RT Book, Section
A1 Hoffman, Barbara L.
A1 Schorge, John O.
A1 Halvorson, Lisa M.
A1 Hamid, Cherine A.
A1 Corton, Marlene M.
A1 Schaffer, Joseph I.
SR Print(0)
ID 1171528733
T1 Abnormal Uterine Bleeding
T2 Williams Gynecology, 4e
YR 2020
FD 2020
PB McGraw-Hill Education
PP New York, NY
SN 9781260456868
LK obgyn.mhmedical.com/content.aspx?aid=1171528733
RD 2024/04/19
AB The  endometrium  is  the  source  of  most  abnormal  reproductive  tract  bleeding.  It  consists  of  two  distinct  zones,  the  functionalis  layer  and  the  basalis  layer  (Fig.  8-1).  The  basalis  layer  lies  in  direct  contact  with  the  myometrium  and  beneath  the  functionalis  layer.  The  basalis  serves  as  a  reservoir  for  regeneration  of  the  functionalis  layer  following  menses.  In  contrast,  the  functionalis  layer  lines  the  uterine  cavity  and  undergoes  dramatic  change  throughout  the  menstrual  cycle.  It  ultimately  sloughs  during  menstruation.  Histologically,  the  functionalis  has  a  surface  epithelium  and  underlying  subepithelial  capillary  plexus.  Beneath  these  are  stroma,  glands,  and  interspersed  leukocytes  (Fig.  33-1,  p.  701).