week 3 Flashcards
the uterus landmarks
- pubis
- vagina
- bladder
ovaries are anterior to the
internal iliac
on SAG TV scan screen: ___ and ___ are on the left and right of the screen respectively
- anterior
2. posterior
on SAG TV scan screen: __ and ___ are on the top and bottom of the screen respectively
- inferior (Caudal)
- superior (Cranial)
* think the probe top is inserted by the bottom of the patient
on TRV TV scan screen: __ and __ are on the left and right of the screen respectively
- right
2. left
T/F: in TRV the top and bottom of the screen are the same as in SAG - top = inferior, bottom= superior
TRUE
shadowing of cervix occurs because of ___
fornices
when is Transperineal Scanning AKA Translabial scanning used
-later in pregnancy
why is translabial scanning used
- image Cervix and Lower uterine Segment
- Assess Cervical Length or Placental localization
why would SIS (Sonohysterography) be used?
Thickened endo -polyp -submucosal fibroid -Synechia (scaring of endometrium) -endo hyperplasia Infertility Uterine congenital defect
smallest element is the Pixel (picture element) in ___ Ultrasound
2D
smallest element is the voxel (volume element) in ___ U/S
3D
-gives depth
at __ weeks; germ cells migrate from the Yolk Sac form the genital ridges
5
at __ weeks GA; BOTH MALE AND FEMALE EMBRYOS HAVE 2 SETS OF PAIRED GENITAL DUCTS
6
Paramesonephric (mullerian)
female ducts
Mesonephric (wolffian)
male ducts
what grows to become the uterus
paramesonephric / mullerian
at __ weeks; the paramesonephric (Mullerian Ducts) fuse caudally to form Ut, Cx and upper part of the vagina
10
the unfused Cranial ends of ___form the paired fallopian tubes
mullarian ducts
Pyo
pus
Hemato
blood
Metra
endometrium
Colpus
vagina
Collis
neck / cervix
Cornua
horns/ lateral angles
Sallpinges
fallopian tubes/ uterine tubes
If Wolffian ducts do not fully degenerate; this causes Gartner Duct cyst Mainly along the ___
vagina
Wolffian ducts in ___ degenerate in ___
- male
2. female
What would be the best way to see submucosal fibroid?
saline infusion
Uterine Malformations may be caused by the following
- Arrested development of the Mullerian ducts
- Failure of fusion of the mullerian ducts
- Failure of resorption of the median septum
bilateral arrested development results in
uterine aplasia (absense)
unilateral arrested development results in
- Uterus Unicornis Unicollis = 1 Uterine horn
- 1 cervix
failure of the mullerian ducts to fuse results in
- complete didelphys
- partial bicornis bicollis
or
partial bicornis unicollis
2 uteri, 2 cervix, 2 vag
complete didelphys
1 vag, 2 cervix, 2 uterine horns
bicornis bicollis
2 uterine horns, 1 cerxiv, 1 vag
bicornis unicollis
mild indentation of endometrium at uterus fundus charcateristic of
arcuate (mild) lack of resorption
-septate
The ducts that are paired in both female and male embryos are the _______ and the _________.
mullarian and wolf
failure of mullarian ducts to fuse causes
- didelphysis (complete)
- bicornis unicollis (partial)
- bicollis (partial)
lack of resorption of median septum causes
- septus (complete)
- subseptus (incomplete)
- arcuate (incomplete) **MILDEST
repair bicornute uterus
abdominal surgery
easier to scan uterus in __ phase, why?
secretory (luteal) bc endometrium is thickest
Diethylstilbestrol meds given to a mother causes
T shape uterus in baby
Congenital Des
T-shape uterus
Gravida
of pregnancies
number of term pregnancies
para
