DorfmanNS201
Chicken: 24 Hours and 56 Hours
The chicken at 24 hours looks more like a primitive animal than a baby chicken. Yet only a few hours after the growing process begins a few vital parts are already noticeable. From the slide, you can see the primitive streak, which eventually turns into the three levels of endoderm, mesoderm, and ectoderm. Another vital part that is beginning to form and can be visible is the forebrain, which eventually turns into the brain of the chicken. The chicken progresses quickly and starts to look more like a chicken at 56 hours. One interesting fact about the chick at 56 hours is that human embryos look almost exactly the same at this stage in development. The optic cup begins to form, which is where the eyes eventually are placed. At this point in development, the chick’s heart becomes to be more visible.
Chicken: 24 Hours and 56 Hours
The chicken at 24 hours looks more like a primitive animal than a baby chicken. Yet only a few hours after the growing process begins a few vital parts are already noticeable. From the slide, you can see the primitive streak, which eventually turns into the three levels of endoderm, mesoderm, and ectoderm. Another vital part that is beginning to form and can be visible is the forebrain, which eventually turns into the brain of the chicken. The chicken progresses quickly and starts to look more like a chicken at 56 hours. One interesting fact about the chick at 56 hours is that human embryos look almost exactly the same at this stage in development. The optic cup begins to form, which is where the eyes eventually are placed. At this point in development, the chick’s heart becomes to be more visible.