$34,750. The median annual wage for surgical technologists was $41,790 in May 2012. The median wage is the wage at which half the workers in an occupation earned more than that amount and half earned less. The lowest 10 percent earned less than $29,710, and the top 10 percent earned more than $60,240.he wage at which half of the workers in the occupation earned more than that amount and half earned less. Median wage data are from the BLS Occupational Employment Statistics survey. In May 2012, the median annual wage for all workers was $34,750.
A twisting cord of blood vessels, called the umbilical (um-bilâi-kal) cord, connects the embryo to the placenta. The best intensive care units found in modern hospitals hardly rival the placentaâs life-support capabilities. The yolk sac is another structure vitally important during early development.
A structure called the yolk sac forms from the cells of the hypoblast.2 The yolk sac is a structure that provides nutrients from the mother to the embryo before the placenta is ready to function. A membrane called the amnion forms from the epiblast. The epiblast also gives rise to the entire head and body of the embryo.