What is the wall of yolk sac made up of?

a. +extraembryonic endoderm and extraembryonic mesoderm

b. extraembryonic ectoderm and extraembryonic mesoderm

c. embryonic ectoderm and embryonic mesoderm

d. embryonic endoderm and embryonic mesoderm

e. embryonic mesoderm and embryonic mesenchyme

What do we call the extraembryonic organ that is formed at the end of gasrulation, and represents finger-shaped outgrowth of the extraembryonic endoderm projecting into the connecting stalk?

a. amnion

b. +allantois

c. yolk sac

d. placenta

e. umbilical cord

74. Extraembryonic organ that connects germ with maternal organism:

a. yolk sac

b. amnion

c. allantois

d. umbilical cord

e. +placenta

What do we call the extraembryonic organ connecting the embryo with the maternal organism and consisting of fetal and maternal parts?

a. umbilical cord

b. amnion

c. +placenta

d. yolk sac

e. allantois

What is the fetal placenta made up of?

a. +chorionic plate and chorionic villi

b. decidual membrane of the endometrium

c. deciduous capsular membrane

d. deciduous parietal membrane

e. myometrium

What is the maternal placenta made up of?

a. chorionic plate and chorionic villi

b. +decidual membrane of the endometrium

c. myometrium

d. deciduous capsular membrane

e. deciduous parietal membrane

What is cotyledon of the developed placenta made up of?

a. +branchy anchoring villus

b. lacuna containing maternal blood

c. basal lamina and septa

d. deciduous capsular membrane

e. deciduous parietal membrane

What function does the umbilical cord perform?

a. protective

b. hemopoietic

c. endocrine

d. immune

e. +transport

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As a result of mitotic division, the two somatic cells were formed. What chromosome number do they contain?	\|	What type of tissue is characterized by the polar differentiation of the cells?

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