Musculoskeletal system

Musculoskeletal system. Limb buds were first apparent at 10.5 DPC in 10 of 27 (37%) fetuses, and in the remaining 17 fetal animals, limb buds became apparent the following day (Figure 9). Individual hind- and forelimb digits became discernible at 15.5 DPC; femur length could be measured at this time as well (Figure 10).

Figure 10. Coronal image of fetal mouse (A) shows cross-section of femur (white arrow) at 15.5 DPC. Longitudinal view of fetal femur at 16.5 DPC (B) shows partially ossified femur shaft depicted by cursors. H, head; T, torso.

The spine first appeared as a faint echogenic line at 12.5 DPC. Ossification of the vertebral elements could be identified at 13.5 DPC and became progressively larger, more echogenic, and better defined daily (Figure 11). Ossification of the face and skull also became evident at 13.5 DPC, with good definition of the orbits and snout by 16.5 DPC (Figure 12). Rib ossification first became apparent at 15.5 DPC (Figure 11). If you were wondering about where best pharmacy to buy your drugs online can be found, it's finally time to stop wondering, At our canadian family pharmacy online, you are finally in charge of your own decisions, getting an opportunity to spend less money and get more efficiency at the same time, so just come by to see for yourself. 
 

Figure 11. Coronal views of fetal spine obtained at 12.5 DPC (A), 15.5 DPC (B), 16.5 DPC (C), and 17.5 DPC (D) show development of the spine. Spine is first identified as a faint echogenic line (arrows), with progressive subsequent ossification of the vertebral elements through the remainder of gestation.