Ven´tral stalk. An embryonic process which is the rudimental precursor of the umbilical cord. It is known as the ventral stalk because somewhat later in the course of development it becomes attached to the ventral (abdominal) surface of the embryo.
Ver´nix cas´e-o´´sa. A fatty substance that covers the skin of the fœtus.
Ver´sion. The act of turning, especially the manual turning of the fœtus in delivery. External v., that which is performed by outside manipulation. Internal v., version performed by the hand introduced into the uterus. Braxton Hicks’ Version, a version done with the whole hand in the vagina and two fingers entering the uterus through the partially dilated os.
Ves´i-cal. Pertaining to the bladder.
Vi´a-bil´´i-ty. Able to live after birth.
Vil´li. 1. The finger-like projections that develop on the outside of the egg and connect it vascularly and otherwise with the uterus; a vascular chorionic tuft. 2. A minute club-shaped projection from the mucous membrane of the intestine.
Vul-sel´lum. A forceps with teeth on the ends of the jaws.
Walch´er’s position. The patient on the back with the hips at the edge of the table and the legs hanging down.
Whar´ton’s jelly. The soft pulpy connective tissue that constitutes the largest part of the umbilical cord.
Womb. Same as uterus.