Quicktime Movie - Embryo stage 14

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• Carnegie Stage 14 Surface Movie

<Flowplayer height="475" width="600" autoplay="true">Stage14_model3.flv</Flowplayer>

Stage 14 Embryo Movie to be updated to quicktime version. This is a rotating model of the Stage 14 embryo. The animation begins with the right hand side view and rotates ventrally. Firstly, note the curvature of the embryo and the relative proportions of the head and body. Next, identify the following visible external features some of which represent the growth and development of internal structures. sensory placodes pharyngeal arches dorsal neural tube bulge somite bulges upper and lower limb buds heart bulge liver bulge mesonephric ridges umbilical stalk Links: MP4 version | Carnegie stage 14 | Modern Models | Embryology Models | Movies

The stage 14 model shows the embryo at about the midpoint of embryonic development when the external surface has not yet formed the adult anatomy and has a number of transient structures that are remodelled through the later embryonic stages. It therefore provides an ideal teaching model for demonstrating features such as sensory placodes, pharyngeal arches, limb buds, axial skeleton development, heart and liver surfaces bulges and the umbilicus. The lefthand labelled drawing is by Mall showing a 7 mm embryo.