Embryology MCQ Flashcards
(46 cards)
Vemix caseosa is a fatty substance covering by the end of the intrauterine life:
Skin of the fetus
The buccopharyngeal mebraneis formed by:
Ectoderm and endoderm
Placenta previa result from implantation in:
The region of the internal opening (os) of the cervix
Erythboblastosis is fetalis disease may occur in cases where:
The fetus is RH(+) and the mother is RH(-)
Cotyledons are compartments of:
Umbilical cord
Situs inversus is a condition occurring in approximately 20% of patients with:
Kartagener syndrome
The embryo at the time of implantation is in the :
8-cell stage
Maintaining of structure and function of corpus luteum during the first intrauterine of pregnancy depending on:
hCG
The length of a normal pregnancy is considered to be:
280 days after fertilization
During ovulation extruded from ovary to the uterine tube is the:
Secondary occyte in metaphase
The lens placode is a derivative of:
Ectodermal germ layer
Which one is not the approach used for assisted reproductive technology?
a. ICSI
b. ZIFT
c. OMI
A phenomenon occurring during the third week of development is:
Formation of the notochord
The parenchyma of the thyroid gland develops from the:
Endoderm
Which one is the derivative of somite?
Subcutaneous tissue of the skin
The process of compaction occurs at:
8-cell stage
The secondary yolk sac in an embryo is at age of:
13 days
The umbilical cord during the end of 4th month containg
a. One artery and one vein
b. Two arteries
c. One artery and two veins
d. Two artery and two veins
e. None of them
The uteroplacental circulation begins by the end of the:
Secondary week of the development
An abnormal number of sex chromosomes occurs in:
Tumer syndrome
Interior parathyroid gland develops from:
3rd pharyngeal pouch
Vitelline duct:
Connects cavity of yolk sac with midgut
Chorion frondosum has got contact with:
Decidua basalis
Ultimobranchial body contributes cells to:
Thyroid
