NURS 84 Chapter Notes - Chapter 3: Sacrum, Linea Terminalis, Fetal Position
Document Summary
Home preparation for the second week of perinatal theory class (intrapartum): 3 phases of contraction: increment as contraction starts at the fundus, peak or acme, decrement. Myometrial muscles: the upper 2/3 actively pushes the fetus down, the lower. 1/3 passive myometrial cells in the top portion become shorter, lower- longer. Length (duration) frequency strength where and how to palpate will cause changes in the cervix and fetus: Inlet: symphysis pubis, sacral promontory, linea terminalis ; True pelvis: inlet, midpelvis, outlet transverse diameter ~13. 5 cm; anterior-posterior conjugate ~11. 5 cm. Midpelvis : the narrowest part; boundaries: ischial spines anterior-posterior diameter ~12cm, transverse ~ 10. 5 cm. Fetal skull seven bones, four sutures overriding and molding, Fetal lie orientation of long axis of the fetus to the long axis of the mother longitudinal or transverse. Attitude relation of fetal body parts to one another. Cephalic: vertex, military, brow, face presentations depending upon attitude.
