This part of the egg is a excellent source of riboflavin and protein. The shell is porous and the large end contains more pores than the small end of the egg. The egg is also one of the most nutritious and versatile of human foods. It protects and provides a complete diet for the developing embryo, and serves as the principal source of food for the first few days of the chick's life. The membranes are clear and soft but have a definite egg-like shape. The chalazae function to suspend the egg yolk in the center of the egg. The primary function of the female reproductive system is to produce the female egg cells which are essential for reproduction. 4. The female reproductive system is designed to carry out several functions. Learn more about the health benefits of eggs, some ideas for preparing them, possible health risks, and vegan alternatives. It produces the female egg cells necessary for reproduction, called the ova or oocytes. In low-quality eggs, it appears thin white. Their job is to prevent the liquid that is inside the egg from evaporating, as well as keep the egg protected from bacteria. Eggs can provide valuable nutrients as part of a balanced diet. Vitelline membrane -- The clear casing that encloses the egg yolk. 5. In the long axis of the egg, the chalaziferous layer is twisted at both sides of the yolk, forming a thick rope-like structure named the chalazae (chalaza is the singular term). 6. Fallopian tubes: These are narrow tubes that are attached to the upper part of the uterus and serve as pathways for the ova (egg cells) to travel from the ovaries to the uterus. Structure of the Egg. The fertilized egg then moves to the uterus, where it implants to the uterine lining. (There are about 7,000 pores in a chicken eggshell.) Fertilization of an egg by a sperm normally occurs in the fallopian tubes. 7. These are called as the ova or oocytes. egg passes is also responsible for the expulsion of feces and urine. They prevent the yolk from rising and touching the shell. Vent - the exterior opening through which passage occurs from the digestive system, the urinary tract and the reproductive tract. It is important to know that, the entire system is designed for transporting the ova to the exact fertilization site. In high-quality eggs, the inner thick albumen stands higher and spreads less than thin white. The female reproductive system consists of both internal and external parts. ALBUMEN: The egg white is known as the albumen, which comes from albus, the Latin word for “white.” Four alternating layers of thick and thin albumen contain approximately 40 different proteins, the main components of the egg white in addition to water. The egg is a biological structure intended by nature for reproduction. The Parts of the Egg Looking at the egg from the outside we see the shell, which is a hard, protective covering composed primarily of calcium carbonate. 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