Page 91 - كتاب تمريض نسا الاكتروني

89

Reproductive System

 Uterus

• Size: increases to 20 times from 7.5×5×2.5 cm in a state of non-pregnant

woman to 35×25×20 cm at term in pregnant woman due to hyperplasia and

hypertrophy.

• Wall: changes from almost a solid globe to a hollow vessel.

• Weight: increases from 50 grams in non-pregnant to 1000 grams at term in

pregnant woman.

• Volume: increases from less than 10 ml to 5000 ml.

• Contractions: Braxton Hicks (irregular, painless contraction).

• Shape: changes from an inverted pear to globular by 8 weeks and pyriform
th
by 16 weeks still term.
th
• Endometrium: consists of 3 layers:

• Decidua basalis: uterine lining beneath implantation.

• Decidua capsularis: portion of the decidua that covers the embryo.

• Decidua vera: all of the uterine lining that is not in contact with the fetus.

Table of Content