insertion (in-ser´shun)

1. A putting in. 2. The attachment of a muscle to the more movable part of the skeleton, as distinguished from origin. 3. In dentistry, the intraoral placing of a dental prosthesis. 4. Intrusion of fragments of any size from molecular to cytogenetic into the normal genome. [L. insertio, a planting in, fr. inserto, -sertus, to plant in]
parasol i. velamentous i
velamentous i. a form of i. of the fetal blood vessels into the placenta, in which the vessels separate before reaching the placenta and develop toward it in a fold of amnion, somewhat like the ribs of an open parasol.parasol i;


Browse Medical References:

[A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M]
[N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Y] [Z]