Basic - Primitive Heart Tube: Difference between revisions
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The heart is the first organ to function within an embryo. It starts to function at the beginning of the fourth week when the nutritional and oxygen requirements of the growing embryo can no longer be met by diffusion from the placenta. | The heart is the first organ to function within an embryo. It starts to function at the beginning of the fourth week when the nutritional and oxygen requirements of the growing embryo can no longer be met by diffusion from the placenta. | ||
The heart initially forms from two tubes located bilaterally (on either side) of the trilaminar embryo in the cranial (head) region. These first images show these primitive tubes developing in an embryo approximately 18 days after fertilization. | The heart initially forms from two tubes located bilaterally (on either side) of the trilaminar embryo in the cranial (head) region. These first images show these primitive tubes developing in an embryo approximately 18 days after fertilization. | ||
<Flowplayer height="540" width="720" autoplay="true">Heart folding 002.flv</Flowplayer> | |||
Revision as of 13:15, 12 October 2009
| Begin Basic | Primitive Heart Tube | Embryonic Heart Divisions | Vascular Heart Connections |
| Cardiac Embryology | Begin Basic | Begin Intermediate | Begin Advanced |
File:HeartILP draft primitive heart tube.jpg
The developing blood vessels and heart tube can be seen in an embryo at approximately 18 days
The heart is the first organ to function within an embryo. It starts to function at the beginning of the fourth week when the nutritional and oxygen requirements of the growing embryo can no longer be met by diffusion from the placenta. The heart initially forms from two tubes located bilaterally (on either side) of the trilaminar embryo in the cranial (head) region. These first images show these primitive tubes developing in an embryo approximately 18 days after fertilization.
<Flowplayer height="540" width="720" autoplay="true">Heart folding 002.flv</Flowplayer>
