Wk6 Placenta Histo Flashcards by Weston Tardy | Brainscape

Q

4 components of chorionic villi:

A

extraembryonic mesoderm
cytotrophoblasts
syncytiotrophoblasts (multinucleated)
blood vessels

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Q

Villi with trophoblasts ONLY:

A

primary villi

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Q

Villi with mesodermal core?

A

secondary villi

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Q

Villi containing blood vessels?

A

tertiary villi

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Q

Full of glycogen and lipid?

A

endometrial stromal cells

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Q

3 placental compartments:

A

decidua basalis
decidua capsularis
decidua parietalis

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Q

Adjacent to decidua basalis

2-4 tertiary villi each

A

cotyledons

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Q

How many umbilical arteries?

A

2

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Q

How many umbilical veins?

A

1

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Q

Which placental barrier cells disappear after twenty weeks?

A

cytotrophoblasts

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Q

Hormones not produced by syncytiotrophoblasts:

A

prolactin, PGs, relaxin

** produced by decidua cells

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Q

softens pubic symphysis prior to parturition

A

relaxin

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