- Intimal cushion
The intimal cushion is smooth muscle in the center of arteries that paradoxically keep the artery patent. It is present in
Helicine arteries of penis and in the patentductus arteriosus [ [http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=1626120 The paradoxical patent ductus arteriosus ] ]References
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