Template:Limb skeleton mesenchyme-cartilage-bone table: Difference between revisions
From Embryology
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! colspan= | ! colspan=4|Horizons in which first appearance of first limb elements is usually found | ||
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Revision as of 18:38, 5 June 2016
Horizons in which first appearance of first limb elements is usually found | |||
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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. | |||
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: |