MATERNAL PHYSIO 1

Question 1

Uterus of a non-pregnant woman

Answer 1

70g and almost solid, except for the cavity of 10ml or less

Question 2

Uterus during pregnancy

Answer 2

• Weights 1,100g

- Thin-walled muscular organ of sufficient capacity to accommodate the fetus, placenta and amniotic fluid

Question 3

Uterus during pregnancy is stimulated by

Answer 3

Estrogen and Progesterone

Question 4

3 Layers of the myocyte arrangement

Answer 4

1. Outer hood-like layer
2. Middle layer
3. Internal layer

Question 5

Arches over the fundus and extends into the various ligament

Answer 5

Outer hood-like layer

Question 6

Composed of 2 dense network of muscle fibers

perforated in all directions by blood vessels

Answer 6

Middle layer

Question 7

With sphincter-like fibers around the fallopian tube orifices
and internal cervical os

Answer 7

Internal layer

Question 8

Uterine shape and position during 1st few weeks

Answer 8

maintain original piriform or pear shape

Question 9

Uterine shape and position during 12 week AOG

Answer 9

corpus and fundus become globular and
almost spherical, the organ grows rapidly in length than in width
and becomes ovoid

Question 10

Uterine shape and position during End of 12 weeks AOG

Answer 10

enlarged uterus extends out of the pelvis, it contacts the anterior abdominal wall, displaces the intestines
laterally and superiorly and ultimately reaches almost to the liver

Question 11

Uterine ascent

Answer 11

rotates to the right, this dextrorotation likely is

caused by the rectosigmoid on the left side of the pelvis

Question 12

The uterus rises, tension is excreted on

Answer 12

broad and round

ligament

Question 13

the longitudinal axis of the uterus corresponds
to an extension of the pelvic inlet axis, when relax the abdominal
wall supports the uterus and maintain its axis

Answer 13

Standing position

Question 14

the uterus falls back to rest on the vertebral

column and the adjacent great vessels

Answer 14

Supine position

Question 15

Uterine contractility during Early pregnancy

Answer 15

• Irregular contractions

- Painless

Question 16

Uterine contractility during 2nd trimester

Answer 16

-Braxton Hicks contractions

= Unpredictably, sporadically, nonrhythmic, 5 and 25 mmHg

Question 17

Uterine contractility during Last several weeks

Answer 17

infrequent but increase in numbers

Question 18

Uterine contractility during Last week or two

Answer 18

• contracts as often as every 10 – 20 mins and with some degree of rhythmicity
• May cause some discomfort and account for so-called false labor

Question 19

Normal uteroplacental blood flow

Answer 19

500 to 700 ml/min

Question 20

Factor that decreases uteroplacental blood flow

Answer 20

• Low arterial pressure
• Uterine contraction
• Supine position

Question 21

Condition associated with decrease placental perfusion

Answer 21

• Hypertension
• IUGR
• DM
• Multiple gestation

Question 22

The delivery of most substances essential for fetal and placental
growth, metabolism and waste removal is dependent on adequate
perfusion of the placental intervillous space

Answer 22

Uteroplacental blood flow

Question 23

Placental perfusion is dependent of

Answer 23

Total uterine blood flow

Question 24

Maternal-placental blood flow progressively increase during

gestation principally by means of

Answer 24

Vasodilation

Question 25

Uteroplacental Blood Flow Regulation during 20 weeks

Answer 25

uterine artery diameter doubled

Question 26

softening and cyanosis, 1 month after conception

Answer 26

Goodell’s Sign