View allAll Photos Tagged Embryo
The chick embryo at 24 hours after conception seems very simple, but is an amazing example of the collaborative aspects of development. At this early stage, the foregut is evident, as is the notochord and somite. The notochord is a flexible form that provides support for the form when it is in primitive stages of development. The somites shown in the diagram above are masses of mesoderm that appear on either side of the neural tube and eventually conceptualize into skeletal muscle. So early in life, it is astonishing that all of these parts work together to start the process of development.
Eastern narrowmouth toads, and a few grey tree frogs, were calling from a roadside gutter near my house after a big rain two days ago. Yesterday there were egg masses all over one end of a little pool in the gutter. I believe they are from the Narrowmouth toads. I'm going to try to rear a few--the embryos have already changed a lot.
Update 8/29/09
I had originally thought these were Narrowmouth toads, Gastrophryne carolinensis, but my one transforming tadpole on 8/29/09 is clearly a Gray Treefrog, Hyla chrysoscelis. (This individual, unfortunately, died right as it was transforming, but the species is clear.)
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Three individuals of Macroscopic Solutions, LLC captured the images in this database collaboratively.
Contact information:
Mark Smith M.S. Geoscientist
mark@macroscopicsolutions.com
Daniel Saftner B.S. Geoscientist and Returned Peace Corps Volunteer
daniel@macroscopicsolutions.com
Annette Evans Ph.D. Student at the University of Connecticut
annette@macroscopicsolutions.com
Embryos collected from a black tip shark. Black tip sharks reproduce by a method called placental viviparity. This means the embryos gather nutrients from the mother through a placenta and the females give birth to live, free-swimming young. The gestation period for black tip sharks is approximately 10-12 months and females typically give birth to 1-10 pups.
A vitamin A-deficient quail embryo. Without vitamin A, the heart fails to develop an inflow track, which it
needs to join the cardiovascular system. The scientists can restore
normal development by adding vitamin A to the embryos.
Zebrafish (Danio rerio) embryo about 24 hours after fertilization. Visible are the chorion surrounding the embryo, yolk, somites, chorda, and brain and eye vesicles.
Note the brain vesicles in the head and the eye. Developmental biology lab - chicken embryo anatomy.
Coupe transversale effectuée dans un embryon de souris, montrant au milieu la moelle épinière, avec en son centre un canal bordé par des cellules (mauve foncé - voir E_005) ; de chaque côté, ventralement, deux masses mauves représentent des ganglions nerveux (x). Autour de la moelle, on voit 3 masses cartilagineuses hyalin (= à l'origine des futures vertèbres). Les autres structures de la coupe sont surtout du mésenchyme et du tissu musculaire (haut de l'image).
- Afin de ne pas surcharger les images, celles-ci ne comportent qu'un minimum d'annotations, voire aucune. Pour plus de détails ou précisions, référez-vous à la littérature spécialisée ou contacter Franck Genten : fgenten@gmail.com
- Site internet : histologie-histology.be
- Toutes les images originales HR sont disponibles sans annotations
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Cross section of mouse embryo, showing in the middle the spinal cord, with a the spinal canal lined by ependymal cells at the center (dark purple - see E_005); on each side, ventrally, two rounded masses (x) represent ganglia. Around the spinal cord, one can see three cartilaginous masses (hyaline cartilage). The other structures are mostly mesenchyme and muscle tissue (top of the image).
- In order not to overload the images, the latter do not contain any annotations, or the bare minimum. For more information or details, please refer to specialized literature or contact Franck Genten : fgenten@gmail.com
- Website : histologie-histology.be
- All the original pictures HR are available without annotations
- If you notice any mistake in the English text, please let me know. Thank you.
It seems to be taking so long for them to hatch. Every day i think "today could be the day". So far it has not been that day. I am currently hoping that tomorrow is the day they hatch. *fingers crossed*.
Life embryo
Paint on canvas
Carly Sheil
I wanted to portray both security and also a sense of insecurity in this piece, as though the girl was in a protective womb yet had to curl up into herself to feel safe. I felt that the womb had to be green instead of red because it was cold and still living, almost like a plant, whereas her, and her ribbons are warm colors, to bring them to stand out and show their difference from the harsh, yet safe, surrounding womb. These insecurities are also portrayed in her almost nakedness.
She has alien eyes because she isn’t quite human, or doesn’t feel as such. She is not a part of this safe haven and this reflects not only in her coloration, but in her eyes as well. A womb generally matches its occupant, red walls to a flesh toned fetus, which is the norm. I chose red and green because they contrast each other and bring each other out. They are the only colors I chose and thus stand out more.
The red ribbons, I like to feel, represent the string of fate; a long, red cord that connects someone with their destiny and future mate. Hers is twisting around her, the path is untraceable and this leads to further confusion.