Template:Limb skeleton mesenchyme-cartilage-bone table
From Embryology
| Horizons in which first appearance of first limb elements is usually found | |||
|---|---|---|---|
| Skeletal Element | Condensed Mesenchyme |
Cartilage | Bone |
| Humerus | xvi | xvi—xvii | xxi—xxii |
| Radius | xvi | xvii | xxi-xxiii |
| Ulna | xvi | xvii—xviii | xxii-xxiii |
| Hand | xvii | xvii—xxi | In fetus1and after birth |
| Femur | xvii | xvii—xviii | xxii-xxiii |
| Patella | xx | xxi | After birth |
| Tibia | xvii | xvii—xxiii | xxii—xxiii |
| Fibula | xvii | xxii-xviii | In fetus |
| Foot | xvii—xviii | xviii—xxiii or later | in fetus and after birth |
| 1 Intramembranous ossification at the tips of the distal phalanges of the hand may be in horizon xxiii. | |||
| Reference - O'Rahilly R. Gray DI. and Gardner E. Chondrification in the hands and feet of staged human embryos. (1957) Carnegie Instn. Wash. Publ. 611, Contrib. Embryol., 36: | |||
