There are many literatures that are related with cleavage lines or dermal supplies. But relationt of both are almost unknown. So I made cleavage lines on eight Japanese cadaver's faces. Then I made various sectional specimens according to cleavage lines or facial midline on each nasolabial, mental and lower labial regions of the skin.
1) On shallow and deep dermis of every regions, there were so many vessels arranged to vertical direction for surface of skin. And they formed so-called subdermal and dermal plexus on the parts.
2) On nasolabial region, vessels forming subdermal and dermal plexus were arranged to the same direction with regular cleavage lines.
3) On mental region, vessels forming subdermal and dermal plexus were arranged to the same direction with irregular cleavage lines.
4) On lower labial region, vessels forming subdermal plexus were arranged to the same direction with irregular cleavage lines, but vessels forming dermal plexus were arranged to the same direction with regular cleavage lines.