study guide part 2 Flashcards
- Ductous venous and ductous arterioles
ductuos venous: carrues oxygenated blood from umbilical vein to IVC ductous arterioles: carries oxygenated blood from pumlomary artery to descending Ao (JL)
- What forms the umbilical cord?
two arteries one vein. It whartons jelly
- Length of umbilical cord? Short, normal and long
Short: 35cm Normal: 40-60cm Long: 80cm (harley)
- Cystic Mass in umbilical cord?
omphalomesenteric or allintoic (JL p 1243)
- Prolapse?
Prolapsed of the cord occurs when the cord lies below the presenting part (harley slide 74)
- Acrania and anencephaly, difference between them?
Acrania: partial no skull anencephaly: no skull and no brain (harley slide 77)
- Protrusion of the eyeball?
exophthalmos (jl)
- Most common neck mass in fetus?
cystic hygroma
- Anomaly where proboscis is present?
holoproscenphaly
- Cleft lip and palates?
msot common congential anomaly of the face most common in Native Americans failures to fuse primary and secondary palate (jl)
- Scanning parameter what is the best view for spina bifida?
coronal (jl)
- Meckel-Gruber Syndrome
d
- Arnold-Chiari Malformation?
lemon shaped head banana shaped cerebellum assocaited with spina bifida in type 2 in the hindbrain absent CM and CSP (jl p 1112-1113 and 1295)
- Ventriculomegaly
dliation of ventricles within brain (jl 1306)
- Hydrocephalus
ventriculomegaly is coupled with enlargement of fetal head (jl 1306)
- Encephalocele,
herniation of meninges and brain (jl 1293)
- Cebocephacele
form of holoprosencephlay characterized by a common ventricle, hypotelorism, and nose with single nostril (JL p
- Fetal viability, most important piece of information?
Adequacy of pulmonary development
Single most important determinant of viability. Fetus nonviable before 24 weeks gestation due to pulmonary immaturity. pg. 1311 (BF)
- The normal fetal thorax should include?
size, shape and symmetry
- Cardiac rates, axis?
45 degrees toward left shoulder 120-160 bpm
- Abcsess?
??
- CAM?
Type 1: Single or multiple large cysts 2cm in diameter; good prognosis after rescetion of affected lung Type 2: Multiple small cysts,
- Most common lung cyst in a fetus?
Bronchiogenic cyst
- What will the texture of the lungs look sonographically?
Moderate echogenicity
- Diaphragmatic hernia, both areas that could be effected?
Foramen of Morgagni, Foramen of Bochdalek