Components of Labor Pt.2 Flashcards
describes the degree of flexion a fetus assumes
during labor or the relation of the fetal parts to each other.
Fetal ATTITUDE
the relationship between the long (cephalocaudal) axis of the
fetal body and the long axis of a woman’s body
Fetal LIE
denotes the body part that will first
contact the cervix or be born first and is determined by the combination of fetal lie
and the degree of fetal flexion (attitude)
Fetal PRESENTATION
the relationship of the presenting part to a specific
quadrant and side of a woman’s pelvis
Fetal POSITION:
a fetus in good attitude; the fetal
head flexes so sharply that the chin
rests on the chest;
suboccipitobregmatic, presents to
the birth canal
Complete (Full) Flexion:
the chin is not touching the chest
but is in alert or “military position”;
the occipitofrontal diameter
presents.
Moderate Flexion:
poor flexion; the back is arched and
the neck is extended, presenting the
occipitomental diameter (the largest
diameter) of the head to the birth
canal presents.
Complete Extension:
horizontal
Transverse Lie
(vertical);
- (cephalic) the fetal
head will be the first
part to contact the
cervix, or
- (breech) with a
foot of the buttocks
as the first to
contact the cervix.
Longitudinal Lie
The most common presentation; allows the
suboccipitobregmatic diameter to present to
the cervix.
Vertex (Good Full Flexion)
The head is moderately flexed, the brow or the
sinciput becomes the presenting part.
Nrow (Moderate Military)
The fetus has extended the head to make the
face the presenting part. From this position ,
extreme edema and distortion of the face may
occur.
Face (Poor)
The fetus has completely hyperextended the
head to present the chin, causing the
presenting diameter (occipitomental) to be so
wide that vagina birth may not be possible.
Mentum (Very poor)
breech good attitude
brings the fetal
knees up against the fetal
abdomen.
breech poor attitude
means the knees
and legs are extended