The vaginal opening is the part of the vagina visible outside the body. People commonly describe the vagina as the general area of the female reproductive system. However, the vagina specifically ...

Listen to Story They worked out the cerebral architecture in a tissue sample The tissue sample was the size of a grain of sand It has over 200,000 cells including roughly 84,000 nerve cells ...

Excalidraw is great for sketching diagrams as part of a design process, but chances are that you have to redo those sketches for documentation. This tool is made to bridge those tasks. Download a ...