TEST 5 Flashcards
The amniotic cavity is formed by the:
a) Inner cell mass
b) Yolk sac
c) Trophoblast
d) Chorion
Inner cell mass
The embryonic disc is formed from the:
a) Epiblast
b) Hypoblast
c) Syncytiotrophoblast
d) Cytotrophoblast
Epiblast
The umbilical vesicle is also known as the:
a) Amnion
b) Chorion
c) Yolk sac
d) Placenta
Yolk sac
The embryonic disc consists of two layers called the:
a) Ectoderm and endoderm
b) Ectoderm and mesoderm
c) Endoderm and mesoderm
d) Mesoderm and trophoblast
Ectoderm and mesoderm
The embryonic disc is formed during the process of ________.
Gastrulation
The umbilical vesicle is responsible for early ________ in the developing embryo.
Nutrient exchange
The umbilical vesicle gives rise to the fetal digestive system. True/False
True
The amniotic fluid provides a protective cushion for the developing embryo. True/False
True
The umbilical vesicle is derived from the trophoblast. True/False
False
The embryonic disc is the first structure to form during embryogenesis. True/False
True
The chorionic sac is composed of two layers known as the:
a) Ectoderm and mesoderm
b) Ectoderm and endoderm
c) Cytotrophoblast and syncytiotrophoblast
d) Chorion and amnion
Cytotrophoblast and syncytiotrophoblast
The chorionic sac is responsible for:
a) Nutrient exchange between the mother and fetus
b) Formation of the umbilical cord
c) Production of amniotic fluid
d) Protection of the developing embryo
Nutrient exchange between the mother and fetus
The chorionic sac eventually gives rise to the formation of the:
a) Placenta
b) Amniotic cavity
c) Umbilical vesicle
d) Allantois
Placenta
The chorionic sac is responsible for the production of hormones during pregnancy. True/False
False
The chorionic sac eventually fuses with the amnion to form the amniotic cavity. True/False
True
The decidua is the specialized lining of the:
a) Placenta
b) Uterus
c) Amniotic cavity
d) Umbilical cord
Uterus
The decidua is divided into three regions known as the:
a) Decidua basalis, decidua capsularis, decidua parietalis
b) Decidua serosa, decidua interna, decidua externa
c) Decidua vera, decidua placentalis, decidua amnion
d) Decidua epithelialis, decidua fibrosa, decidua musculosa
Decidua basalis, decidua capsularis, decidua parietalis
The placenta is attached to the uterine wall at the region of the:
a) Decidua basalis
b) Decidua capsularis
c) Decidua parietalis
d) Decidua serosa
Decidua basalis
The decidua capsularis covers the ________ and surrounds the developing embryo/fetus.
Amniotic cavity
The placenta acts as a barrier, preventing the mixing of the mother’s and fetus’s blood. True/False
True
The decidua sheds during menstruation if pregnancy does not occur. True/False
True
The decidua capsularis is in direct contact with the fetus. True/False
False
The placenta is primarily formed by the maternal tissues. True/False
False
The decidua plays a crucial role in providing nourishment to the developing fetus. True/False
False