Solutions
What are the 3 functions of the bony pelvis? Right Ans - (1) attachment site
and support for pelvic organs (2) site of attachment and articulation to the
lower limbs (3) supports the weight of the upper trunk and distributes to
lower extremities
What nerve innervates the perineum? Right Ans - Pudenal nerve
What pelvis includes the iliac fossa and the iliac crest, and has little obstetric
significance? Right Ans - False pelvis
What pelvis includes the pelvic brim from the superior part of the symphysis
pubis around the sacral promontory? Right Ans - True pelvis
Where does the pudenal nerve originate? Right Ans - S2, S3, S4
What are hormones that cause an effect on the uterus, such as estrogen and
progesterone? Right Ans - Uterotropins
What are hormones that cause an effect on the inducing uterine contractions,
such as oxytocin and prostaglandins? Right Ans - Uterotonins
What are the traditions 4 Ps of labor? Right Ans - (1) passenger (2) power
(3) passage (4) psyche
What is the descent of the fetus into the true pelvis? Right Ans - Lightening
Who is lightening more common with? Right Ans - Nulliparous
When does lightening normally occur? Right Ans - As early as 4 weeks
prior to the start of labor
What is the result of the lengthening of the muscle fibers at the internal os,
which stretch the endocervix upward into the lower uterine segment?
Right Ans - Effacement
,In nulliparous women, _______ typically proceeds dilation? Right Ans -
Effacement
The passing of the mucus plug often indicates that labor will start within
when? Right Ans - 48 hours
What is the widening of the external os? Right Ans - Dilation
What are inhibitors of uterine contractions? Right Ans - (1) progesterone
(2) prostacyclin (3) relaxin (4) nitric oxide (5) other hormones
When are the inhibitors of uterine contractions present? Right Ans -
Quiescence
What is the main characterization of the activation phase (1) of partuition?
Right Ans - Loss of progesterone dominance
Where is the uterine muscle the thickest? Right Ans - At the fundus
What phase of parturition is the stimulation of uterine myometrial activity?
Right Ans - Phase 2
What does the placenta release during phase 1 of partuition that can help
transition from progesterone to estrogen dominance? Right Ans - CRH
What layer of muscle of the uterus do contractions originate from? Right
Ans - Myometrium
What happens to the myometrium during the activation phase of parturition?
Right Ans - Becomes more sensitive to labor hormones
What happens to the myometrium during the activation phase of parturition?
Right Ans - Regular contractions due to influence of oxytocin and
prostaglandings
What hormones predominate during the activation phase of parturition?
Right Ans - (1) oxytocin (2) prostaglandins
, Propagation of contractions wave of fundal dominance? Right Ans - (1)
start in the fundus (2) last longer in the fundus (3) progress from the fundus
toward the isthmus
https://quizlet.com/305168123/nm704-exam-1-modules-1-3-flash-cards/
Right Ans -
What are the 3 fetal presentations? Right Ans - (1) cephalic (2) breech (3)
shoulder
What is fetal presentation determined by? Right Ans - First portion of the
fetus to enter the pelvis
Flexion of the fetal head during labor results in what? Right Ans -
Presentation of a smaller diameter
What is the untwisting of the neck after birth of the head? Right Ans -
Restitution
What type of pelvis has a short anteroposterior diameter and a wide
transverse diameter? Right Ans - Platypelloid
What are the positional changes the fetus undergoes to accommodate itself to
the maternal pelvis? Right Ans - Mechanisms of labor
What is it when the lowest level of the presenting part has reached the level of
the ischial spines? Right Ans - Engagement
What type of pelvis shape is the most often seen, it is round to slightly oval, it
has the best chances at a normal vaginal delivery? Right Ans - Gynecoid
What pelvis shape is flat female shape, flat inlet with shortened obstetrical
(AP) diameter. WIDE transverse diameter longer than AP diameter, very wide
pubic arch, long transverse angle, sharply angulated sacrum, less common
5%? Right Ans - Platypelloid
What pelvis shape is apelike shape, inlet transverse is greater than inlet
obstetrical diameter, long AP diameter, long sacrum 25%? Right Ans -
Anthropoid