Uterus

• When the urinary bladder is empty, what is the largest organ in the normal female pelvis?

  Uterus
• The shape of the uterus could be described as what?

  Pear-shaped
• What does the average menarcheal uterus approximately measure as?

  6-8 cm long

  3-5 cm wide
• What does the average premenarchal uterus approximately measure as?

  1-3 cm long

  .5-1 cm wide
• What does the average postmenarchal uterus approximately measure as?

  3.5-5.5 cm long

  2-3 cm wide
• What does the size of the uterus varies with?

  Age and parity
• What are the three sections of the uterus?

  Fundus, body and cervix.
• __________ is the widest and most superior portion of the uterus.

  fundus
• At the lateral borders of the fundus are the __________.

  cornua
• Where does the fallopian tubes enter the uterine cavity?

  cornua
• ___________ is the largest portion of the uterus.

  Body or corpus
• The _______________ is centrally located within the pelvis and is a potential space for fluid to accumulate, allowing for dynamic changes during the menstrual cycle and pregnancy.

  uterine cavity
• The ___________ is the lower cylindrical portion of the uterus that projects into the vaginal canal.

  cervix
• _____________ is the outer transition point between the body and cervix.

  isthmus
• Where does the uterus bend anteriorly or posteriorly?

  isthmus
• What are the three histologic layers that the uterine wall consists of?

  Serosa / perimetrium

  Myometrium

  Endometrium
• ____________ is the external layer that reflects on the anterior surface of the uterus at the isthmus.

  Serosa / perimetrium
• ____________ is the thickest layer of the uterus.

  Myometrium
• ____________ is the muscular middle layer and is primarily smooth muscle that is longitudinal and circular.

  Myometrium
• ____________ is the mucous membrane, glandular tissue lining the uterine cavity.

  Endometrium
• What are the two primary layers of the endometrium?

  Superficial functional layer (zona functionalis) and

  Deep basal layer (zona basalis)
• Which layer is of glands and stroma (supporting tissue) that sheds with menses?

  functional
• ___________ is a thin layer of the blind ends of endometrial glands that regenerates new endometrium after menses.

  basal
• What are the ligaments that supports the uterus maintain its midline position?

  Broad ligament

  Round ligament

  Uterosacral ligament

  Cardinal ligaments
• ________________ are a double fold of peritoneum that drapes over the fallopian tubes, uterus and ovaries.

  Broad ligaments
• Mesosalpinx


  Upper fold of the broad ligament that encloses the fallopian tube as it extends from the cornua.
• Mesovarium


  Posterior portion of the broad ligament that is drawn out to enclose the ovary.
• __________________ are fibrous cords that occur in front of and below the fallopian tubes between the layers of broad ligament.

  Round ligaments
• Two cords of the ________________ commence on each side of the superior aspect of the uterus, course upward and lateral to the inguinal canal, insert into the labia majora and help to hold the uterine fundus and body in a forward position.

  Round ligaments
• The _____________ is the only potion of the uterus that is firmly supported.

  cervix
• ________________ are a continuation of the broad ligaments that extend across the pelvic floor laterally.

  Cardinal ligaments
• ________________ originate at the lateral uterine isthmus and extend downward along the sides of the rectum to the 3rd or 4rth bones of the sacrum.

  Uterosacral ligaments