- #1
sameeralord
- 662
- 3
Hello everyone,
Capillaries are just a single layer of endothelial cells with no muscle tissue so how do these constrict? Thanks![Smile :smile: :smile:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
Capillaries are just a single layer of endothelial cells with no muscle tissue so how do these constrict? Thanks