Components of Labor - Intrapartal Care

Question 1

is composed of the bony pelvis and the soft
tissues of the cervix, vagina, and perineum.

Answer 1

PASSAGE

Question 2

the fetus

Answer 2

PASSENGER

Question 3

or the uterine contractions and the use of
abdominal muscles for the pushing stage

Answer 3

POWERS

Question 4

psychological state of the laboring woman

Answer 4

PSYCHE o

Question 5

the route a fetus must travel from
the uterus through the cervix and
vagina to the external perineum.

Answer 5

Passage

Question 6

bony passage:

Answer 6

pelvis

Question 7

soft passages

Answer 7

cervix, vagina,
perineum.

Question 8

has no obstetrical significance

Answer 8

False Pelvis

Question 9

Linea Terminalis

Answer 9

Inlet

Question 10

Where fetus must pass int he birth process

Answer 10

True Pelvis

Question 11

(Inlet)well-rounded forward
& backward; wide pubic
arch; “female pelvis”

Answer 11

Gynecoid

Question 12

The pubic arch forms an
acute angle ; lower pelvic
dimensions extremely
narrow; “male pelvis”

Answer 12

Android

Question 13

smoothly curved oval inlet,
but AP diameter is shallow;
“flattened” pelvis

Answer 13

Platypelloid

Question 14

Narrow transverse diameter
-AP diameter of inlet is
larger than d usual;
“ape-like” pelvis

Answer 14

Anthropoid

Question 15

Distance between upper (superior) border
of the symphysis pubis to sacral
promontory
Adequate size: 11-11.5 cm

Answer 15

True Conjugate

Question 16

Widest AP diameter at outlet
 Distance from the lower (inferior) margin
of the symphysis to the sacral promontory
 Adequate size: 12.5 cm or more

Answer 16

Diagonal Conjugate

Question 17

Smallest AP diameter of the pelvic inlet
through which the head must pass
* Distance between the inner surface of the
symphysis pubis to sacral promontory
* To estimate: subtract 1.5 to 2 cm from the DC

Answer 17

Obstetric Conjugate

Question 18

Smallest diameter of
midpelvis
 Distance between the 2
ischial spines identified
through palpation during
Internal Examination (IE)
 Curved sacrum at midpelvis
allows more room for
presenting part

Answer 18

Transverse diameter:

Question 19

Smallest measurement in the distance
between the 2 ischial tuberosities
 The narrowest transverse diameter of
the pelvic outlet though which the
widest diameter of the fetal head
(biparietal diameter) must pass
through

Answer 19

PELVIC OUTLET

Question 20

The ____ effaces
and dilates sufficiently
to allow the first fetal
portion to descend
into the vagina

Answer 20

cervix

Question 21

The ___ ___
(muscular layer)
helps the fetus rotate
anteriorly as it passes
through the birth
canal.

Answer 21

pelvic floor

Question 22

The ___ _____
participates in
childbirth via passive
distention.

Answer 22

vaginal canal

Question 23

widest diameter

Answer 23

Fetal head

Question 24

A ________ soft
membranous gaps
(sutures) between the
cranial bones.

Answer 24

fontanel

Question 25

the overlapping of skull bones along the suture lines; cause a change in the shape of the fetal skull to one long and narrow (that facilitate passage to the rigid pelvis).

Answer 25

Molding

Question 26

To fit through the inlet of the birth canal best, a fetus must present the smallest diameter (the transversediameter) of the head to the smallest diameter of the maternal pelvis (diagonal conjugate).

Answer 26

DIAMETERS OF THE FETAL SKULL

Question 27

The smallest AP diameter; measurement (approximately 9.5 cm); measured from the inferior aspect of the occiput to the center of the anterior fontanel

Answer 27

Suboccipitobregmatic

Question 28

Measured from the occipital prominence to the bridge of the nose, is approximately 12 cm.

Answer 28

Occipitofrontal Diameter

Question 29

The widest AP diameter (approximately 13.5 cm); measured from the posterior fontanel to the chin

Answer 29

Occipitomental Diameter

Question 30

(Transverse Diameter) The smallest diameter of the fetal head which measures about 9.25 cm.

Answer 30

Biparietal Diameter

Question 31

The narrowest diameter at the pelvic inlet; a space approximately 11 cm wide.

Answer 31

Anteroposterior Diameter

Question 32

The best presentation for birth is when the

Answer 32

fetus presents a Biparietal Diameter to AP Diameter of pelvis.

Question 33

At the _____, If a fetus presents one of the AP diameters of the skull to the AP diameter of the inlet, ENGAGEMENT, into the pelvis, may oc

Answer 33

Inlet

Question 34

At the _____, the fetus must rotate to present this narrowest fetal head diameter (BD*) to the maternal Transverse diameter, a space, approximately 11 cm wide

Answer 34

Outlet