Which extraembryonic membrane accumulates fetal urine?Multiple choice question.AmnionChorionAllantoisYolk sac

Break Down the Problem

1. Identify the extraembryonic membranes.
2. Determine which membrane is responsible for accumulating fetal urine.

Relevant Concepts

• Extraembryonic membranes include the amnion, chorion, allantois, and yolk sac, each serving specific functions during embryonic development.

Analysis and Detail

1. Amnion: This membrane surrounds the embryo and contains amniotic fluid that cushions the developing fetus.
2. Chorion: This is involved in nutrient and gas exchange and contributes to the formation of the placenta.
3. Allantois: This membrane plays a crucial role in excretion and respiration. It collects the waste products, including fetal urine.
4. Yolk sac: This membrane provides nutrition in early development but does not accumulate urine.

Verify and Summarize

The allantois is specifically associated with the collection and excretion of waste, including urine, produced by the developing fetus.

Final Answer

The extraembryonic membrane that accumulates fetal urine is the Allantois.