Mrs. Chotkowski Jr / Sr Repro. Placenta What is this icky gooey stuff?? It’s function is to protect the fetus during development.

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Presentation transcript:

Mrs. Chotkowski Jr / Sr Repro

Placenta What is this icky gooey stuff?? It’s function is to protect the fetus during development

Placenta There are three embryonic membranes: Chorion Allantios Amnion

Placenta Chorion: Outermost layer of the placenta Connected to the uterus

Placenta Chorion Cont: Points of attachment provide nourishment and waste disposal for the embryo

Placenta Amnion: “Bag of waters” Sac surrounding the embryo Contains amniotic fluid to protect the embryo from shock.

Placenta Amnion cont: Umbilical cord connects the amnion to the embryo’s navel. The cord provides nourishment to the embryo.

Placenta Allantios: Extension of the urinary system of the embryo. Lies between the amnion and the chorion.

Placenta Allantios: Contains allantoic fluid which originates in the embryo’s kidney. (fetal waste)

Placenta Ruminant Placenta is different. There are elevations located on the maternal surface.

Placenta Cotyledons: “buttons” elevations on the fetal surface that adhere to the maternal caruncle

Placenta Caruncles: Fleshy mass on maternal ruminant placenta Attaches to the fetal cotyledon. Together they form the placentome.

The End