. No costal groove
  1. Post. End
    1. Head
    1. Single articular facet for body of T1
    2. Neck
    3. Tuberc.

  2. Body
    1. Anterosup. Surf.
    1. Groove for subclavian v.
    2. Tuberc. for ant. scalene m.
    3. Rough triangular area for serratus ant. m.
    4. Groove for subclavian a.
    5. Tuberosity for middle scalene m.
    2. Posteroinf. Surf.

  3. Ant. End
    1. Rough oval pits
    2. Tuberosity for subclavius m.

II. 2nd Rib

  • Outline
    1. Sharply curved
    2. 2 times longer than 1st rib
    3. Narrower than 1st rib
    4. Not twisted
    5. BodyÀÇ Ant. Surf.´Â Upwards & outwards
    6. Tuberosity for serratus ant. m.

III. 10th Rib

  • Outline
    1. Single facet on head
    2. Similar to typical rib

IV. 11th Rib

  • Outline
    1. Single facet on head
    2. No articular facet
    3. Small tuberc.
    4. Faint costal angle

V. 12th Rib

  • Outline
    1. Small & slender
    2. no angle, no goove, no tuberc.
    3. Single facet on head