Variations in the structure of the jugular foramen of the human skull.
The jugular foramina were examined in 156 skulls. In 69% of cases the right was larger than the left and in 23% the left was larger, with the remainder being of equal size. An obvious dome caused by a superior jugular bulb was present bilaterally in 54%, on the right only in 30%, on the left only in 6% and was absent bilaterally in 10%. Of the 312 jugular foramina examined there was no evidence of an enlargement due to a superior jugular bulb in 28%.
Sturrock
R R
RR
Department of Anatomy, University of Dundee, Scotland.
D000717:Anatomy, Comparative; D044466:Asian People; D044383:Black People; D002508:Cephalometry; D006801:Humans; D044468:Native Hawaiian or Pacific Islander; D044469:Racial Groups; D012886:Skull / Q000033:anatomy & histology*; D044465:White People