5 Questions
What is the main function of the placenta?
Facilitating nutrient, gas, and waste exchange between maternal and fetal circulations
In which organ does the placenta connect to the fetus?
Umbilical cord
What comes away with the placenta when it is expelled from the uterus following birth in humans?
Maternal decidual (endometrial) tissue
When did mammalian placentas probably first evolve?
About 150 million to 200 million years ago
What is the protein syncytin found in the outer barrier of the placenta believed to have originated from?
An ancient retrovirus
Test your knowledge of the placenta with this quiz! Learn about its development, functions, and endocrine role in supporting the growing fetus.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
