Lesson 12 Flashcards
Components of Labor
Pelvis (the Passageway)
Fetus (the Passenger)
Uterine factors (powers of labor)
Psyche
Position
The passenger
Fetus
Powers of labor
Uterine factors
Adequate size and contour
Pelvis
Appropriate size and in an advantageous position and presentation
Fetus
Is comfortable and facilitates the labor process
Position
Labor can be viewed as a positive experience
Psyche
Refers to the route of fetus must travel from the uterus through the cervix and vagina to the external perineum
Pelvis (the Passage)
It is the mother’s bony pelvis and soft tissues of the cervix, pelvic floor, vagina,and introitus
Passageway
Anterior and lateral portion is made up of 2 innonimate hip bones divided into three parts
Illium
Ischium
Pubis
Composition of posterior portion
Sacrum
Coccyx
Psychological preparedness of the mother
Psyche
2 division of pelvis
False Pelvis
True Pelvis
Upper half of the Pelvis
False pelvis
Lower half of the pelvis
True Pelvis
Supports the uterus during the late months of pregnancy and aids in directing the fetus into the true pelvis for birth
False Pelvis
Long bony curved canal
True pelvis
True pelvis is dvided into three parts
Inlet
Pelvic cavity
Outlet
Imaginary line from the sacral promontory to the superior borded of the SP
Linea Terminalis or BRIM
Divides the true and false pelvis
Linea Terminalis or Brim
Types of female pelvic shapes
Gynecoid
Android
Anthropoid
Platypelvic
FEMALE pelvis
Gynecoid pelvis
Has an inlet that is “well rounded” and “wide pubic arc”
Gynecoid pelvis
This pelvis is ideal for childbirth
Gynecoid
The pubic arc forms an acute angle
Android
MALE pelvis
Android
A fetus may have difficulty in exiting from this type of pelvis
Android
APE LIKE pelvis
Anthropoid
It’s transverse diameter is narrow
Anthropoid
The anteroposterior diameter of the inlet is larger than usual
Anthropoid
The shape of this pelvis does not accomodate a fetal head
Anthropoid
FLATTENED pelvis
Platypelvic
has a smoothly curved oval
Platypelvis
A fetal head may not be able to rotate
Platypelvis
The sitting bone
Ischial tuberosity
Landmark of the fundal height
Symphysis pubis
Landmark of engagement
Ischial spine
Biggest diameter
Head