Sept14 A3-Review 3 Flashcards
original location of the SCJ (squamocolumnar junction) in the infants and in menopause
endocervical (inside cervical canal)
note: cervical canal (endocervix) = simple squamous.
exocervix = stratified columnar
what happens to SCJ during puberty
moves downwards caudally (caudad) where it is exposed to an acidic pH from lactic acid produced by lactobacilli. this induces squamous metaplasia which changes columnar cells (exocervix) into squamous cells so the SCJ moves cephalad
what’s the TZ (transformational zone) + clinical significance
- area between original and new SCJ (post puberty)
- more at risk of HPV infection and being targeted by oncogenes bc of high cellular turnover
name of hormone causing uterine contractions in labor
oxytocin
which placental cells produce hcg
syncytotrophoblasts
effects of estrogen in pregnancy
- increased uterine blood flow
- increased uterine growth
- increased prolactin secretion
- relaxation and dilation of blood vessels is caused by PROGESTERONE*
examples of normal phgy changes in pregnancy
- increased GFR
- drop in BP
- increased tidal volume
- increased RBCs
how HR changes in pregnancy
increases
contraception method with lowest failure rate with typical use
female sterilization
most common fetal presentation in the term pregnancy
cephalic
smallest skull diameter in the fetus
suboccipitobregmatic
pelvic shape allowing the easiest passage for a vaginal delivery
gynecoid
one test for ruptured membranes in pregnancy
ferning visualized on microscope
most likely cause of anemia in a 35 yr old woman at G5P4
iron deficiency anemia
most conclusive assessment to make the dx of labor
dilatation of the cervix
