Asked by Keenan Bhiro on May 07, 2024
Verified
The placenta develops from
A) fetal membranes only.
B) maternal tissue only.
C) both fetal and maternal tissue.
D) separate polar bodies that develop just the placental tissues.
E) from the yolk sac.
Placenta
An organ in mammals that develops during pregnancy, providing oxygen and nutrients to the fetus while removing waste products.
Fetal Membranes
The membranes that surround the developing fetus in the womb, including the amnion, chorion, and others, providing protection, nourishment, and waste removal.
Maternal Tissue
The tissue derived from the mother, particularly significant in plants and animals for providing nutrients to the offspring or embryo.
- Identify the development and role of embryonic structures and their significance in fetal growth.
Verified Answer
TR
Trinity RobinsonMay 11, 2024
Final Answer :
C
Explanation :
The placenta is a complex organ formed by both fetal and maternal tissues. The outer layer of the placenta is formed by the trophoblasts, which are derived from the fetal tissue. The inner layer of the placenta, which contains the fetal blood vessels, is made up of maternal tissue. Therefore, both fetal and maternal tissues contribute to the formation of the placenta.
Learning Objectives
- Identify the development and role of embryonic structures and their significance in fetal growth.