Woźniak W, Bruska M
Department of Anatomy, University School of Medical Sciences, Poznań, Poland.
Folia Morphol (Warsz). 2006 May;65(2):136-9.
The length of the humerus was measured in 69 staged human embryos at developmental stages 18-23 (7 and 8 weeks). It was found that the length of the humerus increases from 2.0 mm at stage 18 to 5.4 mm at stage 23. There were slight variations at certain of the stages investigated. Asymmetry between limb lengths was not found during the embryonic period under examination.
