👉 Prothoraces are structures that form a part of the uterus. They contain blood vessels, which supply the uterine lining with nutrients and oxygen, and they also contain tissue cells, such as muscle cells and nerve cells, to help facilitate the movement of the fetus during pregnancy. The term "prothoraces" is derived from Greek roots that mean "in the womb." This term was introduced by ancient Greek scholars to describe the structures found in the uterus during pregnancy. Today, pro
