What is Allantois?

allantois is a membrane that is present in the embryonic stage of mammals, reptiles and birds. The allantic membrane is designed to help survive and remove the waste from the animal. Liquid waste and the gases used by the embryo are exchanged by this membrane. Allantois contains a network of blood vessels used by the animal to remove waste products from the body.

Although many different animals have an allantic membrane, they are not exactly the same. In birds and reptiles allantoic membrane not only removes embryo waste, but also helps to provide oxygen. Despite the appearance that the egg shell is solid, it can be an oxygen penetration. Allantois absorbs oxygen that enters the egg and transmits it to the embryo.

most mammals give you young people. In these animals, Allantois is a early part of the umbilical cord. In many mammals, Allantois eventually develops into the umbilical cord. In human embryos, allantois develops as part of the digestive system at the beginning of conception. It matures into the umbilical cord that is responsible for the PSKYetting nutrients and removal of waste.

Animals that have an allantic membrane are called amniotic. In addition to Allantois also have amnion and chorion, which are both embryonic membranes. Amnion is a membrane that protects the embryo from damage during pregnancy. The second membrane that amniotic has in common is Chorion. Chorion is responsible for the transmission of nutrients between mother and embryo. This transmission is carried out through the circulatory system.

In addition to reptiles, mammals and birds, which form a group known as amniotic, there was previously a larger group of animals that belonged to this group. Dinosaur's embryo contained allantic membranes, which also made amnoty.Allantois, Chorion and Amnion to form during the earliest period of pregnancy. These membranes are an important part of embryo development. Problems with some of these membranes can lead to the loss of embryo viability.