Embryonic nerves and arteries

Nerves (green) associate with arteries (red) in the embryonic limb skin.

Image courtesy of National Heart Lung and Blood Institute (as a part of the NIH and U.S. Department of Health and Human Services). The source document is the Laboratory of Developmental Biology page in the NHLBI Division of Intramural Research Web site. http://dir.nhlbi.nih.gov/labs/ldb/sc/nerves.asp